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Electrical / HVAC Test Exam Bundle
Electrical / HVAC Test Exam Bundle
[Show more]Electrical / HVAC Test Exam Bundle
[Show more]current flow is? 
The flow of electrons in the circuit. 
Impedance is? 
Opposition to alternating currentflow. 
Like Charges? 
Repel each other 
Any material that will readily release electrons is called 
A conductor 
The symbol for Current is 
I 
Which of the following material would be best suited...
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Add to cartcurrent flow is? 
The flow of electrons in the circuit. 
Impedance is? 
Opposition to alternating currentflow. 
Like Charges? 
Repel each other 
Any material that will readily release electrons is called 
A conductor 
The symbol for Current is 
I 
Which of the following material would be best suited...
Split-phase motor 
 
PSC 
 
CSCR 
 
Shaded pole motor 
 
Resistance reading to ground from the terminal of a good compressor 
 
CSR 
 
Best starting and running single-phase compressor - A. Uses a start and run winding 
 
B. Uses a run capacitor 
 
C. Uses a run capacitor, start capacitor, and po...
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Add to cartSplit-phase motor 
 
PSC 
 
CSCR 
 
Shaded pole motor 
 
Resistance reading to ground from the terminal of a good compressor 
 
CSR 
 
Best starting and running single-phase compressor - A. Uses a start and run winding 
 
B. Uses a run capacitor 
 
C. Uses a run capacitor, start capacitor, and po...
Current flow is - the flow of electrons in the circuit 
 
impedance is - opposition to alternating current flow 
 
like charges - repel each other 
 
Any material that will readily release electrons is called - a conductor 
 
the symbol for current is - I 
 
Which of the following mat...
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Add to cartCurrent flow is - the flow of electrons in the circuit 
 
impedance is - opposition to alternating current flow 
 
like charges - repel each other 
 
Any material that will readily release electrons is called - a conductor 
 
the symbol for current is - I 
 
Which of the following mat...
List what part (voltage source, switch, or load) is checked with the following meter function "VOLTAGE" - Voltage source, switch and load. 
 
AC electricity flows? - Both.....positive to negative and negative to positive. 
 
When electricity is present, which of the following are also presen...
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Add to cartList what part (voltage source, switch, or load) is checked with the following meter function "VOLTAGE" - Voltage source, switch and load. 
 
AC electricity flows? - Both.....positive to negative and negative to positive. 
 
When electricity is present, which of the following are also presen...
_____ are the particles that orbit the core of an atom - electrons 
 
______ is the force that pushes free electrons through conductors - voltage 
 
name 3 terms meaning voltage - electromotive force (emf) potential difference and eletrical pressure 
 
a device used to generate electricity ...
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Add to cart_____ are the particles that orbit the core of an atom - electrons 
 
______ is the force that pushes free electrons through conductors - voltage 
 
name 3 terms meaning voltage - electromotive force (emf) potential difference and eletrical pressure 
 
a device used to generate electricity ...
The heat pump requires ______________thermostat. 
a. single stage heating operation 
b. two stage heating operation 
c. three stage heating operation - two stage heating operation 
 
the thermostat will look for the ____ circuit first before using the battery back-up power. 
a. R 
b. C 
c. Y - ...
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Add to cartThe heat pump requires ______________thermostat. 
a. single stage heating operation 
b. two stage heating operation 
c. three stage heating operation - two stage heating operation 
 
the thermostat will look for the ____ circuit first before using the battery back-up power. 
a. R 
b. C 
c. Y - ...
rating of service switches will be less than - 1-1/3 the computed load current 
 
smallest wire permitted to be used in general wiring - 14 awg 
 
how many circuits are on a 100 amp panel - 20 circuits 
 
when running wire into an outlet, pull extra wire for splicing - 6" 
 
minimum siz...
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Add to cartrating of service switches will be less than - 1-1/3 the computed load current 
 
smallest wire permitted to be used in general wiring - 14 awg 
 
how many circuits are on a 100 amp panel - 20 circuits 
 
when running wire into an outlet, pull extra wire for splicing - 6" 
 
minimum siz...
Alternating current (AC) 
current that reverses its direction of flow periodically. Reversals generally occur at regular intervals. 
 
