CSLB TRADE EXAMS WITH VERIFIED
QUESTIONS AND CORRECT ANSWERS
1. A boiler project costs $35400 for materials, $7500 for testing, and $12700 for
commissioning. What amount is due if the contractor has been paid for 45% of these
expenses already?
A. $25020
B. $30580
C. $48100
D. $55600
- ANSWERS-$30580
2. A chiller refrigerates which of the following?
A. Circulating air
B. Carbon dioxide
C. Circulating water
D. Nitrogen
- ANSWERS-Circulating water
3. A contractor determines that a particular job will take three workers an 8 hour day to
install 50 feet of retaining wall reinforcement. The labor cost is $43 per hour and the wall
is 300 feet long. What is the total labor cost for the job?
A. $1032
B. $2150
C. $6192
D. $12900
- ANSWERS-$6,192
4. A contractor is bidding on a job for a 30' high, 60' x 100' metal building. It will be
insulated with rigid board in both the ceiling and walls at a cost of $1.10/sq ft. How much
should be budgeted for insulation costs, assuming 5% waste?
, A. $11088
B. $13860
C. $17160
D. $18018
- ANSWERS-$18018
5. A contractor is bidding to install a walk-in cooler and finds that the compressor costs
$4600 and the piping is $5.76/foot for 200 feet of pipe. If this is 40% of the contract,
what is the contract's total bid price?
A. $5752
B. $9204
C. $10360
D. $14380
- ANSWERS-$14380
6. A contractor is excavating a pad that is 1500 square feet to a depth of 30 inches. The
cost of excavation is $10/cubic yard. What is the total estimated cost of the excavation?
A. $1250
B. $1388.89
C. $1666.67
D. $5000
- ANSWERS-$1388.89
7. A contractor is required to run 197 feet of EMT to the location of the sign. How many
pieces of EMT will be required?
A. 15
B. 19
C. 20
D. 25
- ANSWERS-20
8. A contractor needs 13 receptacles that cost $3.56 each plus sales tax of 7.25%. The
supplier states that for every 10 receptacles that are purchased, the contractor will get
one free of charge. What is the total cost of the receptacles?
A. $42.02
B. $42.72
C. $45.82
, D. $49.66
- ANSWERS-$45.82
9. A lite of glass, which is 42" x 62", has approximately how many square feet of glass?
A. 2604
B. 208
C. 104
D. 18
- ANSWERS-18
10. A packaged water source heat pump eliminates which of the following components?
A. Capacitor
B. Evaporation
C. Reversing valve
D. Air-cooled condenser
- ANSWERS-Air-cooled condenser
11. According dint the California Building Code, how is headroom clearance measured on a
standard stairway?
A. Vertically from the center of each tread
B. Vertically from a line connecting the nosing
C. From the bottom of and parallel to the first riser
D. Perpendicularly from a line connecting the nosings
- ANSWERS-Vertically from a line connecting the nosings
12. According to Cal/OSHA, the top handrail around scaffolding should be at what minimum
height?
A. 36"
B. 38"
C. 42"
D. 48"
- ANSWERS-42"
13. According to Caltrans Standard Specifications, what is the maximum distance allowed
between interior vertical members on a chain-link gate?
A. 2'
B. 4'
C. 6'
QUESTIONS AND CORRECT ANSWERS
1. A boiler project costs $35400 for materials, $7500 for testing, and $12700 for
commissioning. What amount is due if the contractor has been paid for 45% of these
expenses already?
A. $25020
B. $30580
C. $48100
D. $55600
- ANSWERS-$30580
2. A chiller refrigerates which of the following?
A. Circulating air
B. Carbon dioxide
C. Circulating water
D. Nitrogen
- ANSWERS-Circulating water
3. A contractor determines that a particular job will take three workers an 8 hour day to
install 50 feet of retaining wall reinforcement. The labor cost is $43 per hour and the wall
is 300 feet long. What is the total labor cost for the job?
A. $1032
B. $2150
C. $6192
D. $12900
- ANSWERS-$6,192
4. A contractor is bidding on a job for a 30' high, 60' x 100' metal building. It will be
insulated with rigid board in both the ceiling and walls at a cost of $1.10/sq ft. How much
should be budgeted for insulation costs, assuming 5% waste?
, A. $11088
B. $13860
C. $17160
D. $18018
- ANSWERS-$18018
5. A contractor is bidding to install a walk-in cooler and finds that the compressor costs
$4600 and the piping is $5.76/foot for 200 feet of pipe. If this is 40% of the contract,
what is the contract's total bid price?
A. $5752
B. $9204
C. $10360
D. $14380
- ANSWERS-$14380
6. A contractor is excavating a pad that is 1500 square feet to a depth of 30 inches. The
cost of excavation is $10/cubic yard. What is the total estimated cost of the excavation?
A. $1250
B. $1388.89
C. $1666.67
D. $5000
- ANSWERS-$1388.89
7. A contractor is required to run 197 feet of EMT to the location of the sign. How many
pieces of EMT will be required?
A. 15
B. 19
C. 20
D. 25
- ANSWERS-20
8. A contractor needs 13 receptacles that cost $3.56 each plus sales tax of 7.25%. The
supplier states that for every 10 receptacles that are purchased, the contractor will get
one free of charge. What is the total cost of the receptacles?
A. $42.02
B. $42.72
C. $45.82
, D. $49.66
- ANSWERS-$45.82
9. A lite of glass, which is 42" x 62", has approximately how many square feet of glass?
A. 2604
B. 208
C. 104
D. 18
- ANSWERS-18
10. A packaged water source heat pump eliminates which of the following components?
A. Capacitor
B. Evaporation
C. Reversing valve
D. Air-cooled condenser
- ANSWERS-Air-cooled condenser
11. According dint the California Building Code, how is headroom clearance measured on a
standard stairway?
A. Vertically from the center of each tread
B. Vertically from a line connecting the nosing
C. From the bottom of and parallel to the first riser
D. Perpendicularly from a line connecting the nosings
- ANSWERS-Vertically from a line connecting the nosings
12. According to Cal/OSHA, the top handrail around scaffolding should be at what minimum
height?
A. 36"
B. 38"
C. 42"
D. 48"
- ANSWERS-42"
13. According to Caltrans Standard Specifications, what is the maximum distance allowed
between interior vertical members on a chain-link gate?
A. 2'
B. 4'
C. 6'
