• California CSLB
C10 Electrical 09/11/2026
Exam
CSLB C10 Test 4 | 120 Questions and Answers
() (Verified Answers) COMPLETE
FREQUENTLY MOST TESTED QUESTIONS WITH
COMPLETE SOLUTION /GET IT 100%
ACCURATE!(Graded A+)
In another case a motor has an over current protector but this time just the thermal protector causes the motor
to trip off. What could be the cause?
A
Heat produced in the conductor.
B
Thermal element is too large.
P 1
, • California CSLB
C10 Electrical 09/11/2026
Exam
C
Limited thermal elements.
D
The motor is too small. - Correct Answer :The Correct Answer Is A
Thermal overload relays are used to protect the motor. They are sized usually between 115 percent to 125
percent. They respond to the heat generated by the current flowing through them.
The height from the finish grade floor of conduit running to the outside of a gas station garage would be _____.
A
6 in.
B
12 in.
C
18 in.
D
20 in. - Correct Answer :The Correct Answer Is C
The height from the finish grade floor of conduit running to the outside of a gas station garage would be 18 in.
A hole is drilled in a non-supporting stud less than 1-1/4 in. from the end. What is a common practice?
A
It s non-bearing, so there s no problem.
B
Install a 1/16 in. steel plate over hole.
C
Replace stud.
D
P 2
, • California CSLB
C10 Electrical 09/11/2026
Exam
Notify the building inspector. - Correct Answer :The Correct Answer Is B
What instrument is used to check the power of a circuit?
A
An ammeter
B
A wattmeter
C
A voltmeter
D
An omeger - Correct Answer :The Correct Answer Is B
A wattmeter is preferred, however, you could calculate the power with a voltage reading from a voltmeter and a
current reading from an ammeter and multiply the two values.
The biggest problem with the use of aluminum wiring is _____.
A
splicing
B
cost
C
mil size
D
heat - Correct Answer :The Correct Answer Is D
The biggest problem with the use of aluminum wiring is heat.
You have had to replace the ballast in a fluorescent fixture. What should be done with the bad ballast?
P 3
, • California CSLB
C10 Electrical 09/11/2026
Exam
A
Check for PCB s.
B
Throw it in trash.
C
Place it in recycling.
D
Leave it for owner. - Correct Answer :The Correct Answer Is A
Dispose of it properly.
You are required to add a duplex receptacle to a box that is connected with a brranch circuit. How are the
ground conductors connected?
A
Pigtailed together and hung in box.
B
They are kept seperated.
C
Pigtailed together and attached to the receptacle.
D
None of the above. - Correct Answer :The Correct Answer Is C
A motor is running in the wrong direction. What can be done about it?
A
For three phase motors, reverse any two leads.
B
You can usually switch phase A and C.
P 4
C10 Electrical 09/11/2026
Exam
CSLB C10 Test 4 | 120 Questions and Answers
() (Verified Answers) COMPLETE
FREQUENTLY MOST TESTED QUESTIONS WITH
COMPLETE SOLUTION /GET IT 100%
ACCURATE!(Graded A+)
In another case a motor has an over current protector but this time just the thermal protector causes the motor
to trip off. What could be the cause?
A
Heat produced in the conductor.
B
Thermal element is too large.
P 1
, • California CSLB
C10 Electrical 09/11/2026
Exam
C
Limited thermal elements.
D
The motor is too small. - Correct Answer :The Correct Answer Is A
Thermal overload relays are used to protect the motor. They are sized usually between 115 percent to 125
percent. They respond to the heat generated by the current flowing through them.
The height from the finish grade floor of conduit running to the outside of a gas station garage would be _____.
A
6 in.
B
12 in.
C
18 in.
D
20 in. - Correct Answer :The Correct Answer Is C
The height from the finish grade floor of conduit running to the outside of a gas station garage would be 18 in.
A hole is drilled in a non-supporting stud less than 1-1/4 in. from the end. What is a common practice?
A
It s non-bearing, so there s no problem.
B
Install a 1/16 in. steel plate over hole.
C
Replace stud.
D
P 2
, • California CSLB
C10 Electrical 09/11/2026
Exam
Notify the building inspector. - Correct Answer :The Correct Answer Is B
What instrument is used to check the power of a circuit?
A
An ammeter
B
A wattmeter
C
A voltmeter
D
An omeger - Correct Answer :The Correct Answer Is B
A wattmeter is preferred, however, you could calculate the power with a voltage reading from a voltmeter and a
current reading from an ammeter and multiply the two values.
The biggest problem with the use of aluminum wiring is _____.
A
splicing
B
cost
C
mil size
D
heat - Correct Answer :The Correct Answer Is D
The biggest problem with the use of aluminum wiring is heat.
You have had to replace the ballast in a fluorescent fixture. What should be done with the bad ballast?
P 3
, • California CSLB
C10 Electrical 09/11/2026
Exam
A
Check for PCB s.
B
Throw it in trash.
C
Place it in recycling.
D
Leave it for owner. - Correct Answer :The Correct Answer Is A
Dispose of it properly.
You are required to add a duplex receptacle to a box that is connected with a brranch circuit. How are the
ground conductors connected?
A
Pigtailed together and hung in box.
B
They are kept seperated.
C
Pigtailed together and attached to the receptacle.
D
None of the above. - Correct Answer :The Correct Answer Is C
A motor is running in the wrong direction. What can be done about it?
A
For three phase motors, reverse any two leads.
B
You can usually switch phase A and C.
P 4