Ampere 
The amount of current required to flow through a resistance of one ohm with a pressure of one volt, measured with an ammeter. 
Atom 
the smallest part of an...
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Add to cartAlternating current (AC) 
current that reverses its direction of flow periodically. Reversals generally occur at regular intervals. 
 
Ampere 
The amount of current required to flow through a resistance of one ohm with a pressure of one volt, measured with an ammeter. 
Atom 
the smallest part of an...
Magnetic lines of force flow between _______ of a magnet - North Pole and South Pole 
Resistance is measured in which of the following: - Ohms 
In a three phase supply system, each phase is _______ with each other: - 120 degrees 
Power factor in a normal electrical circuit be ______: - L...
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Add to cartMagnetic lines of force flow between _______ of a magnet - North Pole and South Pole 
Resistance is measured in which of the following: - Ohms 
In a three phase supply system, each phase is _______ with each other: - 120 degrees 
Power factor in a normal electrical circuit be ______: - L...
What is electricity? - Flow of electrons between atoms in common wire material or load 
 
What is current flow? - Electrons flow 
 
What creates a magnetic field in a conductor? - Current flow 
 
What is voltage? - Electrical pressure that pushes current flow 
 
What is the difference be...
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Add to cartWhat is electricity? - Flow of electrons between atoms in common wire material or load 
 
What is current flow? - Electrons flow 
 
What creates a magnetic field in a conductor? - Current flow 
 
What is voltage? - Electrical pressure that pushes current flow 
 
What is the difference be...
Current flow is: - The flow of electrons in the circuit. 
 
Impedance is: - Opposition to alternating current flow. 
 
Like charges; - repel each other. 
 
Any material that will readily release electrons is called; - A conductor 
 
The symbol for current is; - I 
 
Which of the follo...
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Add to cartCurrent flow is: - The flow of electrons in the circuit. 
 
Impedance is: - Opposition to alternating current flow. 
 
Like charges; - repel each other. 
 
Any material that will readily release electrons is called; - A conductor 
 
The symbol for current is; - I 
 
Which of the follo...
A switch in a open position - Infinite 
 
What does FLA stand for - Full loaded Amps 
 
When does the motor draw FLA - When the motors are running (full speed) 
 
I need to shut off the power before measuring - ohms 
 
infinite infinite 10 - one open one good 
 
name two motors that d...
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Add to cartA switch in a open position - Infinite 
 
What does FLA stand for - Full loaded Amps 
 
When does the motor draw FLA - When the motors are running (full speed) 
 
I need to shut off the power before measuring - ohms 
 
infinite infinite 10 - one open one good 
 
name two motors that d...
What does NEC stand for? - National Electric Code 
 
What is Ampacity? - The current carrying capacity of wire or cable expressed in amperes or amps. 
 
What is EMF? - Electromotive Force (volts) 
 
What is Amperage? - The measurement of electrical flow in a conductor. 
 
You check volts...
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Add to cartWhat does NEC stand for? - National Electric Code 
 
What is Ampacity? - The current carrying capacity of wire or cable expressed in amperes or amps. 
 
What is EMF? - Electromotive Force (volts) 
 
What is Amperage? - The measurement of electrical flow in a conductor. 
 
