MECHANICS M.E. NEEP EXAM: VERIFIED QUESTIONS AND ANSWERS 100% CORRECT | A+ GRADE

MECHANICS M.E. NEEP EXAM: VERIFIED QUESTIONS AND ANSWERS 100% CORRECT | A+ GRADE “A contractor wants to raise the car speed from 100 fpm to 125 fpm, it currently has a 12" sheave. What is required? - CORRECT ANSWER 100 fpm/125 fpm= 12"/ X =15" "There is slight arcing between the brush and commutator. What action must be taken? - CORRECT ANSWER None Note: Heavy arcing= light brush pressure, Heavy brush pressure= mechanical wear" "If rigging is roped 3:1 and a BEAM CLAMP is used to lift a 6,000lb load. What is the beam capacity? - CORRECT ANSWER 18,000lbs -210" "How much resistance is measured over a normally closed switch? - CORRECT ANSWER .2 Ohms- should be zero but will never be that low" "A car traveling in the hoistway always stops at the same spot and blows a fuse. What causes this? - CORRECT ANSWER traveling cable has a cut/exposed wire or a short - 515" "How is a class 1 yearly buffer test preformed? - CORRECT ANSWER Car at the bottom landing and on inspection, jump out direction and final limits. With pit clear, run down to compress the buffers, buffers should fully extend within 90 seconds. Note: 5 yr is Full load, full speed - 555" "How many strain supports are required on a 350 ft raceway? - CORRECT ANSWER 4 1 every 100ft - 505-510" "How is stainless steel drilled out? - CORRECT ANSWER Slow speed and constant pressure - 205" "What is the required amout of retainer clips for wedge shackles and what is the spacing? - CORRECT ANSWER At least 2. First clip being 4 times the diameter of the rope from the top of the shackle, and the second clip is 8 times the diameter of the rope away from the shackle. - 245" "A 300 ohm resistor burns out, but you dont have another one. How can you make one? - CORRECT ANSWER 2- 600 ohms resistors in parallel is 300 ohms. Resistance is half of the highest resistor in the parallel circuit. 3- 225 ohms is 75 ohms. - 345" "When cutting laminated panels, which direction should the finish side face? - CORRECT ANSWER Finish side facing the cutting edge of the tool. Blade will burr the backside. - 225" "How do you cut a finished floor? - CORRECT ANSWER Cutting blade away from the finished side - 255" "A 480 VAC stepdown 240 VAC transformer is connected to a 3 phase rectifier, what is the output voltage? - CORRECT ANSWER 320 VAC 3 phase full wave= 1.33 x output voltage. - 715" "How many points of contact must be maintained on a ladder? How far above the landing must it extend? What is the proper ratio? What steps dont we use? - CORRECT ANSWER 3 points of contact 3 feet above the landing 4:1 ratio top 2 steps do not get used - 135" "What is the conversion formula when measuring inches to millimeters? - CORRECT ANSWER 1" = 25.4 mm" "You open a dumbwaiter access panel and it still runs, what is the problem? - CORRECT ANSWER Pit access switch is not working properly - 550" "You perform a static load test with the pit valve closed. The car sinks 6" in 15 minutes. What is the problem? - CORRECT ANSWER Cylinder leak - 805" "Where should you aim a fire extinguisher to put out a fire? - CORRECT ANSWER At the base of the fire - 100" "Car with selective collective system is moving to the lobby to take a call, an up call is put in at the 2nd floor, what happens? - CORRECT ANSWER The call is bypassed until the car is traveling in the UP direction - 740" "With a 7 foot platform, your inside cab wall clearance is 6'8". What is the thickness or take up of walls? - CORRECT ANSWER 2 inch thick walls" "You notice Roughing on the Gov and Tail Sheave. What should you check? - CORRECT ANSWER Rope diameter - 250" "Car doors are dragging in the sill, how high should the car doors be above the sill? - CORRECT ANSWER 1/4 inch - 525" "What type of safeties are required on a 300fpm car? - CORRECT ANSWER Type B wedge clamp - 240" "What stopping devices are required on vertical platforms? - CORRECT ANSWER 2 pan switches. 15lbs max pressure" "What type of oil is required for sleeve bearings? - CORRECT ANSWER Single viscosity SAE 20" "What is the maximum inclination for moving walks? - CORRECT ANSWER 12 Degrees - 830" "How does a GFCI work? - CORRECT ANSWER Detects imbalance between hot and neutral - 205" "What is required to provide MSDS or SDS for a solvent you are using? - CORRECT ANSWER Your Employer - 100" "How do emergency doors swing? - CORRECT ANSWER Outwards" "You have an EMT run with 3-90s, 2-45s, and a saddle bend. What is required? - CORRECT ANSWER An intermediate pull box. 360 degrees is the most bends for a continuous pipe run. - 505" "What is the maximum distance between vertical race way supports? - CORRECT ANSWER 15 feet - 505" "What is the smallest wire used inside travelers and outside travelers? - CORRECT ANSWER # 20 awg and #24 awg - 505" "What is the maximum distance between strain relief supports? - CORRECT ANSWER 100 ft - 510" "What is the maximum length motor-generator leads can be outside of a controller? - CORRECT ANSWER 6 feet - 505" "In what section of NEC is elevator, escalator, moving walks and dumbwaiters? - CORRECT ANSWER Article 620 - 505" "What is the ratio between the loop and diameter of a round traveler? - CORRECT ANSWER 30 times - 515" "What is the purpose of a gear reduction unit on a geared machine? - CORRECT ANSWER Increased lifting capacity" "What holds a stopped Hydraulic elevator? - CORRECT ANSWER Check valve" "What must be done if you get on top of a dumbwaiter? - CORRECT ANSWER Never fully get on top. Work only partially on with the mainline disconnect off." "How do you measure an escalator handrail? - CORRECT ANSWER Mark the top and bottom of the inclination, measure in between and mov the car until the bottom mark is at the top. measure again and continue doing this until you see your 1 mark. The last measurement will be shorter. Add all the measurements together to get your length. -835" "A moving walk has an inclination of 10 degrees, what is the highest angle in can be? - CORRECT ANSWER 12 degrees for a moving walk 31 degrees for an escalator" "In a Ward-Leonard system, if all 3 contacts close what will happen? - CORRECT ANSWER The car run at full speed - 415" "What type of oil do you put in the machine? - CORRECT ANSWER Gear oil, non-detergent, single viscosity" "A 75 ohm resistor has blown, no replacement, how do you fix it? - CORRECT ANSWER 3 - 225 ohms in parallel . 