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HVAC Electrical ESCO Questions and
Correct Answers/ Latest Update /
Already Graded
Impededance
a. Opposition to alternating current flow.
b. Electrical pressure.
C. Amperage.
d. Voltage applied to the circuit.
Ans: a. Opposition to alternating current flow. (All types of resistance
combined)
Like Charges
a. Attract one another.
b. Repel each other.
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c. Are negative.
d. Are positive.
Ans: b. Repel each other.
Any material that will readily release electron called:
a. An insulator.
b. conductor.
c. A resistance.
d. A neutron.
Ans: b. conductor.
Which of the following materials would be best suited for use as a
semi-conductor?
a. Copper.
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b. Bakelite.
C. Aluminum.
d. Silicon.
Ans: d. Silicon.
Which of the following is generally considered to be within the
maximum allowable (plus or minus) supply voltage variation?
a. 5%.
b. 15%.
C. 20%.
d. 30%.
Ans: a. 5%.
In electrical wiring, a black colored wire in an alternating current
circuit usually indicates:
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a. The hot conductor.
b. The neutral conductor.
C. The ground conductor.
d. The safety conductor.
Ans: a. The hot conductor.
Fuses are sized by:
a. Amps & watts.
b. Volts & watts.
C. Watts & ohms.
d. Volts & amps.
Ans: d. Volts & amps.
HVAC Electrical ESCO Questions and
Correct Answers/ Latest Update /
Already Graded
Impededance
a. Opposition to alternating current flow.
b. Electrical pressure.
C. Amperage.
d. Voltage applied to the circuit.
Ans: a. Opposition to alternating current flow. (All types of resistance
combined)
Like Charges
a. Attract one another.
b. Repel each other.
,2 | Page
c. Are negative.
d. Are positive.
Ans: b. Repel each other.
Any material that will readily release electron called:
a. An insulator.
b. conductor.
c. A resistance.
d. A neutron.
Ans: b. conductor.
Which of the following materials would be best suited for use as a
semi-conductor?
a. Copper.
,3 | Page
b. Bakelite.
C. Aluminum.
d. Silicon.
Ans: d. Silicon.
Which of the following is generally considered to be within the
maximum allowable (plus or minus) supply voltage variation?
a. 5%.
b. 15%.
C. 20%.
d. 30%.
Ans: a. 5%.
In electrical wiring, a black colored wire in an alternating current
circuit usually indicates:
, 4 | Page
a. The hot conductor.
b. The neutral conductor.
C. The ground conductor.
d. The safety conductor.
Ans: a. The hot conductor.
Fuses are sized by:
a. Amps & watts.
b. Volts & watts.
C. Watts & ohms.
d. Volts & amps.
Ans: d. Volts & amps.
