UPDATED MECHANICS EXAM NEIEP (2024/2025) QUESTIONS WITH VERIFIED CORRECT ANSWERS 100% GUARANTEED PASS

UPDATED MECHANICS EXAM NEIEP (2024/2025) QUESTIONS WITH VERIFIED CORRECT ANSWERS 100% GUARANTEED PASS "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" "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" "You are using a Temp Run Box and you get shocked! Why! 520 Pg. 4 - CORRECT ANSWER Bad Ground" "Scaffolding, You have 32' of rise, you are using 3x5 scaffolding. Where will the tie off points be ? 140 PG. 287-288 - CORRECT ANSWER Scaffolding should be tied to the structure using #9 wire or tie-in devices. The first vertical tie should be at the maximum height of 4 times the narrowest base dimension. Additional ties are not to exceed 26' vertically. Maximum horizontal distance between ties is not to exceed 30'." "How much should Counterweight way? 240 Pg. 14 - CORRECT ANSWER Counterweights (Typically) are hung to counter balance the weight of the car PLUS 40% of Capacity Load." "Pulling Spare Wires (Example) 10% of 52 Wires 515 Pg.26 - CORRECT ANSWER Note: We do not use wire smaller than #20 in travelling cables and #24 outside travelers. Largest wires are feeders to Hoist /Pump motor We always have 10 % spares 10% of 52 = 5.2 On a calculator Multiply the percent 10 by the number you have and ÷ by 100 10 X 52 ÷ 100 = 5.2" "The freight door motor is spinning but the door wont move, Why? 535 Pg. 9 - CORRECT ANSWER The correct lube must be used on chains." "Read Lula and Dumb waiters 545 Pg 1 - CORRECT ANSWER Lula: Limited use/Limited Access (Example Wheelchair Lifts) Max Rise 25' Max Speed 30 Ft/Min Max Capacity 1400 Lbs. Max Platform Area 18 Sq/Ft. Residential Elevator: Max Rise 50 ' Max Speed 40 Ft/min Max Capacity 940 Lbs. Max Platform Area 19 Sq/Ft 840 Pg 2 Dumbwaiters: Platform limited to 9 Sq/Ft Inside height is limited to no more than 4 Feet Capacity is limited to 500Lbs No Riders" "If you get on top of Dumbwaiter what must be done? 545 Pg 14 - CORRECT ANSWER You never get on top and you work only partially in with the main line OFF" "PI Formula and Gallons (Example) How much oil to move a 6" jack 25' 815 Pg 10 - CORRECT ANSWER Notes:(Pi) π is 3.1416 and 231 Cubic inches to the Gallon Area: Remember to ÷ 6" ÷ 2 = 3 to get Radius Area = π∙ r² Area = 3.1416 x 3 x 3 = 28.27 inches or 3.146 x 9 = 28.27 Volume Multiple are times height to solve for Volume V = A∙H V = 28.27 x 300 (25" feet x 12" = 300) V = 8481 Cubic Inches Since we already know there are 231 cubic inches to the gallon 8481 ÷ 231 = 36.71 Gallons" "Encoder Waveform Question : You get a Sawtooth reading on oscilloscope out of encoder. Is it good? 350 Pg 16,17 630 Pg 18,19 - CORRECT ANSWER A perfect Encoder Wave Form will have a square wave. A Sawtooth Wave Form is produced when the rise and fall of the Encoder has a fault," "Hand Signals for Moving Boom of Crane and Extend signal. 128 Pg 12 - CORRECT ANSWER Raise Boom / Arm out straight to side with thumb pointed up. Lower Boom / Arm out straight to side with thumb pointed down. Extend Boom / Thumbs pointed out Retract Boom / Thumbs pointed in Hoist up / Forefinger up rotating clockwise Hoist down / Forefinger out facing down rotating counterclockwise" "Traveling Cable 515 Pg 8,9 - CORRECT ANSWER The Travelling cable is connected to the car hanger to form a loop.Generally this loop should be at least 30 times the diameter of the traveling cable,The Hanger may have to be adjusted POST WISE so the loop clears the edge of the platform.The cable must have a minimum of FOUR feet vertical suspension at both the hoist-way and car hanger attachments before it starts to form into its loop." "In a modernization, they plan on moving the controller 30 Feet away which ends up resulting in a voltage drop. What do you do? - CORRECT ANSWER Use larger Wire" "Governor tripping speeds 235 Pg 5 - CORRECT ANSWER Governor trips at 115% of rated speed. Overspeed trips 90% of governor tripping speed. ex. car travels 400fpm 400x1.15=460 460x.9=414" "Weight of rails Question: I you have 15 full 16 lbs. rails and two 8' sections. How much do they weigh? - CORRECT ANSWER 15 (Rails) ,16 Lbs., 2 8Ft sections 2 x 8 = 16 total rails are now 16 16 lbs. x 16 ft. (Length of standard rail) = 256 Lbs. 256 Lbs x 16 =4096" "What is an ok substitute for a top rail for a barricade? 