HVAC Electrical Basic Practice Test with All Correct &
100% Verified Answers| Updated to Pass
All electrical installations must meet the ______________ :
a. NEC
b. ASHRAE
c. NFPA
d. OSHA ✔Correct Answer-NEC
In a three phase supply system, each phase is ___________ with each other:
a. 45 degrees
b. 180 degrees
c. 90 degrees
d. 120 degrees ✔Correct Answer-120 degrees
In which of the following energy is stored in the form of magnetic filled :
a. capacitor
b. resistance
c. inductor
d. impedance ✔Correct Answer-inductor
The Locked Rotor Current (LRC) of a single phase motor is about ____________ of full load current of
the motor :
a. 2 to 3 times
b. 10 to 12 times
c. 5 to 7 times
d. 8 to 10 times ✔Correct Answer-5 to 7 times
Wattmeter is used to measure which of the following :
a. resistance
b. current
c. voltage
d. power ✔Correct Answer-power
Rate of change of charge is defined as :
a. resistance
b. capacitance
c. current
d. voltage ✔Correct Answer-current
Magnetic lines of forces flow between _____________ of a magnet.
a. north pole and east pole
b. north pole and south pole
c. east pole and west pole
d. west pole and east pole ✔Correct Answer-north pole and south pole
The starting winding of an AC single phase motor is ____________ out of a phase with the run
winding :
100% Verified Answers| Updated to Pass
All electrical installations must meet the ______________ :
a. NEC
b. ASHRAE
c. NFPA
d. OSHA ✔Correct Answer-NEC
In a three phase supply system, each phase is ___________ with each other:
a. 45 degrees
b. 180 degrees
c. 90 degrees
d. 120 degrees ✔Correct Answer-120 degrees
In which of the following energy is stored in the form of magnetic filled :
a. capacitor
b. resistance
c. inductor
d. impedance ✔Correct Answer-inductor
The Locked Rotor Current (LRC) of a single phase motor is about ____________ of full load current of
the motor :
a. 2 to 3 times
b. 10 to 12 times
c. 5 to 7 times
d. 8 to 10 times ✔Correct Answer-5 to 7 times
Wattmeter is used to measure which of the following :
a. resistance
b. current
c. voltage
d. power ✔Correct Answer-power
Rate of change of charge is defined as :
a. resistance
b. capacitance
c. current
d. voltage ✔Correct Answer-current
Magnetic lines of forces flow between _____________ of a magnet.
a. north pole and east pole
b. north pole and south pole
c. east pole and west pole
d. west pole and east pole ✔Correct Answer-north pole and south pole
The starting winding of an AC single phase motor is ____________ out of a phase with the run
winding :
