Download CSLB B LICENSE GENERAL CONTRACTOR EXAM 2025| 330 QUESTIONS AND ANSWERS|ALREADY GRADED A+ and more Exams Construction in PDF only on Docsity!
CSLB B LICENSE GENERAL CONTRACTOR EXAM
2025 - 2026|ACTUAL 330 QUESTIONS AND
ANSWERS|ALREADY GRADED A+
If unused mortar stiffens due to hydration of cement, what must you do? Discard the mortar What minimum time must you wait before caulking or grouting new tiles? 24 - 48 Hours How long should you wait before installing tile on a shower pan? 24 Hours Unstable dry rock, angular gravel, sandy loam, and cohesive soils having compressive strengths greater than 0.5 and less than 1. tons/sq ft (tsf), are typical examples of: Type-B Soils If 65 street lights are fed by a 2275 volt series circuit, what is the voltage across each light? 35V In a series circuit, the total voltage is divided equally.
For safety reasons, the maximum simple slope of an excavation, up to 20 ft deep, in Type-B soil is: 1:1 (45°) A Pittsburgh joint is used in: HVAC ductwork The drain for a pressure relief valve on a water heater should be extended to: The outside of the building What is the minimum slope toward the drain of a shower pan? 1/4" per foot (2%) What is the diameter of #3 rebar? 3/8" If a vendor fails to provide an MSDS, you have the right to call: Cal/OSHA or DOSH When installing a door jamb, you need shims at:
Which of the following is NOT a type of wood block flooring? A. Parquet B. Wood Mosaic C. Wood Tile D. All of the above. Wood tile Lightweight concrete is best used for: A. Curb and Gutter B. Second floor decking C. First floor slab on grade D. Footings Second floor decking The tool used to carry grout needed to patch a small hole is a: A. Hawk B. Poling board C. Spot board
D. Mason's scutch Spot Board Which pipe is NOT appropriate for industrial wastes? A. Cast iron B. Schedule 40 ABS DWV C. Extra strength vitrified clay D. Copper Copper Where do you need a fire wall? A. Between a living room and a bedroom B. Between a bedroom and a bathroom C. Between a kitchen and a bath D. A separation wall between a dwelling and an attachment A separation wall between a dwelling and an attachment.
C. Windows D. Slabs Windows. A stile is the vertical edges of the window and the rails are the bottom and top. What does a high slump test indicate? Too much water. Metal concrete forms should be? A. Oiled B. Watered C. Placed against gravel D. Discarded after each use Oiled What does the R mean in a description of insulation? Resistance
What kind of door would you install for someone with a disability? A. Automatic with minimum of 3 seconds to close B. Automatic with maximum of 5 seconds to open C. Manual with maximum of 8.5 pounds to operate D. Either A or C Either A or C Triple-walled metal chimney installations are regulated by: ICC ICC-IBC-IRC is the international code council. IBC is international building code commercial. IRC is the international residential code. If you are a general contractor, you should call a specialty contractor when: You encounter an unfamiliar trade.
When you say a wall is perfect it is: Both plumb and straight. The purpose of a batter board in concrete work is: Support layout strings when location foundations. What is the difference between a hip jack rafter and a common rafter? A hip jack runs from the top plate to a hip rafter, but a common rafter runs to the ridge board. When should you float a concrete surface? As soon as the water sheen evaporates When installing drywall screws you should: A. Countersink
B. Drive just below the face of the board C. Leave slightly above the surface D. Use the highest torque setting Drive just below the face of the board without breaking the paper. Before placing tile with mastic, you should: Seal the surface. At an excavation, an Underground Service Alert (U.S.A) marking on the dirt that uses red paint or chalk means: Electric power How many diameters is the minimum lap (overlap) between sections of rebar in reinforced masonry? A. 7 B. 12 C. 24 D. 30 30 diameters
B. Any roofing tool C. Roofers hatchet D. Masking tape A slathers stake A slathers stake looks like the head of a hammerhead shark. The head forms a T with the shaft, but the head is slightly bent. It provides a flat, straight edge for cutting and trimming your slate. When determining the layout of a residential building, the most important element to take into account is the: Property lines Where should the first upper cabinet be installed? At an inside corner Cemented soil: Cannot be crushed into individual particles with fingers
Which tool is best for measuring odd angles in an existing structure? Bevel square From the following list, the best choice of woods for exterior carpentry are: A. Redwood and bald cypress B. Spruce and fir C. Pine and sugar maple D. Fir and hemlock Redwood and bald cypress If a contractor discovers damaged utilities when starting a job, he should: Call the utility department involved. Type-C soils have a compression strength of no more than 0.5 tsp. Which of the following would not be classified as a Type-C soil? A. Rounded gravel
B. Shear panel-paper-siding C. Paper-siding-shear panel D. Shear panel-siding-paper Shear panel-paper-siding What is the slope in degrees of a roof with a rise of 12 and a run of 12? A. 22.5 degrees B. 45.0 degrees C. 50.0 degrees D. 90.0 degrees 45 degrees. How deep must electrical be in a public area if the conduit is PVC and there is no vehicle traffic? 18" In electrical work, the green wire is the: Grounding conductor
What is the longest length ladder that Cal/OSHA approves? 44' is the longest ladder Cal/OSHA approves Under what condition can you add one additional layer to existing asphalt shingles on a roof? If the roof is less than three layers. How should a residential water heater be protected from earthquakes? It should be attached to a wall. You would use a 1.5 GPM fixture when: You want to conserve water The best way to handle an I-beam is with a: Nylon strap
Soldering of a copper pipe fitting is completed when: Solder appears all around the joint. What is the maximum spacing of single nails in a single layer of drywall on the ceiling? 7" is the maximum spacing of single nails in a single layer of a drywall ceiling. In construction, a hazardous area should be marked with what color tape? Yellow tape should be used to mark off a hazardous area. Green board would be used for? Bathroom walls or possible wet locations. The minimum size vent for a water closet is: 1 1/2" minimum vent size for a water closet.
Which tool would you use to apply mortar 1/2" thick? Trowel When preparing plaster for a ceiling, which quantity is most important to monitor in the mixture? Water In a work space, travel distance to a fire extinguisher must not be more than how many feet? 75' is the maximum travel distance to a fire extinguisher in a work space. What sort of subfloor material would you use if the edges meet over the floor joist? Plywood In framing, a look out is a(n): Cantilevered beam
