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Elevator Mechanic Exam Review Download to Score A+
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A contractor wants to raise the car speed from 100fpm to 125fpm, it currently has a 12" sheave. What sheave is required? Diam=12" 12/4=3" 25fpm=3" 100fpm + 25fpm= 12"+3"= 15" sheave A MOV (Metal Oxide Varistor) burns out. You replace it, but cannot read voltage or resistance. What should you do? Replace it with a larger MOV On a Ward-Leonard circuit the break is set, but the motor is trying to slip through the break. What is the issue? Suicide Circuit You have an old DC motor and are adding an SCR drive, what do you do to the interpoles? Leave the interpoles alone. When adding a SCR drive to
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