Exam (elaborations)

MECHANICS EXAM COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)

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QUESTION: ** An MOV burns out, you replace it but cannot read voltage or resistance. What should you do? Ans: Replace it with a larger one (630) QUESTION: * On a Ward-Leonard circuit, the brake is set but the motor is trying to slip through the brake. What circuit is the issue? Ans: Suicide circuit (425) QUESTION: ** A Hydro runs up with no load but does not run up with a full load. What is the issue? Ans: The relief valve is set too low (805) QUESTION: ** 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? 2 Master01 | 2025/2026 | Latest update Ans: 22" for 1:1. For a 2:1 with the same issue is 44". QUESTION: ** 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? Ans: Mainline disconnect (535) QUESTION: ** The contractor requests that the vertical center of the Rack and Pinion hoist be moved. How is this accomplished? Ans: Adjust Tie downs/Wall ties (805) QUESTION: ** Working pressure on a Hydro is 400 PSI. What is the correct Relief Valve Setting

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Institution

MECHANIC

Course

MECHANIC

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Institution: MECHANIC
Course: MECHANIC

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Uploaded on: January 30, 2025
Number of pages: 28
Written in: 2024/2025
Type: Exam (elaborations)
Contains: Questions & answers

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mechanics exam complete questions and correct det

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MECHANIC EXAM COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS)
QUESTION: E=__

Ans: IR

QUESTION: P=__

Ans: IE

QUESTION: Pie r^2 =

Ans: Area of a circle

QUESTION: 231 in^3 /____

Ans: gal.

QUESTION: 25.4mm/__

Ans: in.

QUESTION: 2.2kg/
Master01 | Dec, 2024/2025 | Latest update

, 2

Ans: lb

QUESTION: 3 phase rectifier output =

Ans: 1.33 x input

QUESTION: single phase output =

Ans: 0.9 x input

QUESTION: RMS (effective voltage) =

Ans: 0.707 (PEAK V)

QUESTION: TC =

Ans: R x C (5)???

QUESTION: RPM =

Ans: 60 (frequency) / (poles/2)

QUESTION: door overlap minimum =

Master01 | Dec, 2024/2025 | Latest update

, 3

Ans: 5/8" min

QUESTION: door gaps maximum =

Ans: 3/8" max

QUESTION: Gibs minimum =

Ans: 1/4" min

QUESTION: Gate Switch maximum =

Ans: 2"

QUESTION: Passenger Sill to Sill ____ to ______"

Ans: 1/2 to 1-1/2"

QUESTION: Platform Lift Sill ____ to _____"

Ans: 3/8" to 3/4"

QUESTION: Moving Walk maximum =

Master01 | Dec, 2024/2025 | Latest update

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MECHANICS EXAM COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)

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