131 Pg 9 - CORRECT ANSWER steel rope" "Who can you demand a MSDS sheet from to check chemicals in a cleaning product. 110 PG 13 - CORRECT ANSWER Your elevator Company Superintendent/Manager" "What is needed for a False Platform 225 Pg 9 - CORRECT ANSWER Safeties" "How do you test incoming power 715 Pg 8 - CORRECT ANSWER The first voltage to check is incoming voltage, usuallly three phase AC. All three voltages should be checked with an AC voltmeter using the the following procedure. 1. Line 1 to Line 2 2 Line 1 to Line 3 3.Line 2 to Line 3 On most hydraulic elevators the easiest place to take these readings is at the Pump Starter. On a traction the the wires from the disconnect switch usually terminate at three terminals on the controller that are labeled L1, L2, L3" "Category 1 Oil Buffer test, How many seconds should it take for the buffer to fully come back. 215 Pg 10 - CORRECT ANSWER 90 seconds no load slow speed" "How many points of contact should be maintained on a ladder? 132 Pg 13 - CORRECT ANSWER 3 Points of contact shall be maintained.. Note. Ladder should extend 3 feet above upper landing. 1/4 away from height Step ladders: Never step on top two steps." "When replacing a circuit board in a controller, what should you do after the power is Off? 645 Pg 14 - CORRECT ANSWER Unless directed you should handle all PSBs using a ground strap. Never Remove or install a PCB unless the power is removed from the system!" "During Hydraulic pit maintenance, what are the three major hazards? - CORRECT ANSWER Oil, Tripping and electricity" "You are using a portable ladder to get from landing to the machine room level. How far above the upper level must the side rails of the ladder extend? 132 Pg 13 - CORRECT ANSWER 3 Feet" "You are installing push buttons and notice they have snake eye screws. What tool must be used? 205 Pg 10 - CORRECT ANSWER Tamper Proof" "When using hoisting materials, How often should they be checked for defects? - CORRECT ANSWER Before every pick" "You are working with eye bolts. What would you check to determine the safe working load? 210 Pg 24 last paragrah - CORRECT ANSWER We never use to hoist / Otherwise known as in line load" "Installing the limit cam on the car, you notice holes in different locations on the mount. Where do you find the correct measurements to set it? 175 Pg 8 - CORRECT ANSWER Mechanical detail Drawings" "You are on a callback and you find the pulley came off the Pump Motor and the set screw is missing.What type of set screw is needed to replace the missing one? - CORRECT ANSWER Cup set screw" "You have been told to measure the outside diameter of a pipe. What tool would you use? 205 Pg 4 - CORRECT ANSWER Caliper" "A team is installing a 200Fpm. car with spring buffers. What is the minimum stroke? 215 Pg 4 Figure 5 - CORRECT ANSWER 4" inches 100 or less 1½ 101 to 150 2½ 151 to 200 4" "You suspect a phasing problem with the building power. Which one of the following controller devices would you check first? 820 Pg 5 - CORRECT ANSWER Reverse Phase Relay The reverse phase device will detect if the incoming power has a loss of phase or phase reversal" "What item in a Hydro Elevator uses electrical power utilizing the principal of electromagnetism. 815 Pg 26 - CORRECT ANSWER Hydraulic Valve Solenoid An electromechanical device operated by a coil and having an iron or steel plunger as an armature" "Which of the following maintenance procedures addresses the issue of proper DC Generator commutation? 430 Pg 6'7 - CORRECT ANSWER Continued contact between brushes and commutator" "A newly modernized car has a noticeable vibration, The application engineer has asked you to determine the frequency (HZ) of your 24" drive sheave. (Roped 1:1 with a contract speed of 500 Fpm.) What is the frequency? - CORRECT ANSWER 500fpm/3.1416=159.15 Convert size of sheave 24" to ft=2' 159.15/2=79.58 79.58/60 hz=1.33 hz" "Your customer is complaining that your older SCR Drive powered elevator is causing noise in the building power lines. What do you need. 410 Pg 11 - CORRECT ANSWER A Isolation Transformer Isolation transformers are used to minimize electrical noise from being reflected back onto supply lines." "In a series circuit with a 10K resistor and a 2mA current flow , what is the applied Voltage? - CORRECT ANSWER Ohm Law E= I∙R I x R = 20 20 Volt" "How would you connect on Ohmmeter to check load resistance? 