CLSB B GENERAL EXAM 2024-2025 |ACTUAL COMPLETE EXAM
QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+.
PTICH - ANSWER-rise/span
what size of a circuit breaker can be installed on a line with 7 outlets
14 AWG wire? - ANSWER-15 amp; according to code, the conductor
ampacity rating for a 14 gauge wire is 15 amps. for 12 gauges wire is
20 amps. the number of outlets does not determine the size of circuit
breaker.
how many roof squares are in the roof measuring 45' by 50'? -
ANSWER-22.5; (45x50) / 100 (roofing squares made of 10'x10').
total drop for a 120' pipe with a 2% slope? - ANSWER-2'5" =
120x2%=2.4
how many 4"x4" tiles do you need to tile 30"x60" shower floor and
three walls 60" high with 1/4" grout? allow 10% for waste. -
ANSWERstep 1: calculate total area: shower pan: 30"x60" = 1800
square inches. two small walls 2 @( 30"x60")= 3600 square inches.
back wall= 60"x60"=3600 total= 9000 square inches.
step 2: calculate tile coverage including grout. 4 1/4" x4 1/4" = 18.0625
step 3: divide 9000/18.0625 = 499 tiles step 4: add 10% 499x.10= 50
tiles
,549
the load area of skylight is equal to - ANSWER-inside dimension of a
deck mounted skylight; inside area of the skylight curb; rough
opening in the roof.
how many kWh will be consumed by a 500w lightbulb running for 3
hours? - ANSWER-1.5 kWh. step one solve for total watt-hours= 500w
x 3=1500 step 2 convert: 1 kilowatt= 1000 watt
1500/1000=1.5
how many board feet do you need for a wall 20' long with 2x4 studs 8
feet high spaced at 16 o.c.? - ANSWER-Step 1: convert wall length
and stud height into inches, by multiplying length by 12.
wall: 20'x12=240" stud: 8'x12=96" step 2: divide wall length by the
spacing of the studs 240"/16"= 15 studs + 1 starter= 16 studs total
step 3: figure out board feet board feet= thickness in inches x width
in inches x length in inches / 144.
2"x4"x96"/144=5.33 board feet per stud.
step 4: multiply board feet by number of studs
5.33x16=85.28 board feet.
which of the following is a low slope roof system - ANSWER-modified
bitumen; can be applied to a slope no less than 1/4:12
the slope of a roof is the sum of the ___ divided by the ____ -
ANSWER-rise;run
, calculate the total cost of trusses needed for a new framing project,
where a gable roof is 50' long, each truss is spaced every 24" and the
price of each truss is $80. - ANSWER-2080
what is a permanent or well-known elevation reference point? -
ANSWER-benchmark
in a L shaped Kitchen, two parallel lines are 24' each and you are told
that the remaining lines are 12' each. to install a hardwood floor, what
area are you covering? - ANSWER-432
a brick wall has a total of 44 courses. if 3 bricks and 3 mortar joints
equal 8", then how hieght is the wall - ANSWER-10 feet
how many square feet is found in a single roofing square of
composition shingles - ANSWER-100 square feet
how many bundles of 30-year asphalt shingles are in a square of
roofing - ANSWER-3 bundles
who is finally responsible for an approved set of plans – ANSWER
contractor
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