CSLB C10 EXAM NEWEST ACTUAL EXAM
CSLB C10 EXAM NEWEST ACTUAL EXAM COMPLETE ALL
QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+||BRAND NEW!!
If an electrical sub-contractor finds a conflict in the plans, who should he/she
contact?
a) Local building inspector
b) Prime contractor
c) Electrical inspector
d) Project architect
Correct Answer: b) Prime contractor
_____ size screws are required for mounting light fixtures.
a) No. 6-32
b) No. 8-32
c) No. 10-24
d) No. 12-24
Correct Answer: b) No. 8-32
The demand factor of a fixed electric space heater is 65%. A central air-
conditioning unit in the house has a demand factor of 100%. What percent should
be added to the heating circuit (i.e., space heater)?
a) 65%
b) 100%
c) 75%
d) 50%
Correct Answer: b) 100%
1|Page
, CSLB C10 EXAM NEWEST ACTUAL EXAM
Portable power tools at a job site require:
a) Surge protector
b) GFCI
c) Dedicated circuit
d) Step-down transformer
Correct Answer: b) GFCI
If a colleague is lying unconscious on a high-tension wire, how should you help?
a) Grab by any part of wet clothes
b) Grab by any part of dry clothes except shoes
c) Pull directly with bare hands
d) Move with rubber gloves
Correct Answer: b) Grab by any part of dry clothes except shoes
An example of inductive dielectric heating is a(n):
a) Electric oven
b) Microwave
c) Space heater
d) Infrared lamp
Correct Answer: b) Microwave
The greatest difference in potential between any two conductors of a circuit is
called:
a) Peak voltage
b) Root Mean Square (RMS)
c) Line-to-neutral voltage
d) Average voltage
Correct Answer: b) Root Mean Square (RMS)
2|Page
, CSLB C10 EXAM NEWEST ACTUAL EXAM
What is the power rating, in kW, of a three-phase transformer that supplies 480 V
at 60 A with a power factor of 90%?
a) 45 kW
b) 50 kW
c) 60 kW
d) 40 kW
Correct Answer: a) 45 kW
Bending conduit is best done with a:
a) Pipe bender
b) Field hickey
c) Hacksaw
d) Adjustable wrench
Correct Answer: b) Field hickey
The smallest conductor permitted for general wiring is No. ______ copper or No.
______ aluminum.
a) 12 ... 10
b) 14 ... 12
c) 10 ... 8
d) 16 ... 14
Correct Answer: b) 14 ... 12
One mil equals _____ in thickness.
a) 0.01"
b) 0.001"
3|Page
, CSLB C10 EXAM NEWEST ACTUAL EXAM
c) 0.1"
d) 0.0001"
Correct Answer: b) 0.001"
The safe-distance requirement from overhead electrical lines energized between
600 V and 50,000 V for boom-type lifting and hoisting equipment when not in use
is:
a) 10'
b) 6'
c) 3'
d) 12'
Correct Answer: b) 6'
What is required when employees are working on energized equipment?
a) Safety glasses only
b) Personal protection
c) No special protection
d) Insulated boots only
Correct Answer: b) Personal protection
If a co-worker falls down and suffers a deep, bleeding gash to the head, you
should:
a) Move them immediately
b) Apply direct pressure to the wound
c) Give them water
d) Perform CPR immediately
Correct Answer: b) Apply direct pressure to the wound
4|Page
CSLB C10 EXAM NEWEST ACTUAL EXAM COMPLETE ALL
QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+||BRAND NEW!!
If an electrical sub-contractor finds a conflict in the plans, who should he/she
contact?
a) Local building inspector
b) Prime contractor
c) Electrical inspector
d) Project architect
Correct Answer: b) Prime contractor
_____ size screws are required for mounting light fixtures.
a) No. 6-32
b) No. 8-32
c) No. 10-24
d) No. 12-24
Correct Answer: b) No. 8-32
The demand factor of a fixed electric space heater is 65%. A central air-
conditioning unit in the house has a demand factor of 100%. What percent should
be added to the heating circuit (i.e., space heater)?
a) 65%
b) 100%
c) 75%
d) 50%
Correct Answer: b) 100%
1|Page
, CSLB C10 EXAM NEWEST ACTUAL EXAM
Portable power tools at a job site require:
a) Surge protector
b) GFCI
c) Dedicated circuit
d) Step-down transformer
Correct Answer: b) GFCI
If a colleague is lying unconscious on a high-tension wire, how should you help?
a) Grab by any part of wet clothes
b) Grab by any part of dry clothes except shoes
c) Pull directly with bare hands
d) Move with rubber gloves
Correct Answer: b) Grab by any part of dry clothes except shoes
An example of inductive dielectric heating is a(n):
a) Electric oven
b) Microwave
c) Space heater
d) Infrared lamp
Correct Answer: b) Microwave
The greatest difference in potential between any two conductors of a circuit is
called:
a) Peak voltage
b) Root Mean Square (RMS)
c) Line-to-neutral voltage
d) Average voltage
Correct Answer: b) Root Mean Square (RMS)
2|Page
, CSLB C10 EXAM NEWEST ACTUAL EXAM
What is the power rating, in kW, of a three-phase transformer that supplies 480 V
at 60 A with a power factor of 90%?
a) 45 kW
b) 50 kW
c) 60 kW
d) 40 kW
Correct Answer: a) 45 kW
Bending conduit is best done with a:
a) Pipe bender
b) Field hickey
c) Hacksaw
d) Adjustable wrench
Correct Answer: b) Field hickey
The smallest conductor permitted for general wiring is No. ______ copper or No.
______ aluminum.
a) 12 ... 10
b) 14 ... 12
c) 10 ... 8
d) 16 ... 14
Correct Answer: b) 14 ... 12
One mil equals _____ in thickness.
a) 0.01"
b) 0.001"
3|Page
, CSLB C10 EXAM NEWEST ACTUAL EXAM
c) 0.1"
d) 0.0001"
Correct Answer: b) 0.001"
The safe-distance requirement from overhead electrical lines energized between
600 V and 50,000 V for boom-type lifting and hoisting equipment when not in use
is:
a) 10'
b) 6'
c) 3'
d) 12'
Correct Answer: b) 6'
What is required when employees are working on energized equipment?
a) Safety glasses only
b) Personal protection
c) No special protection
d) Insulated boots only
Correct Answer: b) Personal protection
If a co-worker falls down and suffers a deep, bleeding gash to the head, you
should:
a) Move them immediately
b) Apply direct pressure to the wound
c) Give them water
d) Perform CPR immediately
Correct Answer: b) Apply direct pressure to the wound
4|Page