335 Pg 12 - CORRECT ANSWER The Black lead is plugged into COMMON The Red Lead is plugged into vΩ Set the Switch to Ω Power removed from the circuit. At least one lead disconnected from load being measured. The Ohmmeter is connected in Parallel across the load. With a digital meter just set and measure. With a Analog meter you have to zero out the meter by touching leads together." "What is the Maximum voltage drop that can occur across a 500 Watt resistor carrying 2 Amps of current? - CORRECT ANSWER Power Law P = V∙ I 500 ÷ 2 = 250 Volts" "Exciter voltage comes from what source ? 425 Pg 2 - CORRECT ANSWER Generator" "When pulling Hoistway wiring a 10% spare is desirable. If the wiring required (15 - #14 Awg) (27 - #16 Awg) (57 - #18Awg) What is the best selection of wires? 515 Pg 26 - CORRECT ANSWER 10 % is desired of each set of wires 15 x .1 = 1.5 or 2 27 x .1 = 2.7 or 3 57 x .1 = 5.7 or 6 Answer: 2 #14, 3 #16, 6 #18" "You receive 26 22Lb. standard lenght rails and 2 8Ft. sections. How much weight will the rails place on the floor? - CORRECT ANSWER Standard rails are 16Ft. Long Each Foot weighs 22Lbs 27 x 16 = 432 total feet of rails 432 x 22lbs per foot = 9504Lbs." "Your Installing multiple travelers on a high rise car installation. Where should the #1 travelling cable be located? 515 Pg 8 - CORRECT ANSWER Closest to the rail" "Two controllers in a small motor room face each other with the voltages of 500Volts. What is the minimum clearance? 235 Pg 9 - CORRECT ANSWER 36 Inches" "When installing travelling cables what is the minimum length of vertical suspension at both ends before the loop forms? 515 Pg 9 - CORRECT ANSWER 4' ft." "In order to properly bond an isolation platform Where would you connect the bonding straps. 515 Pg 31 - CORRECT ANSWER Car Sling to Platform" "As a mechanic, you are sent to install an escalator. What point of reference would you use to square the unit? 825 Pg 5 - CORRECT ANSWER Column Line" "What does the AMSE Code specify regarding the clearance between the skirt panel and the side of the step tread? 825 Pg63 - CORRECT ANSWER Skirt board switches are required at both upper and lower ends of escalator. Gap of no more than 6mm" "You are preparing to hoist the car for cable installation, before doing this, you need to install which of the following. 520 Pg 3 - CORRECT ANSWER The Governor Cable" "Your about to troubleshoot an elevator that has shut down. What Print would you use to help you make it easier to trace the circuits and solve the problem - CORRECT ANSWER The Straight line wiring diagram" "You just pulled multi-cords down the hoist way of a high rise installation How should you provide strain relief for the multi cords? 510 Pg 36,37 - CORRECT ANSWER Strain supports are required in the vertical raceway every 100 Feet Begin fastening the strain devices at the LOWEST one and work upward to adjust tension." "You need to speed up a AC motor that has a fixed number of poles. Using the formula RPM = 60 ∙ ƒ ÷ by p/2 - CORRECT ANSWER Change the frequency HZ" "the Counterweight and the frame that weighs 10000 Lbs. needs to be increased by 5%, What would the new counterweight and frame weigh? - CORRECT ANSWER On a calculator 10000 x .05 = 500 10000 + 500 = 10500" "How to determine the correct angle from the vertical for placing a ladder? 132 Pg 16 - CORRECT ANSWER Measure out the distance of ¼ of height" "Which sling angles are dangerous 128 Pg 18 - CORRECT ANSWER 30° and smaller. It is recommended to use 45° or greater." "OSHA requires that most scaffold be designed to support How many times there maximum intended load? 137 Pg 18 - CORRECT ANSWER 4 Times" "A class C fire extinguisher can put out what type of fires? 136 Pg 22 - CORRECT ANSWER Electrical equipment including motors and switches" "A fire needs thee elements to burn What are they? 136 Pg 4 - CORRECT ANSWER Fuel, Oxygen, Heat" "Flash Point is a ? 