3- 25 ohm resistors in series." "If a Rack and Pinion hoist is not plumb, level and square. What can happen? - CORRECT ANSWER Set the safeties" "What are extension tubes used for? - CORRECT ANSWER Necessary clearance for placement of concrete forms." "If a hoist motor is making noise, what is the problem? - CORRECT ANSWER To help prevent distortion to the building AC supply, INDUCTORS can be used on AC input of a solid state drive. Inductors can serve double duty, they operate as transformers, to match input voltage, or provide voltage isolation. As well as performing filtering on notch effect." "What is the area of a 10" plunger? - CORRECT ANSWER Pie x Radius Squared= Area 3.14x5x5=78.5" "The escape hutch opens in what direction? - CORRECT ANSWER From the outside of the car up, preventing people from getting on top of the car" "What drawing will show how many and location of fixtures? - CORRECT ANSWER The elevator abstract. Rails, lanterns, push buttons, etc. and quantity, color, material, etc" "You are working with eye bolts, where would you check for lifting capacity? - CORRECT ANSWER NEVER use eye bolts for hoisting" "You are installing the limit cam on the car and notice that the holes are not lining up. Where do you find the correct location for the cam? - CORRECT ANSWER The mechanical detail drawing" "You are on a call and find the pulley came off the pump motor and the set screw is missing, what kind of screw would you use to replace the set screw? - CORRECT ANSWER Cup screw" "You have to measure the outside of a pipe. What tool would you use? - CORRECT ANSWER Caliper Rule" "You are installing spring buffers on a 200 fpm car, what is the minimum buffer stroke? - CORRECT ANSWER 200 fpm= 4 inch Note: 100 fpm= 1 1/2 inch Note : 100 fpm- 150 fpm = 2 1/2 inch" "You are going to replace the disc on your grinder, what test should you do before using? - CORRECT ANSWER Ring test" "How often do electrical cords need to be checked for continuity? - CORRECT ANSWER Every 3 months" "The DBG is 6'6" using 15 lb rails with 1/4 shim on the brackets, what is DBB? - CORRECT ANSWER (2) 15 lb rails is 3 1/2 deep= 7" total. (2) 1/4" shims= 1/2" 6'6"+ 7 1/2 = 7 foot 1 1/2 inch" "Which of the following maintenance procedures addresses the issue of proper DC generator commutation? - CORRECT ANSWER Continued contact between brushes and commutator" "Customer is complaining that an older SCR drive powered elevator, is causing noise in the building power lines. What can help reduce the noise? - CORRECT ANSWER Isolation transformer is used to minimize electrical noise reflected to supply lines" "In a series circuit with a 10K ohm resistor and a 2mA current, what is voltage? - CORRECT ANSWER E= R x I= E = 10000 ohm x .002A= E =20v" "How would you connect an ohm-meter to check load resistance? - CORRECT ANSWER Black to common, Red to V, ohm switch at Ohm. No power, take one lead off, connect in parallel, analog needs to be zeroed" "Exciter voltage comes from what source? - CORRECT ANSWER Generator" "Youre pulling (15) #14 awg, (27) #16 awg, (57) # 18 awg wires. How many spares needed? - CORRECT ANSWER (2) # 14, (3) # 16, (6) #18 = 10% spares required" "You have (26) 16' 22 lb rails and (2) 8'22 lb rails, what is the total weight of the rails? - CORRECT ANSWER 27 rails x 16' x 22 lbs= 9504 lbs" "You need to replace an unmarked single phase transformer with primary voltage at 220 vac current at 5 amp. What size would you need to double it? Note: kVa sizing must be calculated from primary or secondary volt + amp info - CORRECT ANSWER 2.2 kVa" "You have attempted to start up a 3 phase AC motor and stalls then hums or growls? - CORRECT ANSWER If the rotor bar becomes loose at the ring connection, or if the rotor bar cracks, current cannot flow through the bar, and the entire rotor is disrupted, causing loud growl or humming sound" "Your fluke digital multimeter reads 440 vac, what value are you reading? - CORRECT ANSWER 440 vac RMS" "You have determined that the period of an oscillation that you can feel in the car is .5 seconds. What is the frequency of the oscillation? - CORRECT ANSWER 2 hz frequency from time or period F=1/T F=1/.5= 2hz" "Customer complains that elevator is having door problem at every floor. Where do you start trouble shooting? - CORRECT ANSWER The car doors" "Freight doors are binding because they are hanging out of square, what adjustments can you make? - CORRECT ANSWER Adjust door track chains" "You are about to start installing your duct run in the hoist way. What is the best method to give you the straightest line? - CORRECT ANSWER Using a plumb bob, snap the line, and measure off of the rail" "When installing multiple traveling cables, where is the first cable located? - CORRECT ANSWER First is closest to the rail" "2 controllers in a small machine room face each other, what is the minimum clearance between them? - CORRECT ANSWER 36 inches" "When installing travelers, what is the minimum length of vertical suspension at both ends before the loop starts? - CORRECT ANSWER 4 feet" "You attempt to adjust a new VV-VF door operator, but it operates in the wrong direction. How do you change the direction? - CORRECT ANSWER Change the phase sequence" "You receive a call that a center opening car is running with one door partially open, how is this possible? - CORRECT ANSWER The gate switch is activated by door drive, but the relating device has failed" "In order to properly bond an isolation platform, where should you connect your bonding straps? - CORRECT ANSWER From the platform to the car sling" "As a mechanic you are sent to install an escalator, what point of reference would you use to square the unit? - CORRECT ANSWER Column line" "Escalator demarcation lights are required by code for what reason? - CORRECT ANSWER Provides passengers a visual indication when entering and exiting the unit" "While adjusting a passenger elevator door operator with a permanent magnet dc motor, which operation would you perform to control the motor? - CORRECT ANSWER Speed and torque control is accomplished by varying armature current and voltage" "What dose ASME code specify regarding clearance between skirt panel and the side of the step tread? - CORRECT ANSWER Skirt board switches required at upper and lower ends. Gap no more than 3/16"" "After receiving an inspection report, one violation is door closing force. After checking you read 50 lb of door force, is this code? How do you make it code compliant? - CORRECT ANSWER Not code. Code is < 30 lb. To fix you need to adjust the torque/speed of door operator" "You momentarily actuate the motor starting relay, the direction of rotation is not correct, what can be done to change rotation direction? - CORRECT ANSWER Reverse any 2 leads of incoming motor phases" "Before you can move