Pipe and Excavation Contracting Test.
Questions with Correct Verified
Answers. Latest 2025-2026. Graded A
____ testing is NOT a type of testing that is usually specified for pipeline
testing.
A. Visual
B. Water
C. Air
D. Hydrostatic - ANSD. Hydrostatic
248/249
A .75 percent rise indicates?
A. A rise of 75 feet in 100 feet
B. A rise of 7.5 feet in 100 feet
C. A rise of .75 feet in 100 feet
D. A rise of 75 inches in 100 feet - ANSC. A rise of 0.75 feet in 100 feet
119
A 0.75 percent rise indicates?
1
,A. A rise of 75 feet in 100 feet
B. A rise of 7.5 feet in 100 feet
C. A rise of 0.75 feet in 100 feet
D. A rise of 0.75 inches in 100 feet - ANSC. A rise of 0.75 feet in 100 feet
120
A 300 cubic yard volume of loose soil with a load factor of 0.769 is to be
moved. The average hourly production rate to be expected is cubic yards.
A. 390.1 bank
B. 390.1 loose
C. 230.7 bank
D. 230.7 loose - ANSC. 300 x .769 = 230.7
66
A 480' long run of 21" PVC is placed between two manholes. The invert
elevation of the pipe at manhole Number One is 100.00'. The grade from
the Number Two manhole is .42 percent. The low end invert has a?
A. 2.01 Fall
B. 2.01 Rise
C. 0.42 Fall
D. 0.42 Rise - ANSA. 2.01 Fall
120
2
,A 6 foot sheepsfoot roller is traveling at a speed of 1.25 miles per hour. The
12 inch lifts take 8 passes of the roller for 8 inch compaction. The human
efficiency is 83 percent and the operator correction factor is 75 percent.
The hourly production is?
A. Less than 30 cubic yards
B. Between 30 and 60 cubic yards
C. Between 60 and 90 cubic yards
D. More than 90 cubic yards - ANSC. 6' wide x 1.25 mph x 8" lift x 16.3 =
978
978/8 passes = 122.25 CCY per hour production rate
122.25 x .83 human efficiency x .75 operator correction = 76.1 CCY per hr.
192/193
A 6 foot wide sheepsfoot roller travels at 1.25 miles per hour. The 12 inch
lifts will be compacted to 8 inches. There will be 8 passes of the roller.
Machine efficiency is 83 percent and there is an operator correction factor
of 75 percent. Hourly production should be how many cubic yards?
A. 115
B. 102
C. 51
D. 77 - ANSD. 6 x 1.25 x 8 x 16.3/8 x 83% x 75% Yields 76.1
192/193
3
, A backhoe is best when working within what percent of its maximum
digging depth?
A. 50
B. 60
C. 70
D. 80 - ANSC. 70
150
A backhoe is most efficient when working within a maximum digging depth
of ______?
A. 60 percent
B. 70 percent
C. 6 feet
D. 7 feet - ANSB. 70 percent
150
A backhoe is used for the following excavation:
Four foot deep by 2-foot wide trench
Moist sandy soil swell conditions of 17 percent
Cycle time is 12 seconds
Machine cycle time is 15 seconds
4
Questions with Correct Verified
Answers. Latest 2025-2026. Graded A
____ testing is NOT a type of testing that is usually specified for pipeline
testing.
A. Visual
B. Water
C. Air
D. Hydrostatic - ANSD. Hydrostatic
248/249
A .75 percent rise indicates?
A. A rise of 75 feet in 100 feet
B. A rise of 7.5 feet in 100 feet
C. A rise of .75 feet in 100 feet
D. A rise of 75 inches in 100 feet - ANSC. A rise of 0.75 feet in 100 feet
119
A 0.75 percent rise indicates?
1
,A. A rise of 75 feet in 100 feet
B. A rise of 7.5 feet in 100 feet
C. A rise of 0.75 feet in 100 feet
D. A rise of 0.75 inches in 100 feet - ANSC. A rise of 0.75 feet in 100 feet
120
A 300 cubic yard volume of loose soil with a load factor of 0.769 is to be
moved. The average hourly production rate to be expected is cubic yards.
A. 390.1 bank
B. 390.1 loose
C. 230.7 bank
D. 230.7 loose - ANSC. 300 x .769 = 230.7
66
A 480' long run of 21" PVC is placed between two manholes. The invert
elevation of the pipe at manhole Number One is 100.00'. The grade from
the Number Two manhole is .42 percent. The low end invert has a?
A. 2.01 Fall
B. 2.01 Rise
C. 0.42 Fall
D. 0.42 Rise - ANSA. 2.01 Fall
120
2
,A 6 foot sheepsfoot roller is traveling at a speed of 1.25 miles per hour. The
12 inch lifts take 8 passes of the roller for 8 inch compaction. The human
efficiency is 83 percent and the operator correction factor is 75 percent.
The hourly production is?
A. Less than 30 cubic yards
B. Between 30 and 60 cubic yards
C. Between 60 and 90 cubic yards
D. More than 90 cubic yards - ANSC. 6' wide x 1.25 mph x 8" lift x 16.3 =
978
978/8 passes = 122.25 CCY per hour production rate
122.25 x .83 human efficiency x .75 operator correction = 76.1 CCY per hr.
192/193
A 6 foot wide sheepsfoot roller travels at 1.25 miles per hour. The 12 inch
lifts will be compacted to 8 inches. There will be 8 passes of the roller.
Machine efficiency is 83 percent and there is an operator correction factor
of 75 percent. Hourly production should be how many cubic yards?
A. 115
B. 102
C. 51
D. 77 - ANSD. 6 x 1.25 x 8 x 16.3/8 x 83% x 75% Yields 76.1
192/193
3
, A backhoe is best when working within what percent of its maximum
digging depth?
A. 50
B. 60
C. 70
D. 80 - ANSC. 70
150
A backhoe is most efficient when working within a maximum digging depth
of ______?
A. 60 percent
B. 70 percent
C. 6 feet
D. 7 feet - ANSB. 70 percent
150
A backhoe is used for the following excavation:
Four foot deep by 2-foot wide trench
Moist sandy soil swell conditions of 17 percent
Cycle time is 12 seconds
Machine cycle time is 15 seconds
4