136 Pg 9 - CORRECT ANSWER Temperature" "What must be done before checking drive belts on a hydro? 820 Pg 1 - CORRECT ANSWER Pull the Main Line Switch" "The three major components of a personal fall arrest system are? 110 Pg 6 - CORRECT ANSWER Anchorage, Lanyard, Body Harness" "In an elevator system of 2 or more cars, what is needed to coordinate the movement and the hall dispatch calls? 720 Pg 19 - CORRECT ANSWER Group Dispatch" "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 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" Know the formula for RPM - CORRECT ANSWER RPM = 60 ∙ ƒ ÷ P÷2 = Step 1. 60 x Frequency (Hz.) = Step 2. Poles ÷ 2 = Take answer 1 and ÷ by answer 2 =" "Relief valve working pressure - CORRECT ANSWER Relief Valve is set at 150% working pressure" "SCR Example: 635 Pg 14 Figure 26 - CORRECT ANSWER A Meter with the positive lead on the Anode and the negative lead on the Cathode. A jumper is placed across the Anode and Gate as well This should show .7 Volts an indication of a Good SCR" "Ward Leonard System 425 Pg 7,17 - CORRECT ANSWER When the Generator and Hoist motor armature are connected in parallel they form a closed loop.In this configuration car speed is controlled by controlling the amount of current passing thru the generator shunt field. To achieve nearly constant speed under changing loads , The Ward Leonard System of automatic armature voltage control has been in use for 1/2 century. This system also regenerates power back thru the generator to the AC mains, and an energy cost is realized." "Rack and Pinion Hoist (Outside Hoist) Contractor wants to move the hoist, what do you need? 850 pg 11,12 - CORRECT ANSWER Extension tubes and ties" "Escalator is 10 inches too low, what was wrong? 825 Pg 12 - CORRECT ANSWER Incorrect column mark" "How do you measure an Escalator Hand Rail 835 Pg 14 (Figure 14) - CORRECT ANSWER Mark along the top portion of incline and bottom. (Not on curved section)Measure in between. Measure Down! Advance the escalator till the bottom line is at the top and place new line at bottom using first measurement. Continue to do this till you reach first measurement. Add all together. Note: Last measurement will be shorter than the rest." "What is Maximum Incline of Moving Walkway? 830 Pg 6 - CORRECT ANSWER Moving walkway Max angle is 12° Escalator Max angle is 30°" "Ward Leonard System Question : If all three contacts close what will happen? 425 Pg 18 Figure 17 - CORRECT ANSWER Run High Speed" "Safeties (What type of safeties would you have on a car that goes 300 FPM? 240 Pg 36 - CORRECT ANSWER Type B / Safeties which apply limited pressure on the guide rails during stopping interval. Continuous tension in the governor rope may or may not be required Note: Type A are for under 150 and are instantaneous type.. Type C are Type A with Oil Buffers. The stopping distance is equal to the effective stroke of the buffer." "A car keeps blowing a 3(Amp) fuse at the same point in the hoist way, What is the problem? - CORRECT ANSWER Exposed traveling Cable" "What type of oil do you put in a machine? - CORRECT ANSWER Gear Oil, Non Detergent, Single Viscosity" "Omega Rails 220 Pg 8 - CORRECT ANSWER DO NOT TORQUE them at joints Torque limits are required to maintain the shape of the rail." "a 75 Ohm resistor has blow and you don't have a replacement, What can you use? - CORRECT ANSWER 3 - 225 Ohm resistors in parallel or 3 - 25 Ohm in series" "Series Brake Circuit (345 Pg 8 Figure 11) 345 Pg 8 Figure 11 - CORRECT ANSWER You open contact E to reduce the current. Contact E opens when the brake is lifted and inserts more of the brake resistance in this series circuit, reducing the value of the brake current. This circuit places a small portion of the break resistor in series with the brake coil at the start to limit the initial current into the coil, After the coil is fully energized, the full resistor is introduced to further reduce the coil current. That is the current has to gradually build up in the coil and once it does ,it does not require as much current to keep it energized.Like a flywheel, it takes alot to get it going but once its rotating not much is needed, The final current value prevents the brake coil from saturating and thus allow it it to drop quicker and more gently when applying mechanical brake." "If a Rack and Pinion Hoist (Outside Hoist) is not Plumb ,Level and Square what can happen? 