You check volts...
Heater 
 
Crankcase heater 
 
Defrost heater 
 
Hot-gas solenoid 
 
Relay coil 
 
Red signal light 
 
Compressor (single phase) 
 
Compressor (three phase) 
 
Fuse 
 
Circuit breaker 
 
In-line thermal overload 
 
Magnetic overload 
 
Pilot duty thermal overload 
 
Relay or contactor wi...
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Add to cartHeater 
 
Crankcase heater 
 
Defrost heater 
 
Hot-gas solenoid 
 
Relay coil 
 
Red signal light 
 
Compressor (single phase) 
 
Compressor (three phase) 
 
Fuse 
 
Circuit breaker 
 
In-line thermal overload 
 
Magnetic overload 
 
Pilot duty thermal overload 
 
Relay or contactor wi...
Law of electric states that: - Like charges repel, and opposites attract 
 
When testing a supply voltage a maximum variation allowed is typically: - plus or minus five percent 
 
A Voltage Tester reads zero when there is: - no potential difference 
 
An Ammeter - Is used to measure the ...
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Add to cartLaw of electric states that: - Like charges repel, and opposites attract 
 
When testing a supply voltage a maximum variation allowed is typically: - plus or minus five percent 
 
A Voltage Tester reads zero when there is: - no potential difference 
 
An Ammeter - Is used to measure the ...
Resistance is? - Opposition to current flow 
 
An electron has? - A negative charge 
 
Impedance is? - Opposition to alternating current flow 
 
Current flow is? - Electron flow in a circuit 
 
The safety ground conductor is usually color coded? - Green or bare. 
 
Like charges? - ...
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Add to cartResistance is? - Opposition to current flow 
 
An electron has? - A negative charge 
 
Impedance is? - Opposition to alternating current flow 
 
Current flow is? - Electron flow in a circuit 
 
The safety ground conductor is usually color coded? - Green or bare. 
 
Like charges? - ...
Electrons flow from __________ to ____________. - negative, postitive 
 
What is the better conductor of electricity? Copper, Gold, oil, or aluminum - gold 
 
One horsepower equals ____________. - 746 watts 
 
Transformers are used to lower voltages because very _____ voltages can be transm...
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Add to cartElectrons flow from __________ to ____________. - negative, postitive 
 
What is the better conductor of electricity? Copper, Gold, oil, or aluminum - gold 
 
One horsepower equals ____________. - 746 watts 
 
Transformers are used to lower voltages because very _____ voltages can be transm...
how much resistance must be placed in 120V curcuit in order to limit the current to 2Amps - 60 Ohms 
 
when current flows in a 2 wire circuit such as 120v, if a clamp on amp meter is clamped around both wires what measurment would you expect. - 0 amps - due to cancellation of 2 fields 
 
Curre...
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Add to carthow much resistance must be placed in 120V curcuit in order to limit the current to 2Amps - 60 Ohms 
 
when current flows in a 2 wire circuit such as 120v, if a clamp on amp meter is clamped around both wires what measurment would you expect. - 0 amps - due to cancellation of 2 fields 
 
Curre...
Chapter 1 - 
 
A heating and air-conditioning service technician usually requires _____ to troubleshoot heating and air-conditioning systems. - voltage being supplied to the equipment 
 
A live electrical circuit is _____. - one that is being supplied with energy 
 
_____ is used to operat...
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Add to cartChapter 1 - 
 
A heating and air-conditioning service technician usually requires _____ to troubleshoot heating and air-conditioning systems. - voltage being supplied to the equipment 
 
A live electrical circuit is _____. - one that is being supplied with energy 
 
_____ is used to operat...
What are the two types of current use din the heating, cooling and refrigeration industries? 
AC (mostly) 
DC 
 
 
_____ current flows in only one direction. 
DC 
 
 
_____ current flows in alternating directions. 
AC 
 
 
What are the advantages of AC current over DC current? 
1) cheaper 
2) easier...
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Add to cartWhat are the two types of current use din the heating, cooling and refrigeration industries? 
AC (mostly) 
DC 
 
 
_____ current flows in only one direction. 
DC 
 
 
_____ current flows in alternating directions. 
AC 
 
 
What are the advantages of AC current over DC current? 
1) cheaper 
2) easier...
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