Equip Management EXAM 02
Comprehensive Questions
(Frequently Tested) with
Verified Answers Graded A+
What are the two common types of concrete batch plants? - Answer: dry batch plant and
central batch plant
What is the difference between dry batch plants and central batch plants? - Answer: dry batch
mixes concrete in the truck and central batch uses a central mixer.
What are the different equipment within a batch plant? - Answer: cement silo, fly ash silo,
aggregate bins, batch house, water tank, admixture tanks
What is the place that monitors and controls the operation of a concrete batch plant? - Answer:
batch house
Concrete can be commonly transported from the batch plant to the jobsite using ______? -
Answer: Ready-mix truck
Match the letter with the name of the component within a ready-mix truck - Answer: A-Hooper
B-Revolving Drum C- Water Tank D-Chute
, If a ready-mix truck is needed to arrive on the jobsite at 9:00 am, what is the minimum time the
ready-mix truck should start loading if the job is a 25 minutes drive and it takes 10 minutes to
load the ready-mix truck? - Answer: 8:25 am
A concrete truck takes 5 minutes to be batched. It takes 30 minutes to the jobsite and 30
minutes to drive back to the plant. The truck takes 25 minutes to get poured out. It takes 20
minutes to wash out the truck. Find the cycle time (mins) of this truck for this specific jobsite. -
Answer: 110
A concrete central batch plant can produce 12 cubic yards of concrete every 2.5 minutes.
Assume an efficiency of 80%. What is the probable production rate (cyd per hour)? - Answer: 40
A jobsite calls for 300 yards of concrete. The concrete crew can place 12 cubic yards of concrete
every 6 minutes. What is the probable concrete truck spacing (mins) for a 12-yard truck with a
0.70 efficiency? - Answer: 16.8
A jobsite calls for 600 yards of concrete. The concrete pump with a maximum output of 180
cyds per hour. Assume an efficiency of 80%. How long (hours) will it take to pump all the
concrete? - Answer: 4.17
A jobsite calls for 600 yards of concrete. The concrete pump with a maximum output of 180
cyds per hour. Assume an efficiency of 80%. What is the number of trucks required per hour
based on a 12 cubic yard truck? - Answer: 12
A concrete slip formed paver is used to pave a city street. The thickness is 8 inches, a width of
14 feet, and a speed of 1.5 ft. Assume an efficiency of 0.80. What is the placement rate (cyd per
hour) of the paver? - Answer: 24.89
What is the oldest Asphalt road? - Answer: Babylonian empire
Comprehensive Questions
(Frequently Tested) with
Verified Answers Graded A+
What are the two common types of concrete batch plants? - Answer: dry batch plant and
central batch plant
What is the difference between dry batch plants and central batch plants? - Answer: dry batch
mixes concrete in the truck and central batch uses a central mixer.
What are the different equipment within a batch plant? - Answer: cement silo, fly ash silo,
aggregate bins, batch house, water tank, admixture tanks
What is the place that monitors and controls the operation of a concrete batch plant? - Answer:
batch house
Concrete can be commonly transported from the batch plant to the jobsite using ______? -
Answer: Ready-mix truck
Match the letter with the name of the component within a ready-mix truck - Answer: A-Hooper
B-Revolving Drum C- Water Tank D-Chute
, If a ready-mix truck is needed to arrive on the jobsite at 9:00 am, what is the minimum time the
ready-mix truck should start loading if the job is a 25 minutes drive and it takes 10 minutes to
load the ready-mix truck? - Answer: 8:25 am
A concrete truck takes 5 minutes to be batched. It takes 30 minutes to the jobsite and 30
minutes to drive back to the plant. The truck takes 25 minutes to get poured out. It takes 20
minutes to wash out the truck. Find the cycle time (mins) of this truck for this specific jobsite. -
Answer: 110
A concrete central batch plant can produce 12 cubic yards of concrete every 2.5 minutes.
Assume an efficiency of 80%. What is the probable production rate (cyd per hour)? - Answer: 40
A jobsite calls for 300 yards of concrete. The concrete crew can place 12 cubic yards of concrete
every 6 minutes. What is the probable concrete truck spacing (mins) for a 12-yard truck with a
0.70 efficiency? - Answer: 16.8
A jobsite calls for 600 yards of concrete. The concrete pump with a maximum output of 180
cyds per hour. Assume an efficiency of 80%. How long (hours) will it take to pump all the
concrete? - Answer: 4.17
A jobsite calls for 600 yards of concrete. The concrete pump with a maximum output of 180
cyds per hour. Assume an efficiency of 80%. What is the number of trucks required per hour
based on a 12 cubic yard truck? - Answer: 12
A concrete slip formed paver is used to pave a city street. The thickness is 8 inches, a width of
14 feet, and a speed of 1.5 ft. Assume an efficiency of 0.80. What is the placement rate (cyd per
hour) of the paver? - Answer: 24.89
What is the oldest Asphalt road? - Answer: Babylonian empire