850 Pg Unknown - CORRECT ANSWER The hoist can go on safeties!" "Extension tubes 850 Pg 16 - CORRECT ANSWER The extension tubes provide necessary clearance for placement of concrete forms" "Area of a plunger 815 Pg 15 - CORRECT ANSWER (Pi) 3.1416 x (R)radius ²(squared) Plunger diameter is 10" So you divide ÷ by 2 = 5 3.1416 x 5² (25)= 78.54 inches" "If you arrive at site with freight doors and one side is hanging down, what is the first thing that you do? - CORRECT ANSWER Block the doors/they have their own disconnect" "Escalator Step Level Switch 825 Pg 37 - CORRECT ANSWER Step Level switches (Sometimes referred to as Sag Switches) are located within the step band of both upper and lower truss assemblies.The switches function is to prevent a step that is sagging more than 1/8 inch at the riser end of either side of the step. This is generally caused by worn, damaged or missing step wheels. This switch is manually reset to be able to run." "The Escape Hatch opens which way? - CORRECT ANSWER Outward" "Does a residential lift require an Escape Hatch 845 Pg 6 - CORRECT ANSWER An Escape Hatch is not necessary UNLESS manual operation is not provided!" "What print will show you the location and how many fixtures? 175 Pg 8 - CORRECT ANSWER Job abstract" "12 Floor Building with three cars, 3 floors will not get PI's. How many PI's in total do you need to order for this job? - CORRECT ANSWER 12 Floors x 3 Elevators= 36 PI's - (3 from 3 floors)9 =27" "If you have an elevator that goes 1760 RPM at 60Hz, What Hz do we need for it to go 600 RPM's - CORRECT ANSWER 1760/60=600/X X=20.45" "What kind of drill method do we use in soft soil? 805 Pg 5,6,7 - CORRECT ANSWER Rotary drill" "Who gives you a rite to a safe workplace? 125 Pg 1,2 - CORRECT ANSWER OSHA" "Static Load test (Hydraulic Elevator) A car is given a Annual Static Load Test. The car drifts down 15 inches in ten minutes with no noticeable oil leak. Where is it leaking? 820 Pg 12 - CORRECT ANSWER the annual cylinder test (Static Load Test) is required on unexposed cylinders.The test is performed after the relief pressure test by placing the empty car at any location and marking the location of the sill or jack to determine if there is any movement. Any movement that can not be accounted for by temperature change,valve leakage,or visible leaks after 15 minutes indicates an UNDERGROUND LEAK." "They give you a voltage of 480 on Primary and 216 on secondary and a current and asked which transformer you would need to order. 1KVA 1-1 , 2KVA 2-1 , 3KVA 2-1 To Answer Current is needed. also helps to know if Single Phase or Three Phase - CORRECT ANSWER Single Phase Transformers and Three Phase Transformers require 2 pieces of information: 1. The Load Line to Line voltage (V) volts 2. The Maximum Load phase current (I) current For a Single Phase Transformer (Calculation) KVA = (V x I) ÷ 1000 = For A Three Phase Transformer (Calculation) Note: (1.732) is the numerical value for the (square root of 3) or (3√) KVA = (V x I x 1.732) ÷ 1000 = KVA = (V x I x 3√) ÷ 1000=" "You are sent to an industrial plant to perform a repair in an elevator pit that has been determined to be a "Confined Space", What general level of training must you have to perform your task? 133 Pg 14 - CORRECT ANSWER Entrant" "Traction & Hydraulic elevator machines have many hazards, Which of the following would you consider the most dangerous? - CORRECT ANSWER Rotating Equipment" "You are installing elevator machine and sheave. Where would the machine and secondary sheaves be aligned. 