Cslb Concrete C8 License Practice Test 1 Complete Questions And Detailed Solutions Latest Update This Year Just Released

CSLB CONCRETE C8 LICENSE PRACTICE TEST 1-
COMPLETE QUESTIONS AND DETAILED SOLUTIONS
LATEST UPDATE THIS YEAR JUST RELEASED


Question 1: A mix with a higher percentage of rock has the
advantage of:
Answer:

Being less expensive.


Question 2: For quick dry applications you would most commonly
use which kind of concrete?
Answer:

Type 3


Question 3: You have 5 employees that work for eight hours. How
much would you have to pay your employees, if one of them is an
apprentice who makes $17/hour, supervisor makes $33/hour, and
three journeymen make $22/hour?
Answer:

$928.00


Question 4: Explanation: Apprentice: $17 x 8 hours =
$136Supervisor: $33 x 8 hours = $264Journeymen: 3 x $22 x 8
hours = $528Total: $136 + $264 + $528 = $928 Refer to the house
plan. How many square feet is the foundation slab?
Answer:

1844 sq ft

,Question 5: Explanation: The easiest way to solve for the area of
the slab is to image a full rectangle of the slab and subtract void
areas from the area of the slab. Rectangle area: 28.167' x 71.5'=
2013.94 sq ftLeft void area: 6.667' x 1.83' = 12.2 sq ftCenter void
area: 11.5' x 1.83' = 21.045 sq ftRight void area: 9.167' x 15' =
137.505Net area of the foundation slab: 2013.94 - 12.2 - 21.045 -
137.505 = 1843.19 sq ft. Weather conditions may make placing
concrete inadvisable, including:
Answer:
High winds and high temperatures


Question 6: Refer to the house plan. How many cubic yards of
concrete needs to be ordered for the foundation slab that is 4
inches thick?
Answer:

23 cubic yards


Question 7: Explanation: The easiest way to solve for the area of
the slab is to image a full rectangle of the slab and subtract void
areas from the area of the slab. Rectangle area: 28.167' x 71.5'=
2013.94 sq ftLeft void area: 6.667' x 1.83' = 12.2 sq ftCenter void
area: 11.5' x 1.83' = 21.045 sq ftRight void area: 9.167' x 15' =
137.505Net area of the foundation slab: 2013.94 - 12.2 - 21.045 -
137.505 = 1843.19 sq ft.Traditional Method:Multiply the area of the
slab by the thickness of the slab (in inches).1843.19 x 0.333' =
613.78 cubic feetConvert the volume into cubic yards.613.78 ÷ 27 =
22.73 cubic yards (rounded up to 23 cubic yards)Industry
Method:Divide the area by 81 to get cubic yards.1843.19 sq ft ÷ 81 =
22.76 cubic yards (rounded up to 23 cubic yards) What is the
spacing of anchor bolts from ends of sill plates?

,Answer:

4" min, 12" max


Question 8: In a beam not exposed to weather or soil; what is the
minimum coverage for #4 reinforcing bar:
Answer:

1 inch


Question 9: When welding bars on sight, special attention should
be paid to safety and ____________.
Answer:

The exact composition of the materials to be welded


Question 10: Explanation: Not all alloys used in reinforcing bar are
compatible. What is the maximum spacing of the control joints in a
slab that is to receive a floor finish?
Answer:

joints are not necessary


Question 11: Explanation: If the carpet, hardwood floor, or other
floor finishes are to be installed on the slab, the control joints are
not necessary since the floor finishes will cover unsightly cracks in
the slab. Finishing with a steel float:
Answer:

Reduces risk of cracking.


Question 12: Please refer to the house plan. How many cubic yards
of concrete is required for the patio (excluding sidewalk), if the slab

, is 4 inches thick?
Answer:

5.75 cubic yards


Question 13: Explanation: Traditional MethodMultiply area of the
slab by the thickness of the slab to get the volume in cubic feet.457
x 4" or .333 = 152.181 cubic feetConvert cubic feet into cubic yards
by diving the cubic feet by 27.152.181 ÷ 27 = 5.6 cubic yards
Industry MethodDivide the area of the slab (sq ft) by 81 to get cubic
yards.457 sq ft ÷ 81 = 5.6 cubic yards Round up to select the best
answer, which is 5.75 cubic yards. What is the minimum size of
anchor bolt can be used in seismic category D?
Answer:

#4


Question 14: Explanation: The building code requires 1/2" anchor
bolt to be used in seismic category D or less. What size of footing
required for a 2-story building with a load bearing value of
1,500psf?
Answer:

15


Question 15: How many cubic yards of concrete is required for a 4"
slab with the circumference of 25 feet?
Answer:

3/4 cubic yard(s)


Question 16: Explanation: Since the circumference was provided to
calculate the area of the circle, we need to figure out the diameter