Exam Questions and CORRECT Answers
An asphalt distributor having an 8-ft long spray bar will be used to apply a prime coat at a
residual application rate of 0.3 gal/sy. The road being paved is 16 ft wide and 2,200 ft in length.
How many gallons of liquid asphalt cement will be required (gal)? - CORRECT
ANSWER - 1173.33
An asphalt distributor having a 12-ft long spray bar will be used to apply a tack coat at a residual
application rate of 0.05 gal/sy. The road being paved is 24 ft wide and 2 miles in length.
How many gallons of liquid asphalt cement will be required (gal)? - CORRECT
ANSWER - 1408
An asphalt plant can produce 300 tph. A project requires paving individual 10-ft lanes with an
11in. lift and density averaging 115 lb/sy*in. What average paver speed will match the plant
production (ft/min)? - CORRECT ANSWER - 7.122
An asphalt plant can produce 240 tph. A project requires paving individual 12-ft lanes with a 1-
in. lift and density averaging 112 lb/sy*in.
What average paver speed will match the plant production (ft/min)? - CORRECT
ANSWER - 53.7
An asphalt plant can produce 360 tph. A project requires paving individual 11.5-ft lanes with a 2-
in. lift and density averaging 110 lb/sy*in.
What average paver speed will match the plant production (ft/min)? - CORRECT
ANSWER - 42.55
, A concrete batch plant has a batching chamber capacity of 12 cy and an average batching cycle
time of 2.5 min. Plant efficiency is 70%.
What is the estimated batching production in cy/hr? - CORRECT ANSWER - 201.6
A concrete batch plant has a batching chamber capacity of 11 cy and an average batching cycle
time of 2 min. Plant efficiency is 80%. What is the estimated batching production in cy/hr? -
CORRECT ANSWER - 264
A concrete batch plant has a batching chamber capacity of 12.5 cy and an average batching cycle
time of 3 min. Plant efficiency is 84%.
What is the estimated batching production in cy/hr? - CORRECT ANSWER - 210
A batch plant mixes 12 tons of asphalt mix with an average mixing cycle of 1.5 min. Plant
efficiency is 92%. Estimate plant production in ton/hr - CORRECT ANSWER - 441.6
A batch plant mixes 5 tons of asphalt mix with an average mixing cycle of 1 min. Plant
efficiency is 95%. Estimate plant production in ton/hr. - CORRECT ANSWER - 285
A specification requires a residual application rate of 0.045 gal/sy. The distributor spray bar
coverage is 8 ft. Estimate the gallons of emulsion needed for a 16 ft wide 2-mile stretch of
paving. - CORRECT ANSWER - 845 gallons
A specification requires a residual application rate of 0.03 gal/sy. The distributor spray bar
coverage is 6 ft. Estimate the gallons of emulsion needed for a 12 ft wide and 2,200 ft stretch of
paving. - CORRECT ANSWER - 88 gallons
What is the surface treatment area for the first and second course (sy)? Note: the numbers are the
same - do not add them together. - CORRECT ANSWER - 4878 sy