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CSLB B LICENSE GENERAL CONTRACTOR EXAM QUESTIONS & ANSWERS 2024/2025 ( A+ GRADED 100% VERIFIED)
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CSLB B LICENSE GENERAL CONTRACTOR EXAM QUESTIONS & ANSWERS 2024/2025 ( A+ GRADED 100% VERIFIED)
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CSLB B LICENSE GENERALCONTRACTOR EXAM
A "Tee-Wye" is a:
A. Plumbing fitting
B. Electrical wire
C. Type of saw
D. Type of wood - ANS - A tee-wye is a plumbing fitting.
A 6x6: #10, or 6x6: 10/10, wire mesh is used on a: - ANS - A slab on grade
A collar beam is a? - ANS - A horizontal member that ties opposite rafters together.
A curb and threshold are not necessary in a shower:
A. Where children use it
B. For drain water
C. When designed for wheel chair use
D. Curbs and thresholds are always required - ANS - A curb and threshold is not
required when designed for wheel chair use.
A Freon recovery system is NOT required when:
A. Recharging a small appliance
B. Replacing a burnt out rotor in a hermetic unit
C. Overhauling a rooftop A/C unit
D. Scrapping an old refrigeration unit - ANS - A freon recovery system would not be
required when recharging a small appliance.
A Freon recovery system is required when:
A. Replacing a burnt out rotor in a hermetic unit
B. Overhauling a rooftop A/C unit
C. Scrapping an old refrigeration unit
D. All of the above - ANS - All of the above
,A material CANNOT be classified as Type-A soil if it is fissured, previously disturbed, or:
A. Subject to vibration from heavy traffic or pile driving
B. Contains a large proportion of clay material
C. Contains caliche or hardpan
D. Has a high compressive strength - ANS - Type A soil can not be fissured,
previously disturbed or subject to vibration from heavy traffic or pile driving.
A Pittsburgh joint is used in: - ANS - HVAC ductwork
A self-closing door is best for a doorway between: - ANS - Kitchen and garage.
A stairway's maximum total riser and tread dimension would be:
A. 1 riser + 2 treads = 22"
B. 2 risers + 1 tread = 25"
C. 2 treads + 1 riser = 25"
D. Dependent on customer's request - ANS - 2 risers + 1 tread = 25"
A stove unit without insulation must be how many inches away from combustible
materials? - ANS - An uninsulated stove unit must be at least 6" away from
combustible materials.
A waste water pipe, or DWV ( Drain-Waste-Vent), can have an outlet into any of the
following EXCEPT a:
A. Sanitary Drain
B. Sewer
C. Natural Pond
D. Septic tank, seepage pit, or cesspool. - ANS - Natural Pond
According to Energy Efficiency Standards, general lighting in kitchens must have an
efficacy of at least how many lumens per watt? - ANS - Lighting in a kitchen must
have at least 40 lumbers per watt.
According to the UBC, the minimum clearance from a masonry fireplace to wood
framing members is? - ANS - 2" is the minimum clearance from a masonry fireplace to
wood framing members.
,According to the UBC, what is the proper height of a handrail for a stairway? - ANS -
A handrail for a stairway must be at least 34" high and no more than 38".
After drywall has been screwed into place, when do you check the placement of the
screws? - ANS - Before taping.
An ammeter is used in ________ with a(n) _________ circuit:
A. series, energized
B. series, de-energized
C. parallel, energized
D. paralle, de-energized - ANS - An ammeter is used in series with an energized
circut.
An excavation project requires a contractor to dig a trench near a utility line. What is the
proper procedure? - ANS - Contact the utility company before digging.
An owner typically holds 10% retention from progress payments because? - ANS - As
protection against mechanics liens.
An underground utility line is marked with paint. What is the minimum distance
mechanical excavating equipment must stay from the paint mark? - ANS - 24" is the
minimum distance mechanical excavating equipment must stay from utility paint marks.
Approximately, how many 4" x 4" ceramic tiles would you need to tile a 30" x 60" shower
pan and three walls 5' high? Use 1/4" grout lines, assume no curb, and allow 15% for
waste.
A. 439
B. 574
C. 720
D. 800 - ANS - 574
At an excavation, an Underground Service Alert (U.S.A) marking on the dirt that uses
red paint or chalk means: - ANS - Electric power
Basement concrete walls should have a minimum test PSI at 30 days of: - ANS - A
basement concrete wall should have a minimum of 3000 psi after 30 days.
, Beam-type platforms for suspended scaffolds must have stringers of lumber at least
_______ set on edge. - ANS - 2" x 6"
Before applying latex paint to the surface of an oil paint on wood trim, which procedure
is appropriate? - ANS - Wash the surface with TSP
Before placing tile with mastic, you should: - ANS - Seal the surface.
Before wallpaper is applied to new drywall, it should be: - ANS - New drywall should
be sealed before applying wallpaper.
Bricks on a job site should be covered: - ANS - Bricks should be covered when you
leave the job site at the end of each workday.
Can you directly nail hardwood flooring to a concrete slab? - ANS - You should never
nail concrete directly to a concrete slab.
Cemented soil: - ANS - Cannot be crushed into individual particles with fingers
Concrete block is specified for a wall 50' long and 6' high. Approximately how many
concrete blocks 8"W x 8"H x 16"L
are required for the wall? - ANS - 350
Height x Length wall divided by Height x Length of block.
Dividing volts by amps gives: - ANS - Dividing volts by amps gives you ohms.
Dividing watts by amps gives you: - ANS - Volts
Fiberglass insulation for walls should be attached to:
A. The interior of the studs
B. The face of the studs
C. The top and bottom of the studs
D. There is no need to attach - ANS - There is no need to attach.
For a building to be square, you need? - ANS - Opposite walls need to be parallel and
diagonals need to measure equally.
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