a piston on a hydro, what precautions must be taken? - CORRECT ANSWER Check the piston for debris and tightness of the head, make sure pit is clear" "You are preparing to hoist the car for cable installation, before doing this, what needs to be installed? - CORRECT ANSWER The governor cable" "While on service you observe the mechanical style safety edges on center opening doors bumping into each other, reopening the doors. Where do you need to look to repair this problem? - CORRECT ANSWER The safety edge retraction mechanism" "You are about to trouble shoot an elevator that is off, what print would help make it easier to trace the circuits? - CORRECT ANSWER Straight line diagram" "The fuses on a 3 phase input to DC direct drive are open, and the elevator will not run, what needs to be done to check for a shorted SCR? - CORRECT ANSWER Remove the SCR, connect + lead to anode, - lead to cathode, jumper between anode and gate .7v if good. Remove jumper and it should stay on, remove a lead should read infinite" "Troubleshooting a 3 input and gate, all inputs are high, but the gate output is low. What is the problem? - CORRECT ANSWER Faulty gate. Truth table says output should be high." "Youre going to a trouble call and you find that the machine room has 2 inches of water in it, what is the first thing you do? - CORRECT ANSWER Leave the machine room" "You find a blown fuse in the DC circuit feeding the door motor. When picking a replacement fuse what should you do? - CORRECT ANSWER Compare the blown fuse to the fuse rating in the straight line diagram" "A DC door motor supplied from a 3 phase rectifier runs slow. The DC voltage that is normally 320 is 220. What should you do? - CORRECT ANSWER Check the fuse feeding the AC rectifier" "There is a call that a traction elevator is stuck in the overhead. In order to get the car down, what circuits do you need to jump out? - CORRECT ANSWER The primary safety circuits" "You just pulled multi-cables down the hoistway of a high rise. How should you provide strain relief for the cables? - CORRECT ANSWER Required every 100'. Begin at the lowest and work upwards to adjust tension" "Installing horizontal sliding doors with guides in each door panel, how far must each guides engage the sill gauge? - CORRECT ANSWER 1/4 inch" "Your supervisor informs you to change software on a hydro microprocessor board. The software is a 24 pin DIP package. To properly orientate the new chip on the board, what must you do? - CORRECT ANSWER Verify that the notch on the dip chip matches the notch on the board" "You need to speed up an AC motor that has a fixed number of poles. How can you speed it up using the RPM formula? - CORRECT ANSWER Change the frequency. RPM= 60 x F/ P/2" "You have finished digging a hole hydro, the jack is not on site. What must the hole have on it before you leave? - CORRECT ANSWER A welded cover" "A CWT frame weighs 10,000 lbs and needs to be increased by 5%. What is the new weight of the frame? - CORRECT ANSWER 10,500 lbs" "You have 32' of rise in scaffolding and are using a 3' x 5' base. Where are the tie offs? - CORRECT ANSWER 1st at 12' and cannot be more than 26' apart vertically 30' apart horizontally" "How is a step level switch on an escalator reset? - CORRECT ANSWER Manually" "What is the law of power? - CORRECT ANSWER P= E x I" "What is the maximum voltage drop that can occur across a 500 watt resistor carrying 2 amps of current? - CORRECT ANSWER E= P/I E= 500 watt/ 2 amps= 250 volts" "While testing for a locked rotor condition, what could happen if the testing was carried on for too long? - CORRECT ANSWER Damage to the stator or rotor" "What is needed to coordinate the movement and to dispatch hall calls? - CORRECT ANSWER A group controller" "Where is weight added on a freight door for balancing? - CORRECT ANSWER On the top" "What door is heavier on bi-parting freight doors? - CORRECT ANSWER The lower door because of the tucking sill" "What happens to the break when contact E opens? - CORRECT ANSWER Inserts more break resistance in the circuit, reducing the value of the break current. More resistance to hold the coil up and release current draw." "In a circuit with capacitance of 5 mf 120v and 200K ohm, how long to fully charge? - CORRECT ANSWER 5TC" 1" is equal to ______ cm - CORRECT ANSWER 2.54 cm" "1" is equal to ______mm - CORRECT ANSWER 25.4 mm" "Circumference Formula - CORRECT ANSWER C = 2πr" "Area of a circle - CORRECT ANSWER A=πr²" "Pressure formula - CORRECT ANSWER Pressure = Force/Area or P = F/A" "RPM formula - CORRECT ANSWER 60 x F /( N/2) where F(frequency is Hz) N is the number of poles Example: what is the rotating speed of a three phase 30 HZ 6 pole motor? 60 x 30hz = •/• 3 poles = 600RPM" "Time constant formula in resistive capacitive circuit - CORRECT ANSWER T = RC where T is time in sec. R is Resistance and C is Capacitance which is probably is in microfarads" "Time constant formula in a resistive inductive circuit - CORRECT ANSWER T=L/R Where T is time in seconds, L is inductance in henries and R is reaistance" "formula for frequency - CORRECT ANSWER f=1/T where T is time(period) in seconds" "Effective Value (RMS) formula if given peak - CORRECT ANSWER 0.707 x peak value" "Average Value Formula if given peak - CORRECT ANSWER .636 x peak" "Peak value if given average - CORRECT ANSWER Peak= AVG/0.636 OR Peak= AVG x 1.57" "peak to peak value - CORRECT ANSWER 2x peak value" "Peak value when given effective or RMS - CORRECT ANSWER Peak= 1.414 x Effective or RMS" "Peak to peak value when given RMS or effective - CORRECT ANSWER Peak to Peak= 2.828x RMS" "Formula for unequal resistances in a parallel circuit - CORRECT ANSWER R= 1/ 1/r1+ 1/r2........." "Formula for resistance in series parallel circuit - CORRECT ANSWER Add the resistor in series to the total resistance of resistors in parallel" "LULA Max Rise - CORRECT ANSWER 25 ft." "LULA Max Speed - CORRECT ANSWER 30 ft. Min" "LULA Max Capacity - CORRECT ANSWER 1400 Lbs." "LULA Max Platform Area - CORRECT ANSWER 18 sq ft" "Residential Elevator Max Rise - CORRECT ANSWER 50 ft." "Residential Elevator Max Speed - CORRECT ANSWER 40 ft. Min" "Residential Elevator max capacity - CORRECT ANSWER 940 lbs." "Residential Elevator Max Platform Area - CORRECT ANSWER 15 sq. Feet" "Lula Permanent Mechanical holding device Measurement - CORRECT ANSWER 35"-79" above pit floors. 