230 Pg 17 - CORRECT ANSWER Center of Rail Measrements" "You are testing an elevator with a rated car speed of 500 fpm. At what minimum speed should the car safeties set. - CORRECT ANSWER 115% 575Fpm 115% is the minimum tripping speed for safeties 90% for mechanical trip device 500 x 1.15 = 575 575 x .9 = 517" "One of the many hazards in the elevator industry is one of the most obvious dangers you could face in construction and modernization, Which of the following is that one? 105 Pg 2 - CORRECT ANSWER Falls" "You are installing Machines, Governors and Generators and need to know the location where this equipment is to be installed. Where do you Look? 175 Pg 7 - CORRECT ANSWER The Machine Room Plan View Drawing" "What should the dimensions of the top rail, mid rail and toe board be on an Osha approved barricade? 131 Pg 9 - CORRECT ANSWER 42" 21" 3" toeboard" "When using personal fall protection, The life line should be made of a synthetic material or wire rope with a minimum breaking strength of ? - CORRECT ANSWER 5000 Lbs." "Which one of the following moving Hazards is called the silent killer? 120 Pg 6 - CORRECT ANSWER Counterweight" "You are preparing to replace a resistor on a car out of service. What should you do first? - CORRECT ANSWER Lock Out / Tag Out" "You are about to replace the abrasive wheel on your grinder. What is the test that should be performed prior to using. 130 Pg 20 - CORRECT ANSWER Ring Test" "How often are extension cords checked for continuity? 129 Pg 20 - CORRECT ANSWER 3 Months" "The DBG is 6' 6" using a 15 Lb. rail and 1/4 of shims. What is the distance between the angle brackets on the buffer support channel? 220 Pg 1 Figure 3, 215 Pg 5 - CORRECT ANSWER 7' 1" ½ DBG is 6'6" 15 Lbs rail is 3½" deep x 2 = 7" ¼ of shims x 2 = ½ of shim combined 6' 6" + 7" = 7' 1" plus the ½ of shim and = 7' 1" ½" "The scaffold built in your hoistway must be inspected by a competent person. How does OSHA define a competent person? 125 Pg 17 - CORRECT ANSWER One who is capable of identifying existing and predictable hazards and who has authorization to take prompt, corrective measurements" "When using a clevis with a screw type pin, what must you do before each lift? 210 Pg 9 - CORRECT ANSWER Tighten or inspect the pin" "A mechanic has a car that weighs 7000 Lbs. with a capacity load of 3500 Lbs. The counter weight balance is 40%, What does the counterweight weigh? 204 Pg 14 - CORRECT ANSWER Counterweights typically are hung to counter balance the weight of the car plus 40% of capicity load. 3500 (Capacity) x 40 ÷ 100 = 1400 Lbs 1400 (40 % of capcity) + 7000 (Car Weight) = 8400Lbs." "Your installing an simplex Hydro Elevator with a total rise of 48'. How many rails will you need if you stack them staggered? - CORRECT ANSWER 6 Rails are 16 feet standard length Hydros only have car rails , so a SET of rails 48 ÷ 16 = 3 and we need a SET so x 2 = 6" "You are installing an elevator with a capacity load of 3000 Lbs.How much of a load should the brake stop and hold if properly adjusted? 230 Pg 2 - CORRECT ANSWER ASME Rule 207.8 requires that an elevator shall be able to lower , stop and HOLD 125% of rated load safely. 3000 Lbs. x 1.25 = 3750 3750 Lbs. which is 125%" "On a traction elevator the bottom guide shoes or roller guides are fastened to the ? 240 Pg 4 - CORRECT ANSWER Safety Plank" "You have a hoist rated at 3000 Lbs. If you used a double block to single block reeving , what would your total lifting capacity be? - CORRECT ANSWER 6000 Lbs." "Your apprentice ask you what the DBG is for a new installation you are on. Where would you find this information? 175 Pg 11 - CORRECT ANSWER Final Layout/ hoistway plan view drawing" "While hoisting a rail with a capstan winch with a single whip line, the apprentice has a hard time lifting the rail. What can be done? 210 Pg 17 - CORRECT ANSWER Add another wrap to the winch" "When responding to a service call on a hydro elevator, you determine that the 50 Amp. circuit breaker that feeds the controller has tripped. Which component of the elevator system had the capability of causing this problem? - CORRECT ANSWER The Pump Motor" "The motor field winding on a DC Motor are wound around a laminated core piece. This piece is necessary to obtain the needed magnetic field . The composition of the core material is dependent on which characteristics ? 415 Pg 6 - CORRECT ANSWER Permeability The ability of a substance to pack in lines of magnetic flux within a given space."