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HVAC Electrical Ch. 18 Questions And Answers With Verified Solutions Already Passed!!!
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HVAC Electrical Ch. 18 Questions And Answers With Verified Solutions Already Passed!!!
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HVAC Electrical Ch. 18 Questions AndAnswers With Verified Solutions Already
Passed!!!
1. Which of the following voltages are not sage for a 208v motor to operate? -
ANSWER✔✔ 170v and 238v
2. If the voltage supplied to the motor is well below the motor rated voltage, the
current draw will be __ it should be. - ANSWER✔✔ Higher than
3. The voltage tolerance of a standard electric motor is __. - ANSWER✔✔ +10%/-
10%
4. The locked-rotor amperage is normally __ time as great as the run-load
amperage. - ANSWER✔✔ Five
5. Why are explosion-proof motors not normally used on standard equipment? -
ANSWER✔✔ They are too expensive
6. The motor that should be used in a potentially wet area is a(n) __ motor. -
ANSWER✔✔ Drip proof
7. When referring to motors, to what does the "insulation class" relate? -
ANSWER✔✔ The normal operating temperature of the motor
8. A sleeve bearing would typically be used in a motor that operates with a __. -
ANSWER✔✔ Light load where noise is a factor
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