MECHANICS EXAM ACTUAL EXAM STUDY GUIDE WITH QUESTIONS AND CORRECT VERIFIED ANSWERS GRADED A+ || 100% GUARANTEED PASS NEWEST VERSION

MECHANICS EXAM ACTUAL EXAM STUDY GUIDE WITH QUESTIONS AND CORRECT VERIFIED ANSWERS GRADED A+ || 100% GUARANTEED PASS NEWEST VERSION ** At what speed should the Governor Switch contact be set to open? - Answer ️90 - 95% of Governor tripping speed. * What is the Max clearance between Door and Sill? - Answer ️3/8". (1/4" - 3/8") ** What is the minimum Gib to Sill? - Answer ️1/4" * What is the minimum gap Sill - Sill? - Answer ️1/2" ** What is the Max gap Sill - Sill? - Answer ️1 1/2" * A Force of 5000 lbs is applied to a plunger with an area of 25 sq inches. What is the system pressure? - Answer ️200 psi. (5000 lbs/ 25 sq inches = 200 psi ** How many gallons are needed to run a 4" plunger 25'? - Answer ️16.3 gallons (V = A(H) * In Bi-Parting doors, what gap is allowed before Gate switch is opened? - Answer ️3/4" Max ** What do you do before running a Hydro elevator after the car is built? - Answer ️Check piston for debris and make sure Head is tight. * What is going on if you add power to a generator but motor doesn't gain more speed? - Answer ️Generator is Saturated. * What is Relief set at? - Answer ️150% ** What is the Maximum door closing force? - Answer ️30 lbs (7 lb Kinetic Force) ** What do you do before replacing a relay on a controller? - Answer ️Turn power off and Lock our Tag out * When are Oil Buffers required? - Answer ️Above 200FPM * What amount of Crosby's do you use on 1/2" rope? - Answer ️3 * SCRs are good for what? - Answer ️They are quieter and cause less vibration than an MG Set. ** If rigging a motor into the Overhead, what type of rigging to prevent it from spinning? - Answer ️Hoisting Jack * If changes need to be made during construction, who do you inform? - Answer ️Mechanic In Charge ** If you get a complaint that all floors make noise, what should you check first? - Answer ️Car doors ** What must a Pit have? - Answer ️Stop Switch and Pit Light. *If a Handrail Switch is tripped and you reset it but the escalator immediately turns back on, what is the problem? - Answer ️The Start Switch is stuck in an "On" position. RPM formula? - Answer ️60 x F (N/2) Example: what is the rotating speed of a three phase 30 HZ 6 pole motor? 60 x 30hz = •/• 3 poles = 600RPM ** How do you get rid of stress on cables? - Answer ️Let them hang and unwind. * ADA height for a new Hall Fixture? - Answer ️42" to center of fixture *What item is Electromechanical? - Answer ️Valve Solenoid ** What is a safety concern while working on a Hydro? - Answer ️Mechanical equipment (Belts) (Car drops on gravity. Car drops with no power applied) * What is the Silent Killer? - Answer ️Counter weights ** What is the minimum size for an Escape Hatch? - Answer ️400 square inches * What do U grooves need? - Answer ️Double Wrap * You have an old DC motor and you are adding an SCR Drive. What do you do with the Interpoles? - Answer ️Leave the Interpoles alone. (When adding an SCR Drive to the generator, the Series Loop is removed, as are the three resistors. * When cutting Laminated Panels, which direction should the finished side face? - Answer ️Finished Face of the material should face the cutting edge of the tool. (255). The blade has a tendency to burr the backside. ** How must Oxygen and Acetylene tanks be stored? - Answer ️Must be vertically 12' apart or on a cart with a 1/2 hr fire rated barrier between them. * How do you handle a coworker who shows up to work intoxicated? - Answer ️Speak to the MIC, Union BA or call your Supervisor. ** What is a Selective Collective control system? - Answer ️A controller that allows an Elevator to Bypass calls in the opposite direction of travel. ** What is the smallest wire permitted in an Elevator install? - Answer ️# 24 gauge. * In what section of the NEC is Elevator, Escalator, Dumbwaiter and Moving Walks found? - Answer ️620 * What is the Max length Motor- Generator leads can be to the controller without a raceway? - Answer ️6' * What is the smallest wire allowed in a Traveling cable? - Answer ️# 20 Gauge * What are the most common features of Load Weigh? - Answer ️To control the Generator field and express operation. * What is required on the Cartop by ASME? - Answer ️Inspection Station, Light, Duplex receptacle. ** If the DC output of a 3 phase rectifier is lower than specified, what is the problem? - Answer ️One Input phase is missing. * What is the Overlap minimum on 2 and 3 speed doors? - Answer ️5/8" ** What is the Max gap of the Leading Edges of Center opening doors? - Answer ️1/2" * 1 gallon is how many cubic inches? - Answer ️231 ** What best describes the operation of a typical Hydro Block Valve with an Elevator parked at the lobby? - Answer ️The Down Valve is closed. The Check Valve is closed. The Up Valve is open. *What is the definition of Working Pressure? - Answer ️Full Load Up pressure * What is the conversion from Kilograms to Lbs? - Answer ️1 Kilogram = 2.2