CM 2113 LATEST COMPREHENSIVE EXAMS
QUESTIONS AND ANSWERS SURE A+
✔✔A contractor has a project involving the construction of a small manufacturing plant.
The contractor has selected a borrow site and has decided to use 27-cubic yard dump
trucks to haul the needed fill material. The contractor has decided to use a hydraulic
excavator with a shovel attachment to load the trucks. The excavator has expected
productivity as 422cy/hr at 100% efficiency, and the truck cycle time excluding loading is
0.48hr. The job site operation efficiency is assumed as 0.8. Please answer the next two
questions.
What is the expected fleet production if 11 trucks are available to the fleet? - ✔✔422
✔✔A contractor has a project involving the construction of a small manufacturing plant.
The contractor has selected a borrow site and has decided to use 27-cubic yard dump
trucks to haul the needed fill material. The contractor has decided to use a hydraulic
excavator with a shovel attachment to load the trucks. The excavator has expected
productivity as 422cy/hr at 100% efficiency, and the truck cycle time excluding loading is
0.48hr. The job site operation efficiency is assumed as 0.8. Please answer the next two
questions.
What is the expected fleet production if only 6 trucks are available to the fleet? - ✔✔238
✔✔A contractor has decided to use a dragline to excavate a ditch to drain stormwater
runoff from her construction site. The material to be excavated is a light moist clay
, weighing 2,000 pounds per bank cubic yard with a swell of 18% and shrinkage of 25%.
Given the density of the material to be loaded, the contractor has determined that the
largest heavy-duty dragline bucket that can be safely mounted on the crane has a rated
capacity of 2.5 cubic yards. We assume that we know the average depth of the dig is
11.9 feet and the average angle of the swing is 75 degrees, and the contractor plans to
operate the machine about 48 minutes per hour. Please answer this question based on
the following given tables. - ✔✔305
✔✔A contractor has decided to use a dragline to excavate a ditch to drain stormwater
runoff from her construction site. The material to be excavated is a light moist clay
weighing 2,000 pounds per bank cubic yard with a swell of 18% and shrinkage of 25%.
Given the density of the material to be loaded, the contractor has determined that the
largest heavy-duty dragline bucket that can be safely mounted on the crane has a rated
capacity of 2.5 cubic yards. We assume that we know the average depth of the dig is
11.9 feet and the average angle of the swing is 75 degrees, and the contractor plans to
operate the machine about 48 minutes per hour. What is the optimum depth of cut for
this machine based on the given scenario? - ✔✔8.5
✔✔A contractor has decided to use a dragline to excavate a ditch to drain stormwater
runoff from her construction site. The material to be excavated is a light moist clay
weighing 2,000 pounds per bank cubic yard with a swell of 18% and shrinkage of 25%.
Given the density of the material to be loaded, the contractor has determined that the
largest heavy-duty dragline bucket that can be safely mounted on the crane has a rated
capacity of 2.5 cubic yards. We assume that we know the average depth of the dig is
11.9 feet and the average angle of the swing is 75 degrees, and the contractor plans to
operate the machine about 48 minutes per hour. Please answer this question based on
the following given tables.What is the swing-depth factor for this machine based on the
given scenario? - ✔✔1.00
✔✔What is the job efficiency for this machine based on the given scenario? - ✔✔0.8
✔✔What is the actual production rate for this machine based on the given scenario? -
✔✔244
✔✔Using Fig. 17.13, select the minimum-length boom required to hoist a load of 80,000
lb from a truck at ground level and place it on a platform 76 ft above the ground. The
minimum allowable vertical distance from the bottom of the load to the boom point of the
crane is 42 ft. The maximum horizontal distance from the center of rotation of the crane
to the hoist line of the crane when lifting the load is 40 ft. - ✔✔120
✔✔A 25-ton truck-mounted hydraulic crane is being used on a construction site. The
maximum horizontal distance from the center of rotation of the crane to the hoist line of
the crane when lifting a load of 9,000 lb will be 40 ft. Use Table 17.2 crane data to
select the minimum length boom required to safely hoist the load. - ✔✔64
QUESTIONS AND ANSWERS SURE A+
✔✔A contractor has a project involving the construction of a small manufacturing plant.
