Mechanics Exam QUESTIONS AND ANSWERS 100% SOLVED (Newest 2025) ** An MOV burns out, you replace it but cannot read voltage or resistance. What should you do? - Correct Answers ✅Replace it with a larger one (630)
- On a Ward-Leonard circuit, the brake is set but the motor is
trying to slip through the brake. What circuit is the issue? - Correct Answers ✅Suicide circuit (425) ** A Hydro runs up with no load but does not run up with a full load. What is the issue? - Correct Answers ✅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 Answers ✅22" for
1:1.
For a 2:1 with the same issue is 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 Answers ✅Mainline disconnect (535) ** The contractor requests that the vertical center of the Rack and Pinion hoist be moved. How is this accomplished? - Correct Answers ✅Adjust Tie downs/Wall ties (805) 1 / 3
Mechanics Exam QUESTIONS AND ANSWERS 100% SOLVED (Newest 2025) ** Working pressure on a Hydro is 400 PSI. What is the correct Relief Valve Setting? - Correct Answers ✅600 PSI Max.(805) 400 psi x 150% = 600 psi ** A contractor wants to raise the car speed from 100 FPM to 125 FPM. It currently has a 12" sheave. What size sheave is required? - Correct Answers ✅15" (125 /100 = 1.25 1.25 x 12 = 15) ** There is slight arcing at the Brushes and Commutator.What actions must be taken? - Correct Answers ✅None.(430) "Heavy arcing is due to light brush pressure. Mechanical wear indicates heavy brush pressure.** How much resistance is normally measured across a normally closed switch ? - Correct Answers ✅1.2 ohms or 1 to 2 ohms ** A car traveling in the hoistway always stops at the same point and blows a fuse. What is the problem? - Correct Answers ✅Traveling cable has a cut or short ** How is a Class 1 (yearly) buffer test performed? - Correct Answers ✅At slow speed and the buffer must return in 90 2 / 3
Mechanics Exam QUESTIONS AND ANSWERS 100% SOLVED (Newest 2025) seconds. (555) *(60 seconds is acceptable) (90 seconds is code)
- year test (Class 5) is car at rated load and speed. Buffer
- Correct Answers ✅4
- / 3
must return in 90 seconds. CWT at rated speed and buffer must return in 90 seconds.** How many Strain Supports are required on a 350' raceway?
One for every 100' ** How is Stainless steel drilled out? - Correct Answers ✅Slow speed and constant pressure (205) ** What are the required amount of clips for Wedge Shackles and what is their spacing? - Correct Answers ✅At least 2, with the first being 4 times the diameter of the rope from the top of shackle.Second is 8 times the diameter of the rope from the first.** Car is loaded with 125% and sinks. Why? - Correct Answers ✅Slipped through the brake.** A 300 Ohm resistor burns out. You don't have a 300 Ohm resistor to replace it. What can you use to make up the resistor? - Correct Answers ✅2 600 Ohms resistors in