ACCURATE QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) LATEST UPDATED
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Truck beds need to be coated with release agent:
A. Each time they are loaded
B. Only when they are dirty
C. As needed to prevent the asphalt from sticking
D. All of the above
Answer- (C.) As needed to prevent the asphalt from sticking
Given: The average sublet density (Gab) of the roadway cores is 2.223
and the Gym for the same sublet is 2.400. The target spread rate was 162
lbs./sq. yds. What is the % of Gym density for the sublet?
Answer- 92.6%
(Y/N:) If a Contractor's Quality Control Core Gab test is 2.225 and the
Verification test on the same ore Gab test is equal to 2.205, do these two
values compare?
Answer- Yes
,If roadway density values are decreasing throughout the shift, the
possible cause could be:
A. Not enough trucks on the project
B. Plant production rate can’t keep up
C. Roller production rate exceeds paver production rate
D. Paver production rate exceeds roller production rate
E. Both B & C
Answer- (D.) Paver production rate exceeds roller production rate
What is the primary difference between an FC-9.5 and a FC-12.5 mix?
A. FC-9.5 uses ARB-5; FC-12.5 uses ARB-12
B. The top size of the aggregate
C. FC-9.5 is open graded; FC-12.5 is coarse graded
D. FC-9.5 uses granite; FC-12.5 uses politic limestone
E. Both A & B
Answer- (B.) - The top size of the aggregate
Emptying the hopper between loads can cause the following:
A. Smooth ride
B. Uniform thickness
C. Proper cross-slope
, D. All of the above
E. None of the above
Answer- (E.) None of the above
If the FC-5 friction course aggregate is cracking under the weight of the
roller:
A. Is the PLI of the roller between 135 and 200?
B. Is the roller driving on a cool mat?
C. Is the temperature of the mix too high?
D. All of the above
E. Both A & B
Answer- (A.) - Is the PLI of the roller between 135 and 200?
Which mix will be easier to compact over a milled surface?
A. An SP-12.5 mix placed 3/4 inch thick?
B. An SP-12.5 mix placed 1 inch thick?
C. An SP-12.5 mix placed 1 1/2 inches thick?
D. None of the above
Answer- (A.) An SP-12.5 mix placed 3/4 inches thick