California CSLB C10 Electrical Exam 2025 | Ques ons
with 100% Correct Answers | Verified | Latest Update
The li ing lines should be as ver cal as possible - Ans When using a crane to li a 12,000-gallon
tank out of the excava on, what is the preferable posi on of the rigging lines a!ached to the
tank's li ing eyes?
A. One li ing line should be horizontal
B. The li ing lines should be as far apart as possibles
C. The li ing lines should be as horizontal as possible
D. The li ing lines should be as ver cal as possible
Material that contains more than 1% asbestos - Ans Which of the following describes surfacing
ACM?
A. Material that contains more than 1% asbestos
B. Material that contains more than 0.1% asbestos
C. Material that contains more than 0.01% asbestos
D. Material that contains more than 0.001% asbestos
Inform each of the employers about the asbestos work being performed - Ans When removing
asbestos as a mul -employer work site, the asbestos abatement contractor must do which of
the following?
A. Ensure that all other employers leave the site
B. Inform the local Cal/OSHA office within 48 hours
C. Ensure that all asbestos is removed
,D. Inform each of the employers about the asbestos work being performed.
When airborne exposure exceeds the TWA and excursion limits - Ans When must a contractor
provide and require the use of protec ve clothing?
A. When Class II work requires removal of ACM exceeding 10 square feet
B. When airborne exposure exceeds the TWA and excursion limits
C. When Class II work requires removal of TSI exceeding 25 linear feet
D. When a nega ve exposure assessment is produced
Aluminum - Ans Alterna ng current would most likely be used in GTAW to weld which of the
following metals?
A. Low carbon steel
B. Deoxidized copper
C. Aluminum
D. Stainless steel
1/8" - Ans WHat is the minimum thickness of steel that is covered by the AWS D1.1 Structural
Steel welding code?
A. 1/8"
B. 1/4"
C. 5/16"
D. 3/8"
, Shorten the s ckout - Ans When welding with FCAW, how can the operator control excess
spa!er?
A. Change the drag angle
B. Run stringer beads.
C. Shorten the s ckout
D. Lengthen the s ckout
Basic knowledge of chemistry and the measurements used - Ans To read and properly interpret
laboratory analysis reports as they apply to hazardous sites, a contractor should have which of
the following?
A. The phone number of a contract a the lead agency
B. Basic knowledge of math
C. A contract at Cal/OSHA
D. Basic knowledge of chemistry and the measurements used
235.5 cubic feet - Ans How much material will it take to fill up three round holes drilled into the
ground 25 feet deep and 2 feet in diameter?
A. 235.5 cubic feet
B. 180.5 cubic feet
C. 150.2 cubic feet
D. 100.7 cubic feet
Telephone over electrical conduit with a separa on of at least 12" in between - Ans What
method should be used to install electrical and telephone conduit in the same trench?
, A. Electrical over telephone conduit with a concrete barrier and 4" between them
B. Electrical over telephone conduit with a separa on of at least 12" in between
C. Telephone over electrical conduit secured together every 12"
D. Telephone over electrical conduit with a separa on of at least 12" in between
The paving is cut outside the ditch line by a few inches - Ans When replacing pavement over a
trench, what is meant by "overcuAng"?
A. All wide spots and bell holes are cut square before paving
B. Paving is reinstalled one inch thicker than what was removed
C. The trench is base-paved and capped later
D. The paving is cut outside the ditch line by a few inches
4.0 mg/L - Ans What is the maximum fluoride level permi!ed in drinking water?
A. 2.0 mg/L
B. 4.0 mg/L
C. 6.0 mg/L
D. 8.0 mg/L
K and L - Ans When installing hard copper piping underground, what types of piping should a
contractor use?
A. K and L
B. K and M
C. L and M
with 100% Correct Answers | Verified | Latest Update
The li ing lines should be as ver cal as possible - Ans When using a crane to li a 12,000-gallon
tank out of the excava on, what is the preferable posi on of the rigging lines a!ached to the
tank's li ing eyes?
A. One li ing line should be horizontal
B. The li ing lines should be as far apart as possibles
C. The li ing lines should be as horizontal as possible
D. The li ing lines should be as ver cal as possible
Material that contains more than 1% asbestos - Ans Which of the following describes surfacing
ACM?
A. Material that contains more than 1% asbestos
B. Material that contains more than 0.1% asbestos
C. Material that contains more than 0.01% asbestos
D. Material that contains more than 0.001% asbestos
Inform each of the employers about the asbestos work being performed - Ans When removing
asbestos as a mul -employer work site, the asbestos abatement contractor must do which of
the following?
A. Ensure that all other employers leave the site
B. Inform the local Cal/OSHA office within 48 hours
C. Ensure that all asbestos is removed
,D. Inform each of the employers about the asbestos work being performed.
When airborne exposure exceeds the TWA and excursion limits - Ans When must a contractor
provide and require the use of protec ve clothing?
A. When Class II work requires removal of ACM exceeding 10 square feet
B. When airborne exposure exceeds the TWA and excursion limits
C. When Class II work requires removal of TSI exceeding 25 linear feet
D. When a nega ve exposure assessment is produced
Aluminum - Ans Alterna ng current would most likely be used in GTAW to weld which of the
following metals?
A. Low carbon steel
B. Deoxidized copper
C. Aluminum
D. Stainless steel
1/8" - Ans WHat is the minimum thickness of steel that is covered by the AWS D1.1 Structural
Steel welding code?
A. 1/8"
B. 1/4"
C. 5/16"
D. 3/8"
, Shorten the s ckout - Ans When welding with FCAW, how can the operator control excess
spa!er?
A. Change the drag angle
B. Run stringer beads.
C. Shorten the s ckout
D. Lengthen the s ckout
Basic knowledge of chemistry and the measurements used - Ans To read and properly interpret
laboratory analysis reports as they apply to hazardous sites, a contractor should have which of
the following?
A. The phone number of a contract a the lead agency
B. Basic knowledge of math
C. A contract at Cal/OSHA
D. Basic knowledge of chemistry and the measurements used
235.5 cubic feet - Ans How much material will it take to fill up three round holes drilled into the
ground 25 feet deep and 2 feet in diameter?
A. 235.5 cubic feet
B. 180.5 cubic feet
C. 150.2 cubic feet
D. 100.7 cubic feet
Telephone over electrical conduit with a separa on of at least 12" in between - Ans What
method should be used to install electrical and telephone conduit in the same trench?
, A. Electrical over telephone conduit with a concrete barrier and 4" between them
B. Electrical over telephone conduit with a separa on of at least 12" in between
C. Telephone over electrical conduit secured together every 12"
D. Telephone over electrical conduit with a separa on of at least 12" in between
The paving is cut outside the ditch line by a few inches - Ans When replacing pavement over a
trench, what is meant by "overcuAng"?
A. All wide spots and bell holes are cut square before paving
B. Paving is reinstalled one inch thicker than what was removed
C. The trench is base-paved and capped later
D. The paving is cut outside the ditch line by a few inches
4.0 mg/L - Ans What is the maximum fluoride level permi!ed in drinking water?
A. 2.0 mg/L
B. 4.0 mg/L
C. 6.0 mg/L
D. 8.0 mg/L
K and L - Ans When installing hard copper piping underground, what types of piping should a
contractor use?
A. K and L
B. K and M
C. L and M
