ESCO ELECTRICAL CERTIFICATION TEST BANK BUNDLED TESTS SOLVED QUESTIONS EXPERT CERTIFIED 100 PERCENT CORRECT

ESCO ELECTRICAL CERTIFICATION TEST
BANK BUNDLED TESTS SOLVED
QUESTIONS EXPERT CERTIFIED 100
PERCENT CORRECT

⩥ A solenoid coil is a doughnut-shaped coil of wire that produce.
Answer: A magnetic field


⩥ When do normally open relay contacts close.
Answer: When the relay coil is energized


⩥ When do normally closed relay contacts close.
Answer: When the relay coil is de-energized


⩥ What device can best be described as an electrically operated switch.
Answer: A relay


⩥ The two principal parts of an AC induction motor are the.
Answer: Rotor and stator


⩥ The part of an AC induction motor that turns is called.

, Answer: The rotor


⩥ The part of an AC induction motor that induces the current flow in the
rotor is called.
Answer: The stator


⩥ The magnetic field of the stator is.
Answer: Opposite in polarity as the rotor magnetic field


⩥ The most common type of single-phase motor used in HVACR
equipment is.
Answer: Permanent split capacitor (PSC)


⩥ Compared to the run winding, the start winding is constructed of.
Answer: Smaller gauge wire than the run winding


⩥ What is the primary purpose of the run capacitor.
Answer: Increase the motor efficiency


⩥ What is the primary purpose of the start capacitor.
Answer: Increase the motor starting torque