The contractor has selected a borrow site and has decided to use 27-cubic yard dump
trucks to haul the needed fill material. The contractor has decided to use a hydraulic
excavator with a shovel attachment to load the trucks. The excavator has expected
productivity as 422cy/hr at 100% efficiency, and the truck cycle time excluding loading is
0.48hr. The job site operation efficiency is assumed as 0.8. Please answer the next two
questions.
What is the expected fleet production if 11 trucks are available to the fleet? - ✔✔422
✔✔A contractor has a project involving the construction of a small manufacturing plant.
The contractor has selected a borrow site and has decided to use 27-cubic yard dump
trucks to haul the needed fill material. The contractor has decided to use a hydraulic
excavator with a shovel attachment to load the trucks. The excavator has expected
productivity as 422cy/hr at 100% efficiency, and the truck cycle time excluding loading is
0.48hr. The job site operation efficiency is assumed as 0.8. Please answer the next two
questions.
What is the expected fleet production if only 6 trucks are available to the fleet? - ✔✔238
✔✔A contractor has decided to use a dragline to excavate a ditch to drain stormwater
runoff from her construction site. The material to be excavated is a light moist clay
, weighing 2,000 pounds per bank cubic yard with a swell of 18% and shrinkage of 25%.
Given the density of the material to be loaded, the contractor has determined that the
largest heavy-duty dragline bucket that can be safely mounted on the crane has a rated
capacity of 2.5 cubic yards. We assume that we know the average depth of the dig is
11.9 feet and the average angle of the swing is 75 degrees, and the contractor plans to
operate the machine about 48 minutes per hour. Please answer this question based on
the following given tables. - ✔✔305
✔✔A contractor has decided to use a dragline to excavate a ditch to drain stormwater
runoff from her construction site. The material to be excavated is a light moist clay
weighing 2,000 pounds per bank cubic yard with a swell of 18% and shrinkage of 25%.
Given the density of the material to be loaded, the contractor has determined that the
largest heavy-duty dragline bucket that can be safely mounted on the crane has a rated
capacity of 2.5 cubic yards. We assume that we know the average depth of the dig is
11.9 feet and the average angle of the swing is 75 degrees, and the contractor plans to
operate the machine about 48 minutes per hour. What is the optimum depth of cut for
this machine based on the given scenario? - ✔✔8.5
✔✔A contractor has decided to use a dragline to excavate a ditch to drain stormwater
runoff from her construction site. The material to be excavated is a light moist clay
weighing 2,000 pounds per bank cubic yard with a swell of 18% and shrinkage of 25%.
Given the density of the material to be loaded, the contractor has determined that the
largest heavy-duty dragline bucket that can be safely mounted on the crane has a rated
capacity of 2.5 cubic yards. We assume that we know the average depth of the dig is
11.9 feet and the average angle of the swing is 75 degrees, and the contractor plans to
operate the machine about 48 minutes per hour. Please answer this question based on
the following given tables.What is the swing-depth factor for this machine based on the
given scenario? - ✔✔1.00
✔✔What is the job efficiency for this machine based on the given scenario? - ✔✔0.8
✔✔What is the actual production rate for this machine based on the given scenario? -
✔✔244
✔✔Using Fig. 17.13, select the minimum-length boom required to hoist a load of 80,000
lb from a truck at ground level and place it on a platform 76 ft above the ground. The
minimum allowable vertical distance from the bottom of the load to the boom point of the
crane is 42 ft. The maximum horizontal distance from the center of rotation of the crane
to the hoist line of the crane when lifting the load is 40 ft. - ✔✔120
✔✔A 25-ton truck-mounted hydraulic crane is being used on a construction site. The
maximum horizontal distance from the center of rotation of the crane to the hoist line of
the crane when lifting a load of 9,000 lb will be 40 ft. Use Table 17.2 crane data to
select the minimum length boom required to safely hoist the load. - ✔✔64