24" minimum above bottom sill" "Residential elevator pit enclosure height - CORRECT ANSWER 84"" "Lula traction rope size and aircraft cable size - CORRECT ANSWER 30x diameter for traction 21x diameter for aircraft cable" "Hydraulic LULA Overspeed valve Tripping speed - CORRECT ANSWER 110%-140% Roped Hydro LULA is required to have safeties and a governor also" "Residential Elevator Governor Trip Speed - CORRECT ANSWER No more than 75 ft min" "Lula door type - CORRECT ANSWER Horizontal slide, accordion and bi fold" "Residential elevator door type - CORRECT ANSWER Allow perforated doors 66" high and can reject 3" diameter ball" "Residential Private lift escape hatch requirement - CORRECT ANSWER Escape hatch is required if there is no manual operation" "Private residence residential locked door if no closed hoistway measurement - CORRECT ANSWER Car door must be locked automatically until car is within 6" of floor" "Max platform size of dumbwaiter - CORRECT ANSWER 9 square ft." "Dumbwaiter Max cab height - CORRECT ANSWER 4'" "Max door height Dumbwaiter - CORRECT ANSWER 54"" "Max clearance between dumbwaiter cab and hoistway enclosure - CORRECT ANSWER No less than 1/2"" "Single phase full wave rectifier output equation - CORRECT ANSWER .9x input voltage" "3 phase full wave rectifier output voltage equation - CORRECT ANSWER 1.33x the input voltage" "Frequency (Hz) formula - CORRECT ANSWER Frequency= RPMx N(number of poles/ 120)" "RPM to FPM conversion - CORRECT ANSWER (Diameter (in inches) x PIE/12) x RPM = Ft/Min" "Equation to find inductive reactance - CORRECT ANSWER 2piefL" "Transformer ratio - CORRECT ANSWER Ep/Es=Np/Ns" "Transformer Efficiency Equation - CORRECT ANSWER Ep/Es=Is/Ip" "Pit Ladder Regulations - CORRECT ANSWER If pit extends more than 35" a pit ladder must be present. Ladder must extend 48" above sill Ladder rungs must be at least 16" wide" "Pit stop switch deep pit - CORRECT ANSWER Greater than 67" (deep pit) you need a second stop switch 47" above pit floor" "Sill guard and toe guard measurements - CORRECT ANSWER Leveling zone plus 3"" "Low voltage motor connection 9 lead - CORRECT ANSWER L1 T1-T7, L2 T2-T8, L3 T3-T9 T4,T5,T6 wire nutted together" "High voltage motor wiring 9 lead - CORRECT ANSWER L1-T1, L2-T2, L3-T3 T7-T4, T8-T5, T9-T6" "Minimum six for escape hatch - CORRECT ANSWER 40 square inches" "Max gap leading edges of center opening doors - CORRECT ANSWER 1/2"" "Overlap minimum for horizontal sliding doors - CORRECT ANSWER 5/8"" "Vertical distance from door panel to sill - CORRECT ANSWER 3/8"" "Formula for 2 unequal resistances in parallel - CORRECT ANSWER R1xr2/r1+r2" E=__ - CORRECT ANSWER IR" "P=__ - CORRECT ANSWER IE" "Pie r^2 = - CORRECT ANSWER Area of a circle" "231 in^3 /____ - CORRECT ANSWER gal." "25.4mm/__ - CORRECT ANSWER in." "2.2kg/ - CORRECT ANSWER lb" "3 phase rectifier output = - CORRECT ANSWER 1.33 x input" "single phase output = - CORRECT ANSWER 0.9 x input" "RMS (effective voltage) = - CORRECT ANSWER 0.707 (PEAK V)" "TC = - CORRECT ANSWER R x C (5)???" "RPM = - CORRECT ANSWER 60 (frequency) / (poles/2)" "door overlap minimum = - CORRECT ANSWER 5/8" min" "door gaps maximum = - CORRECT ANSWER 3/8" max" "Gibs minimum = - CORRECT ANSWER 1/4" min" "Gate Switch maximum = - CORRECT ANSWER 2"" "Passenger Sill to Sill ____ to ______" - CORRECT ANSWER 1/2 to 1-1/2"" "Platform Lift Sill ____ to _____" - CORRECT ANSWER 3/8" to 3/4"" "Moving Walk maximum = - CORRECT ANSWER 12 degree max" "Governors (Car Trip Speed =______ & Overspeed Switch =______) - CORRECT ANSWER Car trip speed 15-20% greater than contract speed. Overspeed Switch less than or equal to 90-95% of trip speed" "CWT (____%) - CORRECT ANSWER Up to 10% greater than car trip speed" “A contractor wants to raise the car speed from 100FPM to 125FPM. It currently has a 12" sheave. What size sheave is required? - CORRECT ANSWER 15" ----Diam = 12, 12"/4=3, 25FPM=3in : 100FPM + 25FPM = 12"+3" =15"" “An MOV (metal oxide varistor) burns out. You should replace it, but cannot read the Voltage or resistance. What should you do? - CORRECT ANSWER Replace it with a larger MOV. (630)" “On a Ward-Leonard circuit, the brake is set, but the motor is trying to slip through the break. What circuit is the issue? - CORRECT ANSWER Suicide Circuit. (425)" “You have an old DC motor and you are adding an SCR Drive. What do you do with the interpoles? - CORRECT ANSWER Leave the interpoles alone. (425). “NOTE: When adding the SCR Drive to the generator, the series loop is removed, as are the 3 resistors. Everything else stays the same." “A hydro runs up with no load, but does not run up with a full load. What is the issue? - CORRECT ANSWER The relief valve is set too low. (805)." “Runby for a 1:1 car hits the CWT buffer 4" below the top landing. The CWT runby should be set at 18". How much should the ropes be shortened? - CORRECT ANSWER 22" and for a 2:1 with the same issue --> 44"" “You need to work on a freight door retiring cam. You LOTO the mainline disconnect, but there is still power to the cam. What circuit is still hot? - CORRECT ANSWER Mainline disconnect. (535) (3.2.6)" “The contractor requests that the vertical center of the rack and pinion hoist be moved. How is this accomplished? - CORRECT ANSWER Adjust tie downs/ wall ties (850)." "Working pressure on a Hydro is a 400 psi. What is the correct relief valve setting? - CORRECT ANSWER 600 psi max. (805), 400psi x 150% = 600psi" "What must first be installed on a false car before operation? - CORRECT ANSWER Safeties (110) note: handrails & buffers also required" "There is a slight arcing at the brush and commutator. What actions must be taken? - CORRECT ANSWER None. (430) Note: Heavy arcing due to light brush pressure, mechanical wear indicates heavy brush pressure." "If rigging gear is roped 3:1 and a beam clamp is used to lift a 6000 lb load. What is the beam capacity requirement? - CORRECT ANSWER 18000 lb. (210). note: When rigging all blocks, rope, and clamps will be EQUAL to the lowest load rating capacity." "How much resistance is normally measured across a normally closed switch? - CORRECT ANSWER 1.2 ohms" "A car traveling in the hoistway always stops at the same point and blows a fuse. What is the problem? - CORRECT ANSWER Traveling cable has a cut or short." "How is a class I (yearly) buffer test performed? - CORRECT ANSWER At slow speed and the buffer must return in 60 sec. (555) NOTE: 5 yr Test (class 5) for car is rated load and speed and buffer returns in 90 sec., CWT is empty car at rated speed and buffer must return in 90 sec." "How many strain supports are required on a 350 foot raceway? - CORRECT ANSWER 4, 1 for every 100ft." "How is stainless steel drilled out? - CORRECT ANSWER Slow speed constant pressure (205)" "What are the required amounts of clips required for wedge shackles and what is