Exam (elaborations) Elevator Mechanic (ELEVATORMECHANIC)
Elevator Mechanic Exam Review Questions with 100% Correct Answers – COMPLETE SOLUTION. A contractor wants to raise the car speed from 100fpm to 125fpm, it currently has a 12" sheave. What sheave is required? - CORRECT ANSWER 125/100=1.25x12"=15" sheave A MOV (Metal Oxide Varistor) burns out. You replace it, but cannot read voltage or resistance. What should you do? - CORRECT ANSWER Check circuit voltage On a Ward-Leonard circuit the break is set, but the motor is trying to slip through the break. What is the issue? - CORRECT ANSWER Suicide Circuit 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 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 1:1-22" 2:1-44" 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 circuit is still hot, Door Operator Disconnect/ Main Line Disconnect 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
Written for
- Institution
- Liberty University
- Course
- Elevator Mechanic (ELEVATORMECHANIC)
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- Uploaded on
- March 29, 2023
- Number of pages
- 19
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- 2022/2023
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- Exam (elaborations)
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- Questions & answers
Subjects
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elevator mechanic exam review questions with 100 correct answers – complete solution a contractor wants to raise the car speed from 100fpm to 125fpm
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it currently has a 12 sheave what sheave
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