Mechanics Exam_ NEIEP BEST CHOICE CORRECT questions and answers Rated 100% A+

Mechanics Exam_ NEIEP BEST CHOICE CORRECT questions and answers Rated 100% A+ Mechanics-NEIEP ** An MOV burns out, you replace it but cannot read voltage or resistance. What should you do? - CORRECT ANSWER-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 ANSWER-Suicide circuit (425) ** A Hydro runs up with no load but does not run up with a full load. What is the issue? - CORRECT ANSWER-The relief valve is set too low (805) ** 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 ANSWER-Mainline disconnect (535) ** The contractor requests that the vertical center of the Rack and Pinion hoist be moved. How is this accomplished? - CORRECT ANSWER-Adjust Tie downs/Wall ties (805) ** There is slight arcing at the Brushes and Commutator. What actions must be taken? - CORRECT ANSWER-None. (430) "Heavy arcing is due to light brush pressure. Mechanical wear indicates heavy brush pressure. ** Car is loaded with 125% and sinks. Why? - CORRECT ANSWER-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 ANSWER-2 600 Ohms resistors in Parallel. "The resistance is half of the highest rating in a parallel circuit. 3, 225 Ohm resistors in parallel equal 75 Ohms. ** A 480 VAC Step Down Transformer is connected to a 3 phase rectifier. What will the output be? - CORRECT ANSWER-320 VDC 480 - 33.33% = 320