their spacings? - CORRECT ANSWER At least 2, with the first being 4 times the diameter of the rope from the top of shackle max and the second 8 times the diameter of the rope from the first." "A 300ohm resistor burns out. You don't have a 300ohm resistor. What can you use to make up the resistor? - CORRECT ANSWER TWO 600ohm resistors in parallel, (600) the resistance is the half of the highest rating in a parallel circuit. As is THREE 225ohm resistorsin parallel equal 75ohms." "When cutting laminated panels, which direction should the finished side face? - CORRECT ANSWER Finished face of the material should face the cutting edge of the tool (255). The blade has a tendency to burr the back side." "A 480 vac step down 240 vac transformer is connected to a 3 phase rectifier. What will be the output? - CORRECT ANSWER 320 vdc" "How do you cut a finished floor material? - CORRECT ANSWER Cutting blade away from the finish (255)" "Car is loaded with 125% and sinks. Why? - CORRECT ANSWER Slipped through the brake" " If you find a broken or missing barricade, what do you do? - CORRECT ANSWER Write up a formal inspection request." "What are the consequences of a misaligned rack and pinion hoist joint? - CORRECT ANSWER Broken gear teeth (850)" "If a dumbwaiter has 9 sq ft in area, 4 ft high and the rated capacity is 13.9 lb/ft3, what is the total capacity? - CORRECT ANSWER 500 lb/ft 3 (3.2.9) NOTE: The area of the dumbwaiter is 9 sq ft max and is 4ft high, multiply that by 13.9" " You must enter a pit where toxic fumes are present. How do you proceed? - CORRECT ANSWER Follow proper procedure. NOTE: Confined space entry procedures now are guided by OSHA for pit entry." "When changing a 1:1 car rated at 600 FPM and 2000 lb capacity to a 2:1, what will the new ratings be? - CORRECT ANSWER 300 FPM and 4000lb capacity NOTE: Halves the speed and doubles the capacity." "A vertical platform lift has a clearance of 1 in. How much will it have to be moved to meet code? - CORRECT ANSWER 1/4 in." "A car weighs 2500 lbs with a capacity of 2500 lbs, the CWT is weighted at 40%. How much is the motor lifting at 100% load? - CORRECT ANSWER 1500 lbs. 2500x40%= 1000 lbs 2500+1000 = 3500 = 1500 lbs" "How must oxygen and acetylene tanks be stored? - CORRECT ANSWER Must be stored vertically 12 ft apart, or on a cart w/ a 1/2 hr fire rated barrier between them" "What does the code state about sill to sill distance? - CORRECT ANSWER 3/4" to 1 1/2" spacing" " If the sill to sill distance is 1 3/4". What will bring it into code spec? - CORRECT ANSWER -.5"" "When drilling a jack hole in sandy conditions what type of drill rig is required? - CORRECT ANSWER Rotary or Auger bit (805) NOTE: Rotary - compacted soil, percussion - rocky conditions, and percussion rotary - solid rock" "A customer does not want an escape hatch on his residential elevator. Under what conditions is this legal? - CORRECT ANSWER Manual operation must be provided (850)" "You wired down direction and final limit switches. Now the car only runs up. What is the problem? - CORRECT ANSWER You wired the down direction limit wrong." "What are the effects of one rope sitting deeper in the sheave groove? - CORRECT ANSWER The rope wears out and breaks faster (250)" "There is noise coming from a freight door. The sheave is moving but the chain is not. What is the problem? - CORRECT ANSWER Oil on the chain" "What is the effect when you change a sling angle from 60 deg. to 30 deg. when hoisting and rigging? - CORRECT ANSWER More tension, less capacity" "How many points of contact must be maintained on a ladder? - CORRECT ANSWER 3 points at all times." "What is the conversion formula when measuring in to mm? - CORRECT ANSWER 25.4 in to cm 2.54" "You open a dumbwaiter access panel and it still runs. What is the cause? - CORRECT ANSWER Pit access switch is not working (550)" "You perform a static load test with the pit valve in the closed position. The car sinks 6" in 15 min. What is the cause? - CORRECT ANSWER Cylinder leak (520)" "Where should you point a fire extinguisher when putting out a fire? - CORRECT ANSWER at the base of the fire." "A car with a selective collective controller is moving to the lobby to pick up a call. An up call is put in at the second floor. What happens? - CORRECT ANSWER Call is bypasse til the car is moving in the up direction." "During construction you land an escalator, but it is 10mm too low. What is wrong? - CORRECT ANSWER Pit is too deep or column mark is off (825)" "During construction the omega CWT rails have been damaged. Why? - CORRECT ANSWER Overtightened from rail to bracket (215)" "How do you handle a coworker who shows up to work intoxicated? - CORRECT ANSWER Speak to the MIC (Foreman), union BA, or call your supervisor" "How do you attach brackets to brick? - CORRECT ANSWER Inserts 1/4" back from brick" "What is a selective collective control system? - CORRECT ANSWER A controller that allows an elevator to bypass calls in the opposite direction of travel" "Given a generator runs at 600 RPM and has 4 poles, what is the output frequency? - CORRECT ANSWER 600/6 sec = 10 x 20 = 20hz" "If an XOR gat was connected to a NOR gate and attached to an AND gate with a high output, what must the input be at the XOR gate A & B? - CORRECT ANSWER BOTH must be high." "Using binary logic, what DIP switches need to be in the on position of a 128 bit 30 sec timer set for 150%? - CORRECT ANSWER 1,3,4,6=45 sec NOTE: 1 2 3 4 5 6 7 8 1 2 4 8 16 32 64 128" "How many traveling wires are required for the following circuit? Exclude spares. BCE-----SPI/BCD-----SP2/BCD-----SP4/BCD----UR1/BCE-----UR2/BCD-----DR1/CRE-----DR2/GRD - CORRECT ANSWER 11 +120v___________o---- o__________R2____________A__________R1__________GRD" "There is voltage at the switch but none at point A. What is wrong? - CORRECT ANSWER Either open R1 or R2 (635)" "What does the square with a darkened upper triangle represent? **USE PRINT 730 TO SOLVE** - CORRECT ANSWER DC Relay NOTE: Square with lower triangle = latching relay, and square with arrow through it = timer" "The close door limit switch is not working. You have power from Term 35 to Term 8, no power from Term 1 to S2. Why? - CORRECT ANSWER Door limit switch malfunction" "Car is running normally but the buzzer will not shut off. Why? - CORRECT ANSWER EHP 3 to 2 shorted" "Relay STR has voltage, TRU has voltage, RU has no voltage. Why? - CORRECT ANSWER TRU 11 9/8" "2nd floor PI illuminates then quickly extinguishes. Why? - CORRECT ANSWER XI 4 and 6" "Car will not travel to 2nd floor without a 3rd floor call, and will not go down from 3rd without