HVAC Electrical Test with All Correct & 100% Verified
Answers |Latest Version| Already Graded A+
Current flow is ✔Correct Answer-the flow of electrons in the circuit
impedance is ✔Correct Answer-opposition to alternating current flow
like charges ✔Correct Answer-repel each other
Any material that will readily release electrons is called ✔Correct Answer-a conductor
the symbol for current is ✔Correct Answer-I
Which of the following materials would best be suited for use as a semi-conductor ✔Correct
Answer-silicone
the safety ground conductor is usually color coded ✔Correct Answer-black (or bare or green &
yellow stripe)
An electron has ✔Correct Answer-a negative charge
resistance is ✔Correct Answer-opposition to current flow
How many watts of power are used by a heater operating at 460 volts and drawing 5 amps?
✔Correct Answer-2300 watts
What type of meter uses its own battery? ✔Correct Answer-ohmmeter
in electrical wiring a black colored wire usually indicates ✔Correct Answer-the hot conductor
Fuses are sized by ✔Correct Answer-Volts & Amps
Two 120 volt incandescent light bulbs are wired in series, one is a 60 watt bulb, the other is a 4 watt
bulb. The result would be; ✔Correct Answer-Both bulbs light
Three defrost heaters; each 15 ohms are wired in parallel to a 120 volt power supply. How many
watts of power will be used? ✔Correct Answer-2880 watts
What is generally considered to be the maximum allowable (plus or minus) supply voltage variation?
✔Correct Answer-5%
Capacitors are rated in: ✔Correct Answer-Microfarads & Volts
When testing a capacitor with an analog ohmmeter, the needle on the meter should; ✔Correct
Answer-deflect towards zero then return to infinite reading.
What is the term used to describe the output side of a transformer? ✔Correct Answer-Secondary
side
, One horsepower is equal to how many watts? ✔Correct Answer-746 Watts
How much resistance must be placed in a 120 volt circuit in order to limit the current to 2 amps?
✔Correct Answer-60 ohms
A parallel circuit contains a 18 ohm and 9 ohm resistor. The total resistance equals; ✔Correct
Answer-6 ohms
In a series circuit, the voltage drop across each resistance (load) will; ✔Correct Answer-Add up to
equal the source voltage
The total resistance of a parallel circuit will be; ✔Correct Answer-Less than the smallest resistance
Which of the following statements about current is true? ✔Correct Answer-Current flow will
increase when voltage increases.
When resistors are wired in parallel; ✔Correct Answer-The voltage drop across each resistor will be
the same as the applied source voltage.
Which of the following is equal to 2.1KW? ✔Correct Answer-2,100 Watts
Which of the following is equal to 100 milliamps? ✔Correct Answer-0.10 amperes
A capacitor analyzer is designed to read; ✔Correct Answer-the capacitance of a capacitor
A 240 volt, 3 wire circuit can be split into two 120 volt circuits. ✔Correct Answer-TRUE
The electric meter on a house measures the _______ passing through it. ✔Correct Answer-wattage
A three phase load requires a minimum of; ✔Correct Answer-three supply lines
Which of the following is the correct formula for determining wattage in an electrical circuit?
✔Correct Answer-W = E times I (or V x I)
A parallel circuit consists of three resistors
R1=30 ohms R2=15 ohms R3=10ohms
if the current through R2=4 amperes, what is the source voltage? ✔Correct Answer-60 volts
The 300 ohm resistors are wired in parallel. The total resistance equals; ✔Correct Answer-100
ohms
An electronically commutated motor (ECM) is Designed to ✔Correct Answer-provide proper air
flow under various conditions.
