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HVAC Electrical Basics Practice Test 10
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Question 1 of 15
1. Question
1 pointsIn a capacitor start and capacitor run motor, the ______ limits the current through the start winding to prevent it from getting too hot and burning up:
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Question 2 of 15
2. Question
1 pointsWhich of the following device stores electrical energy in the form of magnetic field:
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Question 3 of 15
3. Question
1 pointsA drip-proof motor should be used where water may fall on the motor
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Question 4 of 15
4. Question
1 pointsThe start winding of a single phase motor is then disconnected from the circuit as the motor reaches about ____ of its rated speed.
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Question 5 of 15
5. Question
1 pointsWhich of the following parameters will not change in step up or step down transformers:
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Question 6 of 15
6. Question
1 pointsVoltmeter is connected in _______ to the circuit for which voltage is to be measured
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Question 7 of 15
7. Question
1 pointsWattmeter is used to measure which of the following:
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Question 8 of 15
8. Question
1 pointsFor starting the single phase motor, the start winding and the run winding of open motors must receive power at the same time.
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Question 9 of 15
9. Question
1 pointsRelays designed for starting motors are suitable as switching relays
Correct
because they have more resistance in the contacts
Incorrect
because they have more resistance in the contacts
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Question 10 of 15
10. Question
1 pointsMotors can operate without harm for short periods under a slight overcurrent condition.
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Question 11 of 15
11. Question
1 pointsMotor balancing problems are normally handled by the heating, air-conditioning, and refrigeration technician
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Question 12 of 15
12. Question
1 pointsBimetallic strips are provided in the motors for protecting against:
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Question 13 of 15
13. Question
1 pointsAll the electrical installations must meet which of the following code:
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Question 14 of 15
14. Question
1 pointsWhen working with an unknown voltage, voltmeter should be set to the _____:
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Question 15 of 15
15. Question
1 pointsThe color of the hot leg wire supplying’ 120V single phase supply is:
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