The best way to diagnose an ECM motor is to:
A) Turn off power to the unit, remove the control module, and ohm test the motor.
B) Leave power on to the unit and check for voltages at the harness.
C) Turn off power to the unit, remove the control harness, and connect a test controller.
D) Turn off power to the unit, remove the control harness, and ohm test the lead end to end.
C
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An ampacity adjustment of conductors in cable tray is more likely to be required when installing _____.
a. single-conductor cable b. conductors in ventilated tray c. 600V systems d. multiconductor cable
Rubber and glass are good insulators.
Answer the following statement true (T) or false (F)
What is the purpose of locking out equipment?_____________________________________________________________________
What will be an ideal response?
Which of the following common welding components are missing from the aluminum GTAW process, resulting in minimal corrosion from slag entrapment?
a. Flux b. Argon c. Inert gas d. Backing gas