CSLB C20 TRADE TOUGHER EXAM FINAL
PAPER 2026 QUESTIONS WITH FULL ANSWERS
◉ Cast in place concrete piles. Answer: Maybe poured in a driven
shell that it's collapsed to 85% of its original diameter somewhere
◉ What is the most serious problem you must be aware of when Re
SHORING on a concrete job. Answer: If the Re -SHORING is too tight
stress reversal might result in cost cracks to
◉ Platforms or floors of suspended scaffold must be free from knots
or fractures in pairing their strength and must not be less than how
wide. Answer: 14 inches
◉ What is the minimum size planking for heavy trades scaffold.
Answer: 2"x10"
◉ What is the minimum recommended size Douglas for used as
uprights when SHORING a 10 foot deep by 6 foot wide trench and
type soul. Answer: 3" x 6"
◉ What is the minimum spacing for rebar used in a slab on grade.
Answer: 18"
, ◉ The slope of a ramp for disabled access may not exceed what %.
Answer: 1:12 or 8.3%
◉ What is the minimal nominal diameter permitted for a steel
anchor bolts used to fasten plates to concrete or Masonry
foundations. Answer: 1/2"
◉ What is the minimum and betterment of half inch anchor bolts in
concrete. Answer: 7 inches
◉ How many phases are the Armature windings on an electric.
Answer: Single phase
◉ Which of the following wire sizes has the least watts. Answer: 00
gage
◉ According to the UBC what is the minimum width of a building
vestibule. Answer: 44"
◉ Concrete is poured underwater with what tool. Answer: Tremie
◉ How many watts equals 1 hp. Answer: 746
PAPER 2026 QUESTIONS WITH FULL ANSWERS
◉ Cast in place concrete piles. Answer: Maybe poured in a driven
shell that it's collapsed to 85% of its original diameter somewhere
◉ What is the most serious problem you must be aware of when Re
SHORING on a concrete job. Answer: If the Re -SHORING is too tight
stress reversal might result in cost cracks to
◉ Platforms or floors of suspended scaffold must be free from knots
or fractures in pairing their strength and must not be less than how
wide. Answer: 14 inches
◉ What is the minimum size planking for heavy trades scaffold.
Answer: 2"x10"
◉ What is the minimum recommended size Douglas for used as
uprights when SHORING a 10 foot deep by 6 foot wide trench and
type soul. Answer: 3" x 6"
◉ What is the minimum spacing for rebar used in a slab on grade.
Answer: 18"
, ◉ The slope of a ramp for disabled access may not exceed what %.
Answer: 1:12 or 8.3%
◉ What is the minimal nominal diameter permitted for a steel
anchor bolts used to fasten plates to concrete or Masonry
foundations. Answer: 1/2"
◉ What is the minimum and betterment of half inch anchor bolts in
concrete. Answer: 7 inches
◉ How many phases are the Armature windings on an electric.
Answer: Single phase
◉ Which of the following wire sizes has the least watts. Answer: 00
gage
◉ According to the UBC what is the minimum width of a building
vestibule. Answer: 44"
◉ Concrete is poured underwater with what tool. Answer: Tremie
◉ How many watts equals 1 hp. Answer: 746