a 2nd floor call. What is the problem? - CORRECT ANSWER 2FI4/6" "Using print #3, why wont the motor start? - CORRECT ANSWER MOL 1 T/B" "The step level switch on an escalator has been activated. Where do you check? - CORRECT ANSWER Both top and bottom (825). Step switches are manual reset switches. They are activated if the step drops 1/4" or more." "You get a trouble call for in-op freight door. What must you do first before you begin work? - CORRECT ANSWER Block the door open" "You get shocked when you attempt to move a car using a temp button for the first time. Why? - CORRECT ANSWER You forgot to hook up a ground wire (810)" "A motor needs a sleeve bearing replaced. What type of bearing will you need? - CORRECT ANSWER Friction bearing (420)" "With a 7'0" platform your inside cab wall clearance is 6'8". What is the thickness or take up of the walls? - CORRECT ANSWER 2" thick" "You notice rouging on the governor and tail sheave. What should you do? - CORRECT ANSWER Check the rope diameter (250)" "Car doors are dragging on the sill. How high should they be raised to be code compliant. - CORRECT ANSWER 1/4"" "What type of safeties will a 300FPM car have? - CORRECT ANSWER Wedge clamps" "Vertical platform stopping devices? - CORRECT ANSWER 2 switches, 15 lb max pressure" "What type of oil do you need for sleeve bearings? - CORRECT ANSWER SAE 20/20w (430)" "How do you test the safety circuit? - CORRECT ANSWER You test all switches independently" "What is the maximum moving walk incline? - CORRECT ANSWER 12 deg. (830)" "How does GFI work? - CORRECT ANSWER It detects an imbalance between the hot and neutral wires" "Who is required to provide you with the MSDS or SDS of a solvent you're using to clean rails? - CORRECT ANSWER Your employer (105)" "How do emergency doors swing? - CORRECT ANSWER outward" "You have an EMT run with three 90's and a saddle bend. What will be required? - CORRECT ANSWER An immediate pull box (505)" "What is the max distance between the vertical raceway supports? - CORRECT ANSWER 15 ft" "What is the smallest wire permitted in an elevator install? - CORRECT ANSWER #24 gage" "What is the distance between strain bars? - CORRECT ANSWER 100 ft." "In what section of NEC is elevator, escalator, dumbwaiters, and moving walks found? - CORRECT ANSWER 620" "What is the max length of a motor - generator leads can be to the controller without a raceway? - CORRECT ANSWER 6 ft" "What is the smallest wire allowed in a traveling cable? - CORRECT ANSWER #20 gage" "What is the ratio between diameter and loop of the traveler? - CORRECT ANSWER 30 times" "What are the most common features of load weigh? - CORRECT ANSWER To control the generator field and inside express operation" "What is the required by ASME on the car top? - CORRECT ANSWER Inspection station, light, and a duplex receptacle" "At what distance from closed does the gate switch operate? - CORRECT ANSWER NOTE: Use your own imagination. Wife does not know this one and it was left blank." "What is the min of spares should be pulled? - CORRECT ANSWER 10%" "At what speed should the governor switch contact be set to open? - CORRECT ANSWER 90-95% of the governor tripping speed" "If the DC output of a three phase rectifier is lower then specified, what is the problem? - CORRECT ANSWER On input phase is missing" "What is the overlap min on 2 and 3 speed doors? - CORRECT ANSWER 5/8"" "What is the max clearance between door and sill - CORRECT ANSWER 3/8" Note: 1/4 "min - 3/8" max" "What is the max gap of the leading edges of center opening doors? - CORRECT ANSWER 1/2"" " What is the min gib (??) to sill engagement? - CORRECT ANSWER 1/4"" " What is the min gap sill to sill? - CORRECT ANSWER 1/4"" "What is the max gap sill to sill? - CORRECT ANSWER 1/2"" "1 gal equals how many cubic in.? - CORRECT ANSWER 231" "A force of 500 lbs is applied to a plunger with an area of 25 sq in, what is the system pressure? - CORRECT ANSWER 200 psi. 5000 lbs/25 sq in = 200 psi" " How many gallons needed to run a 4" plunger 25 ft? - CORRECT ANSWER 16.3 gal. NOTE: V= A(H)" "What best describes the operation of typical hydro block valve with an elevator parked at the lobby? - CORRECT ANSWER The DWN valve is closed, check valve closed, and the UP valve open" "What is the definition of working pressure? - CORRECT ANSWER Full load up pressure" "What is the conversion from kg to lbs? - CORRECT ANSWER kg (2.2) = lbs" "A MOV (Metal Oxide Varistor) burns out. You replace it, but cannot read voltage or resistance. What should you do? - CORRECT ANSWER Replace it with a larger MOV - 630" "On a Ward-Leonard circuit the brake is set, but the motor is trying to slip through the brake. What is the issue? - CORRECT ANSWER Suicide Circuit - 425" "You have an old DC motor and are adding an SCR drive, what do you do to the interpoles? - CORRECT ANSWER Leave the interpoles alone. When adding a SCR drive to the generator, the series loop is removed, as are the 3 resistors. Everything else remains the same" "A hydro runs up with no load but will not run with a full load. What is the issue? - CORRECT ANSWER The relief valve is set too low - 815" "Runby for a 1:1 hits the CWT buffer 4" below the top landing. CWT runby should be set at 18". How much should the ropes be shortened? - CORRECT ANSWER 22" - 235" "You need to work on a freight door retiring cam, you LOTO the main line but there is still power on the cam. What circuit is still hot? - CORRECT ANSWER Door Operator disconnect -535" "The contractor requests that the vertical center of a Rack and Pinion hoist be moved. How do you do this? - CORRECT ANSWER Adjust tie downs and wall ties - 850" "Working pressure on a Hydro is 400 PSI. What is the maximum relief valve setting? - CORRECT ANSWER 400 x 150%= 600 PSI - 815" "What must be installed on a false care before operation? - CORRECT ANSWER Spring Loaded safeties - 110" "A car is loaded with 125% and sinks, why? - CORRECT ANSWER Slipping through the brake" "IF you find a broken or missing barricade what should you do? - CORRECT ANSWER Write up a formal inspection request" "What are the consequences of misaligned joints on a rack and pinion? - CORRECT ANSWER Broken gear teeth. CWT derailment. Excessive wear/crease the surface of the tube. - 850" "A dumbwaiter is 9 sqft in area, 4 ft in height, and capacity is 13.9lb/ft. What is the total capacity? - CORRECT ANSWER 9 X 4 x 13.9= 500lbs Max Capacity" "You must enter a pit with a toxic atmosphere, how do you proceed? - CORRECT ANSWER Follow proper OSHA procedure with proper training and PPE - 133" "When changing a 1:1 car rated at 600fpm and 