RI Hoisting License Test Questions
and All Correct Answers.
Because the location, high above the ground and far behind the wheelbase, the weight the
backhoe attachment transfers the machine center of gravity upward as well as to the rear when
compared to other machines - Answer True
features such as 4-wheel drive and large front tries trend to destabilize the TLB - Answer
True
A machine with a hydraulic breaker attached to the backhoe will have___ weight on the front
tries - Answer Less
Operating a TLB is a construction trade that is unique in the industry because - Answer of the
high weight involved
The universal forces and principle are - Answer constant and variable
When weight and motion are combined the result is - Answer Momentum
When momentum and downhill forces combine they can become stronger then the forces that
are keeping the machine under control - Answer true
Downhill force is the result of the combination of weight and momentum - Answer true
When on a downhill a bicycle rider will be propelled by the center of gravity - Answer true
When operating a TLB a loss of traction would result in - Answer Reduced productivity, loss
of control, loss of safety
Friction usually occurs between the bucket (or cutting edge) and the ground - Answer True
Raising the loader bucket or extending the backhoe will move the center of gravity toward the
rear of the machine - Answer false
the power or strength of downhill force is determined by the weight of the object and the slope
it is resting on - Answer true
, A 1:1 slope is commonly used in temporary excavation as per OSHA regulation - Answer True
ON flat level ground downhill force is an important consideration for the operator to consider
when planning the job - Answer False
A 1% slope is commonly used for drainage on paved surfaces such as parking lots - Answer
true
A 50% slope is equal to 1:1 slope - Answer False
A 2% slope is commonly required for sheet flow drainage such as grading around houses to
ensure positive drainage - Answer true
The center of gravity of an object is determined by - Answer The weight, the shape and how
the weight is distributed
When using a loader the base of the machine is the entire area inside of where the tires contact
the ground - Answer true
The vertical line indicates the force of gravity and where the COG is in relation to the base -
Answer true
Smooth operation of the TLB will - Answer Improve safety, increase efficiency and lengthen
machine life
Smooth operation can be mastered by technique called feathering - Answer true
the "floating the bucket" exercise involves falling the contour of the ground with the bucket 1
foot off the surface of the ground - Answer False 1IN
All TLBs respond the same way to operator input - Answer False
The mechanical response of TLBs can vary greatly due to - Answer Different manufactures,
age of the machine and weight distribution of the machine
An older machine should be operated in more gentle way to avoid overstressing its individual
parts - Answer true
and All Correct Answers.
Because the location, high above the ground and far behind the wheelbase, the weight the
backhoe attachment transfers the machine center of gravity upward as well as to the rear when
compared to other machines - Answer True
features such as 4-wheel drive and large front tries trend to destabilize the TLB - Answer
True
A machine with a hydraulic breaker attached to the backhoe will have___ weight on the front
tries - Answer Less
Operating a TLB is a construction trade that is unique in the industry because - Answer of the
high weight involved
The universal forces and principle are - Answer constant and variable
When weight and motion are combined the result is - Answer Momentum
When momentum and downhill forces combine they can become stronger then the forces that
are keeping the machine under control - Answer true
Downhill force is the result of the combination of weight and momentum - Answer true
When on a downhill a bicycle rider will be propelled by the center of gravity - Answer true
When operating a TLB a loss of traction would result in - Answer Reduced productivity, loss
of control, loss of safety
Friction usually occurs between the bucket (or cutting edge) and the ground - Answer True
Raising the loader bucket or extending the backhoe will move the center of gravity toward the
rear of the machine - Answer false
the power or strength of downhill force is determined by the weight of the object and the slope
it is resting on - Answer true
, A 1:1 slope is commonly used in temporary excavation as per OSHA regulation - Answer True
ON flat level ground downhill force is an important consideration for the operator to consider
when planning the job - Answer False
A 1% slope is commonly used for drainage on paved surfaces such as parking lots - Answer
true
A 50% slope is equal to 1:1 slope - Answer False
A 2% slope is commonly required for sheet flow drainage such as grading around houses to
ensure positive drainage - Answer true
The center of gravity of an object is determined by - Answer The weight, the shape and how
the weight is distributed
When using a loader the base of the machine is the entire area inside of where the tires contact
the ground - Answer true
The vertical line indicates the force of gravity and where the COG is in relation to the base -
Answer true
Smooth operation of the TLB will - Answer Improve safety, increase efficiency and lengthen
machine life
Smooth operation can be mastered by technique called feathering - Answer true
the "floating the bucket" exercise involves falling the contour of the ground with the bucket 1
foot off the surface of the ground - Answer False 1IN
All TLBs respond the same way to operator input - Answer False
The mechanical response of TLBs can vary greatly due to - Answer Different manufactures,
age of the machine and weight distribution of the machine
An older machine should be operated in more gentle way to avoid overstressing its individual
parts - Answer true