Resistance can be calculated by ✔Correct Answer-E divided by I (R = E/I)
Voltage can be calculated by ✔Correct Answer-I times R
An ohmmeter should never be connected to ✔Correct Answer-a live circuit
Which of the following would be considered an inductive load? ✔Correct Answer-electric motor
Answers |Latest Version| Already Graded A+
Current flow is ✔Correct Answer-the flow of electrons in the circuit
impedance is ✔Correct Answer-opposition to alternating current flow
like charges ✔Correct Answer-repel each other
Any material that will readily release electrons is called ✔Correct Answer-a conductor
the symbol for current is ✔Correct Answer-I
Which of the following materials would best be suited for use as a semi-conductor ✔Correct
Answer-silicone
the safety ground conductor is usually color coded ✔Correct Answer-black (or bare or green &
yellow stripe)
An electron has ✔Correct Answer-a negative charge
resistance is ✔Correct Answer-opposition to current flow
How many watts of power are used by a heater operating at 460 volts and drawing 5 amps?
✔Correct Answer-2300 watts
What type of meter uses its own battery? ✔Correct Answer-ohmmeter
in electrical wiring a black colored wire usually indicates ✔Correct Answer-the hot conductor
Fuses are sized by ✔Correct Answer-Volts & Amps
Two 120 volt incandescent light bulbs are wired in series, one is a 60 watt bulb, the other is a 4 watt
bulb. The result would be; ✔Correct Answer-Both bulbs light
Three defrost heaters; each 15 ohms are wired in parallel to a 120 volt power supply. How many
watts of power will be used? ✔Correct Answer-2880 watts
What is generally considered to be the maximum allowable (plus or minus) supply voltage variation?
✔Correct Answer-5%
Capacitors are rated in: ✔Correct Answer-Microfarads & Volts
When testing a capacitor with an analog ohmmeter, the needle on the meter should; ✔Correct
Answer-deflect towards zero then return to infinite reading.
What is the term used to describe the output side of a transformer? ✔Correct Answer-Secondary
side
, One horsepower is equal to how many watts? ✔Correct Answer-746 Watts
How much resistance must be placed in a 120 volt circuit in order to limit the current to 2 amps?
✔Correct Answer-60 ohms
A parallel circuit contains a 18 ohm and 9 ohm resistor. The total resistance equals; ✔Correct
Answer-6 ohms
In a series circuit, the voltage drop across each resistance (load) will; ✔Correct Answer-Add up to
equal the source voltage
The total resistance of a parallel circuit will be; ✔Correct Answer-Less than the smallest resistance
Which of the following statements about current is true? ✔Correct Answer-Current flow will
increase when voltage increases.
When resistors are wired in parallel; ✔Correct Answer-The voltage drop across each resistor will be
the same as the applied source voltage.
Which of the following is equal to 2.1KW? ✔Correct Answer-2,100 Watts
Which of the following is equal to 100 milliamps? ✔Correct Answer-0.10 amperes
A capacitor analyzer is designed to read; ✔Correct Answer-the capacitance of a capacitor
A 240 volt, 3 wire circuit can be split into two 120 volt circuits. ✔Correct Answer-TRUE
The electric meter on a house measures the _______ passing through it. ✔Correct Answer-wattage
A three phase load requires a minimum of; ✔Correct Answer-three supply lines
Which of the following is the correct formula for determining wattage in an electrical circuit?
✔Correct Answer-W = E times I (or V x I)
A parallel circuit consists of three resistors
R1=30 ohms R2=15 ohms R3=10ohms
if the current through R2=4 amperes, what is the source voltage? ✔Correct Answer-60 volts
The 300 ohm resistors are wired in parallel. The total resistance equals; ✔Correct Answer-100
ohms
An electronically commutated motor (ECM) is Designed to ✔Correct Answer-provide proper air
flow under various conditions.
Resistance can be calculated by ✔Correct Answer-E divided by I (R = E/I)
Voltage can be calculated by ✔Correct Answer-I times R
An ohmmeter should never be connected to ✔Correct Answer-a live circuit
Which of the following would be considered an inductive load? ✔Correct Answer-electric motor