2,000lb capacity to a 2:1, what are the new ratings? - CORRECT ANSWER 300 fpm with 4000lbs capacity. Half the speed and double the capacity." "A vertical platform lift has a clearance of 1 inch. How much will it have to move to meet code? - CORRECT ANSWER Move in 1/4 inch. Code is 3/4 in" "A car weighs 2500lbs with a capacity of 2500lbs, The CWT is weighted 40% , how much is the motor lifting when the car is fully loaded? - CORRECT ANSWER 2500 (CAR) + 1000 ( 40%)= 3500lbs = 1500lbs lifted by the machine - 240" "How must Oxygen and Acetylene tanks be stored? - CORRECT ANSWER Vertically, 12 feet apart, or on a cart with a ½ hour fire barrier between them" "What is code for sill to sill distance? - CORRECT ANSWER Minimum- 1/2 in Maximum- 1-1/2 in - 525" "When drilling a jack hole in sandy conditions what type of drill rig is required? - CORRECT ANSWER Rotary or Auger bit Note: Rotary=soft Percussion= rocky Combo= solid - 810" "A customer does not want an escape hatch on a residential elevator, under what condition is this legal? - CORRECT ANSWER Manual operation must be provided - 840" "Your helper wired the down direction and final limit switches, now the car will only travel up, what is the issue? - CORRECT ANSWER The down direction limit was wired incorrectly" "What are the effects of one rope sitting deeper in the sheave groove? - CORRECT ANSWER The rope wears out and the breaks faster - 245" "There is a noise coming from a freight door. The sheave is moving, but the chain is not. What is the problem? - CORRECT ANSWER Oil on the drive chain - 535" "What is the effect when you change a sling angle from 60 degrees to 30 degrees? - CORRECT ANSWER More tension, less capacity. Any angle 30 degrees or less is dangerous - 100" "During construction you land an escalator, but it is 10 mm low, what is wrong? - CORRECT ANSWER The pit is too deep or column MARK is off - 825" "During construction the Omega CWT rails have been damaged, what happened? - CORRECT ANSWER The omegas were over tightened - 215" "How do you handle a co worker who shows up drunk? - CORRECT ANSWER Speak with MIC, Call BA, Call supervisor - 100" "How do you attach brackets to brick? - CORRECT ANSWER Inserts set back a ¼ inch into the block. Code could call for through bolts" "What is Selective Collective System? - CORRECT ANSWER Controller that allows an elevator to bypass calls in the opposite direction of travel. - 740" "Generator runs at 600 rpm and has 4 poles, what is the output frequency? - CORRECT ANSWER (RPM/60sec) x ( # of poles/2) (600 rpm/60sec) x (4/2)= 20hz" "If a XOR gate was connected to a NOR gate and attached to an AND gate with a High output. What is input of the XOR gate A&B? - CORRECT ANSWER Both must be high - 645" "Using BINARY logic, what DIP switches must be on for a 128 bit 30 second timer set at 150% - CORRECT ANSWER Note: 1 2 3 4 5 6 7 8 = on or off Note: 1 2 4 8 16 32 64 128 = number of seconds Note: 32 + 8 + 4 + 1= 45 seconds 1, 3,4,5,6= 45 seconds" "How many wires are needed for the following circuit? Exclude Spares BCE---SPI/BCD---SP2/BCD---SP4/BCD-BCE---UR2/BCE---DR1/CRE---DR2/GRD - CORRECT ANSWER 11 wires no need for duplicate wires" "How must a 9 lead 480/240 motor be wired for High Voltage? - CORRECT ANSWER L1 ( 1,7) L2 ( 2,8) L3 (3,9) wire nut together (4,5,6)" "There is voltage at the switch, but none at A, what is wrong? - CORRECT ANSWER Open at R2 or R1 - 635" "What does a square with a darkened upper triangle represent? - CORRECT ANSWER DC Relay Note: Square with a darkened lower triangle = latching relay Note: square with arrow through it = timer relay - 730" "The close door limit switch is not working, you have power at points 35-8, no voltage at 1-S2 why? - CORRECT ANSWER Door limit switch malfunction- *Sheet 1 730 prints*" "Car is running normally, but the Fire Service buzzer will not shut off, Why? - CORRECT ANSWER EHP 3-2 shorted *Sheet 2 730 prints*" "Relay STR has voltage, TRU has voltage, RU no voltage, why? - CORRECT ANSWER TRU 9/8 open * Sheet 3 730 prints*" "2nd floor PI lights then quickly shuts off, why? - CORRECT ANSWER X1 4-6 * Sheet 2 print 730 *" "Car will not travel to 2 without a 3 call, and will not go down to 3 without a 2 call? - CORRECT ANSWER 2 F1 4-6 * Sheet 1 print 730*" "Using sheet 3, why wont the motor start? - CORRECT ANSWER MOL1 T/B * Sheet 3 print 730*" "The step level switch on an escalator has been tripped, where do you check? - CORRECT ANSWER The upper and lower truss assemblies, trips if the step sags more than 1/8 inch. - 825" "You get a trouble call for an inoperable freight door. What must you do before you begin work? - CORRECT ANSWER Block open the door, LOTO, and barricades - 540" "You get shocked when attempting to move a car with a temp run bug, what is the problem? - CORRECT ANSWER Ground wire not hooked up - 810" "A Motor needs a sleeve bearing replaced, what type of bearing do you need? - CORRECT ANSWER Friction bearing AKA sleeve bearing - 420" "What are the most common features of a load weigh? - CORRECT ANSWER Control generator field and inside express operation - 515" "What is required by ASME on the car top? - CORRECT ANSWER Inspection station, Light, and Duplex outlet. - 515" "At what distance from closed does the gate switch operate? - CORRECT ANSWER 2 inches - 515" "What is the minimum number of spares that should be pulled? - CORRECT ANSWER 10 % - 515" "At what speed should the governor switch contact be set to open? - CORRECT ANSWER Electrical 90% of tripping speed for 150-500 fpm / 95% of 500 + fpm" "If the DC output of a 3 phase rectifier is lower than specified, what is the problem? - CORRECT ANSWER AC fuse is blown. 1 Input phase is missing - 715" "What is the overlap minimum on 2 and 3 speed doors? - CORRECT ANSWER Horizontal- 1/2 inch Vertical - 1 inch" "What are minimum and maximum clearance between sill and car doors? - CORRECT ANSWER 1/4 inch minimum 3/8 inch maximum - 530" "What is maximum leading edges for center opening doors? - CORRECT ANSWER 1/2 inch - 530" "What is minimum sill to gib engagement? - CORRECT ANSWER 1/4 inch - 530" "What is minimum and maximum sill to sill gap? - CORRECT ANSWER Minimum- 1/2 inch Maximum- 1-1/2 inch - 525" "1 gallon equals how many cubic feet? - CORRECT ANSWER 231 -815" "How many gallons are need to run a 6" plunger 30'? - CORRECT ANSWER Area= 3.14 x R2 = 3.14 x6=18.84 Height= (12"x30')=360" Volume= Area x Height= 18.84 x 360"=6782.4" "A force of 5,000lbs is applied to a plunger with an area of 25 sq in. What is the system pressure? - CORRECT ANSWER Pressure= Force/ area Area= Force/pressure 5000 lbs/25 sqin= 200 psi - 815" "What best describes the operation of a typical hydro block valve with elevator parked at the lobby? - CORRECT ANSWER Down valve: Closed Check valve: Closed Up Valve: open" "What is the definition of working pressure? - CORRECT ANSWER Fully loaded to capacity, Full speed running up - 815" "What is the conversion for kg to pounds? - CORRECT ANSWER 1 kg = 2.205 lbs" "On a geared machine the worm and worm gear are made out of what materials? - CORRECT ANSWER Steel and Bronze" "You have to order P.I. for a 12 stop building with 3 cars. 3 floors do not have P.I. What is the total number of P.I. you need to order? - CORRECT ANSWER 12x3= 36 floors 3 floors with no P.I.