CSLB C10 TEST 1 EXAM LATEST UPDATE 2025-
2026 EXAM QUESTIONS AND ANSWERS
What is a troffer fixture? - Answer-A recessed lighting fixture in a
suspended ceiling system
When flexibility is not required, AC cable should be stapled or strapped
_____ from a box. - Answer-1'
A house is approximately 2300 sq ft and has all-electric major and
minor appliances (e.g., washer, dryer, furnace, and A/C). The ground
conductor for the above system is at least: - Answer-No. 8
Service drops over public streets, sidewalks, and commercial areas
subject to truck traffic must have a minimum clearance of _____ from
final grade. - Answer-18'
What is the minimum number of receptacles required at each patient
bed location in critical care areas of healthcare facilities? - Answer-
fourteen
The instrument that tests the resistance of wire insulation is a(n): -
Answer-Megger
In the figure shown, the symbol between A and B represents a: -
Answer-transformer winding
, The lead wire on a heating cable is red. This indicates: - Answer-240 V
The minimum size wire that can be used for a 9kW range is: - Answer-
No. 8 copper
What do you fill a conduit with to prevent gas from escaping? -
Answer-sealing compound
What is the maximum amperage No. 10 THW can carry? - Answer-30
amps
When 4, 1.5 volt batteries are wired in a series what is the resulting
voltage? - Answer-6 volts
A 110 W lamp is connected to a 220 V line. What is the resistance? -
Answer-440 ohms
It is unsafe to use a step ladder over _____ in length. - Answer-20'
The conductors and equipment connecting the electrical supply system
to the wiring system is called the: - Answer-service
In knob-and-tube wiring, the minimum clearance between conductors
is: - Answer-3"
2026 EXAM QUESTIONS AND ANSWERS
What is a troffer fixture? - Answer-A recessed lighting fixture in a
suspended ceiling system
When flexibility is not required, AC cable should be stapled or strapped
_____ from a box. - Answer-1'
A house is approximately 2300 sq ft and has all-electric major and
minor appliances (e.g., washer, dryer, furnace, and A/C). The ground
conductor for the above system is at least: - Answer-No. 8
Service drops over public streets, sidewalks, and commercial areas
subject to truck traffic must have a minimum clearance of _____ from
final grade. - Answer-18'
What is the minimum number of receptacles required at each patient
bed location in critical care areas of healthcare facilities? - Answer-
fourteen
The instrument that tests the resistance of wire insulation is a(n): -
Answer-Megger
In the figure shown, the symbol between A and B represents a: -
Answer-transformer winding
, The lead wire on a heating cable is red. This indicates: - Answer-240 V
The minimum size wire that can be used for a 9kW range is: - Answer-
No. 8 copper
What do you fill a conduit with to prevent gas from escaping? -
Answer-sealing compound
What is the maximum amperage No. 10 THW can carry? - Answer-30
amps
When 4, 1.5 volt batteries are wired in a series what is the resulting
voltage? - Answer-6 volts
A 110 W lamp is connected to a 220 V line. What is the resistance? -
Answer-440 ohms
It is unsafe to use a step ladder over _____ in length. - Answer-20'
The conductors and equipment connecting the electrical supply system
to the wiring system is called the: - Answer-service
In knob-and-tube wiring, the minimum clearance between conductors
is: - Answer-3"
