CM 2113 WANG TEST EXAM ACTUAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS |ALREADY GRADED A+
Three basic components of soil - ANSWER-solids, water and air
(T/F) For bulk materials, volumetric mesure varies with material's position in the
construction process - ANSWER-T
(T/F) The same weight of a material will occupy different volumes as the material
is handled on the project - ANSWER-T
Swell - ANSWER-Reduction in density due to loosening the soil by digging
Which soil volume is used to determine the volume capacity of excavating/hauling
equipment? - ANSWER-Loose Volume
Soil density is a measure of ? per unit of volume. - ANSWER-Weight
What is soil's bank condition? - ANSWER-Typical amount of soil in its natural
state
(T/F) 1 bank cubic yard is 1 cubic yard of material after it has been disturbed by a
loading process - ANSWER-F
What are construction costs based on? - ANSWER-(total quantity of the work to be
done)*(the unit price of the work)
1
, Rolling Resistance - ANSWER-resistance of a level surface to constant-velocity
motion across it
What does rolling resistance result from? - ANSWER-friction of the driving
mechanism, tire flexing and the force needed to push through or ride over the
supporting surface
(T/F) rolling resistance applied to both crawler-type and wheel-type mobile
equipment - ANSWER-T
(T/F) When a vehicle moves down a grade the force of gravity that assists the
vehicle is also called grade assistance - ANSWER-T
(T/F)power required, total resistance and effective grade all denote the same thing -
ANSWER-T
(T/F) The decision process for matching the best possible machine to the project
task requires the engineer to take into account both the properties of the material to
be handled and the mechanical capabilities of the machine - ANSWER-T
(T/F) The power to move a crawler type of tractor and load is called Rimpull -
ANSWER-F
Rimpull - ANSWER-the tractive force between the tires of a machine's driving
wheels and the surface on which they travel
Drawbar Pull - ANSWER-towing force a crawler tractor can exert on a load
2
CORRECT DETAILED ANSWERS |ALREADY GRADED A+
Three basic components of soil - ANSWER-solids, water and air
(T/F) For bulk materials, volumetric mesure varies with material's position in the
construction process - ANSWER-T
(T/F) The same weight of a material will occupy different volumes as the material
is handled on the project - ANSWER-T
Swell - ANSWER-Reduction in density due to loosening the soil by digging
Which soil volume is used to determine the volume capacity of excavating/hauling
equipment? - ANSWER-Loose Volume
Soil density is a measure of ? per unit of volume. - ANSWER-Weight
What is soil's bank condition? - ANSWER-Typical amount of soil in its natural
state
(T/F) 1 bank cubic yard is 1 cubic yard of material after it has been disturbed by a
loading process - ANSWER-F
What are construction costs based on? - ANSWER-(total quantity of the work to be
done)*(the unit price of the work)
1
, Rolling Resistance - ANSWER-resistance of a level surface to constant-velocity
motion across it
What does rolling resistance result from? - ANSWER-friction of the driving
mechanism, tire flexing and the force needed to push through or ride over the
supporting surface
(T/F) rolling resistance applied to both crawler-type and wheel-type mobile
equipment - ANSWER-T
(T/F) When a vehicle moves down a grade the force of gravity that assists the
vehicle is also called grade assistance - ANSWER-T
(T/F)power required, total resistance and effective grade all denote the same thing -
ANSWER-T
(T/F) The decision process for matching the best possible machine to the project
task requires the engineer to take into account both the properties of the material to
be handled and the mechanical capabilities of the machine - ANSWER-T
(T/F) The power to move a crawler type of tractor and load is called Rimpull -
ANSWER-F
Rimpull - ANSWER-the tractive force between the tires of a machine's driving
wheels and the surface on which they travel
Drawbar Pull - ANSWER-towing force a crawler tractor can exert on a load
2