=9 36-9 =27 P.I. needed" "If an elevator travels 1760 rpm @60 hz, how many hz needed to run at 600 fpm? - CORRECT ANSWER 20 hz" "You see a saw tooth wave form when using an oscilloscope out of the encoder, is that good? - CORRECT ANSWER No" "What are the hand signals for crane operation? - CORRECT ANSWER Thumbs out= Boom out, Thumbs in= Boom in; Thumb up= Boom up, Thumb down=Boom down; Finger up clockwise= Hoist up, Finger down counterclockwise= Hoist down; Arm out= Stop" "You are working on a MOD and have to move the controller to 30 feet farther away, you notice voltage drop, what can be done to increase voltage? - CORRECT ANSWER Use a larger gauge wire" "What is the weight of 15 full 16' rails and 2-8' normal rails? - CORRECT ANSWER 16 x 16' x 15 lbs= 3840 lbs" "What is an acceptable substitute for the top rail of a barricade? - CORRECT ANSWER 1/4 inch thick wire rope" "What is the proper way to test incoming voltage? - CORRECT ANSWER 3 phase AC using digital meter: L1-L2, L1-L3, L2-L3 Hydro at pump starter. Traction at L1, L2, L3" "When replacing a PCB in a controller what precautions must be taken? - CORRECT ANSWER Use a grounding wrist strap, and never remove anything with the power on" "Who gives you a right to a safe work space? - CORRECT ANSWER OSHA" "On an ANNUAL static load test, the car drifts down 15" in 10 minutes. There is no visible oil in the pit, where is the leak coming from? - CORRECT ANSWER Underground. Annual static test required for unexposed cylinders" "What training must be done before you can enter a pit that has been classified as a confined space? - CORRECT ANSWER Confined space entrant training" "Traction and Hydraulic machines have many hazards, what is most dangerous? - CORRECT ANSWER Rotating equipment" "You are installing a machine and sheave, where would machine and secondary sheaves be aligned? - CORRECT ANSWER In the center of the rail measurements" "You are testing an elevator with a rated speed of 500 fpm. What is the minimum speed the safeties should set at? - CORRECT ANSWER Mechanical: 115% x 500= 575 fpm Electrical: 90% x 575= 517.5 fpm" "What is one of the most dangerous hazards in the trade and most obvious for us? - CORRECT ANSWER Falls" "You are installing machines, governors, and generators, and need to know the location where it needs to be installed. Where would you find the information? - CORRECT ANSWER The machine room plan view" "What is the minimum breaking strength of a wire rope used as life safety? - CORRECT ANSWER 5,000 pounds" "What is known as the silent killer? - CORRECT ANSWER CTW" "You go to a trouble call and the building owner keeps asking when the car will be back up and if you can take any short cuts to get it up faster. what is your response? - CORRECT ANSWER Give a reasonable response on time and safety factors. If that doesnt work he can **** off" "You are preparing to replace a resistor on an out of service car. What is the 1st thing to do? - CORRECT ANSWER Make sure it is LOTO and verify no voltage" "What are 3 major factors in hydraulic pit maintenance? - CORRECT ANSWER Oil, tripping hazards, electricity" "What is the tolerance for 3/8 at .003? - CORRECT ANSWER .372- .378 bilateral= 2 direction unilateral= 1 direction" "You are installing push buttons using snake eye screws. What type of screwdriver? - CORRECT ANSWER Tamper proof" "How does OSHA classify a competent person? - CORRECT ANSWER One who is capable of identifying existing and potential hazards, and who has authorization to take prompt, corrective measurements" "Car weighs 7,000 lbs with a capacity of 3,500 lbs. What does the CWT weight? - CORRECT ANSWER 3,500 lbsx 40%= 1400 lbs 7000 lbs + 1400 lbs= 8400 lbs" "You are stacking rails in a single hydro hoist way, with a rise of 48' how many rails will you need? - CORRECT ANSWER 48'/ 16' = 3 rails per side 3 x2 sides= 6 rails" "Installing a 3,000 lb capacity car, how much load will the break stop and hold? - CORRECT ANSWER 125% of rated capacity= 3000 lbs x 125%= 3,750 lbs" "On traction elevators where are the bottom guide shoes mounted? - CORRECT ANSWER To the safety plank" "You have a hoist rated at 3,000 lbs, if you use a double block to single block reeving, what would your total lifting capacity be? - CORRECT ANSWER 6,000 lbs" "You need to find the DBG for the car, where would you find this information? - CORRECT ANSWER Final layout or hoistway plan view drawing" "You are hoisting rails into the hoist way using a capstan hoist, your apprentice is having a hard time pulling in rails. What can be done to make it easier? - CORRECT ANSWER Add another or more wraps to the capstan hoist" "Responding to a call on a hydro, you determine that the 50 amp circuit breaker that feeds the controller has tripped. What component of the elevator has the ability to cause this problem? - CORRECT ANSWER The pump motor" "The motor field windings on a DC motor are wound around a laminated core. The composition of the core material is dependent upon which characteristics? - CORRECT ANSWER Permeability: ability of a substance to pack magnetic lines of flux in a space" "You suspect a phasing issue with building power. Which controller device should you check first? - CORRECT ANSWER Reverse phase relay: detects incoming power loss of phase or phase reversal" "How do you measure AC voltage on a digital multimeter? - CORRECT ANSWER Function to VAC Red lead to volt ohm Black lead to common" "Sometimes necessary to increase output of a DC generator to over speed an elevator as part of the safety test. If maximum output is reached an speed cannot be increased, it is said to be what? - CORRECT ANSWER Saturated: cannot produce any more magnetic lines of flux" "What hydro piece uses electrical power using the principle of electromagnetism? - CORRECT ANSWER Hydro Valve Solenoid: electro- mechanical device operated by a coil and having an iron core steel plunger as an armature"