NATE/ICE Motors Questions & Answers. 100% Accurate. Verified.
When replacing a run capacitor you should: - -Increase the replacement capacitor s microfarad rating by 25% to prevent future failures.
A 230-volt CSR compressor keeps tripping a circuit breaker on start-up. You have the proper v...
When replacing a run capacitor you should: - ✔✔-Increase the replacement capacitor s microfarad
rating by 25% to prevent future failures.
A 230-volt CSR compressor keeps tripping a circuit breaker on start-up. You have the proper voltage to
the compressor and the pressures are equalized. The
following resistance readings are taken: Common to run 1 ohm, common to start 1.5 ohms, run to start
1.5 ohms. From each terminal on the compressor to ground, you read infinity. From this you decide. -
✔✔-The compressor has a short between both windings
A PSC compressor has a shorted run capacitor. The compressor now has similar characteristics to which
type of motor? - ✔✔-RSIR (resistive start, induction run)
When using an analog ohmmeter to check the resistance of a compressor start windings, generally,
which scale would you use - ✔✔-the R x 1 scale
The coil of a potential start relay should be wired as follows - ✔✔-In parallel with the start winding
You wish to determine the common, start and run terminals on a new single-phase compressor. From
terminal X to terminal Y you read one ohm, Y to Z you measure five ohms, and from X to Z you read four
ohms of resistance. Using the data given,
identify terminals X, Y, and Z
Use Picture 1 - ✔✔-X=run, Y=common, Z=start
A typical three-phase reciprocating compressor motor is wired in which manner? - ✔✔-wye or star
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