RI OPERATOR EXAM QUESTIONS WITH COMPLETE
SOLUTIONS
A 1:1 slope is commonly used in temporary excavations as per
OSHA regulations. Correct Answers True
A 1% slope is commonly used for drainage on paved surfaces
such as parking lots. Correct Answers True
A 100% slope = ________ degrees Correct Answers 45
A 2% slope is commonly required for sheet flow drainage such
as grading around houses to ensure positive drainage. Correct
Answers True
A 3/4:1 slope is commonly used in stable soils for sloping
temporary excavations, when specified by the engineers.
Correct Answers True
A 32% slope will rise how many feet vertical in 100ft
horizontal? Correct Answers 32 Feet
A 50% slope is equal to 1:1 slope. Correct Answers False - A
50% slope is equal to a 2:1 slope
A bucket level check is used to: Correct Answers Check the
accuracy of the bucket level indicators
Determine the level position of the bucket
,A bumpy and uneven job site can compromise operator safety.
This can affect the operator before the end of the day by:
Correct Answers Causing operator fatigue.
A cutting pass that is too deep or not deep enough can be
corrected on the next several passes. Correct Answers True
A dirty secondary filter should be cleaned out by blowing it out
with compressed air. Correct Answers False - A dirty
secondary filter should be replaced, and never be re-used.
A highly experienced operator uses which of the following
techniques to detect an unmarked pipe through bucket contact
and avoid breaking it: Correct Answers Bucket movement.
Control.
Total concentration.
A machine with a hydraulic breaker attached to the backhoe will
have _________ weight on the front tires? Correct Answers
Less
A machine with improperly functioning or misadjusted brakes
should be removed from service and repaired. Correct Answers
True
A precision set-up is aligned and confirmed by: Correct
Answers Extending out the backhoe and touching the bucket to
the layout line.
Placing the bucket on the layout line close to the machine.
,A simple slope that rises 1 ft vertical for every 10 ft horizontal is
expressed as: Correct Answers 10%
A smooth well graded work area is the key to safety and
productivity when using the loader. Correct Answers True
A smooth work area can help prevent: Correct Answers Loss
of control when traveling around the job site.
Loose material from spilling from the bucket.
Operator fatigue.
A Stage 1 situation is where there should be no utilities in the
area, such as farmland and some construction sites. Correct
Answers True
A Stage 2 situation is where information about utilities is limited
or incomplete, but there are some utilities believed to be present.
Correct Answers True
A Stage 3 exists when it is possible that utilities exist that have
not been located and marked by One Call representatives.
Correct Answers True
A trench is to be dug in an existing parking lot. The concrete has
been saw cut to allow the trench to be dug. The spoil from the
trench will be reused for backfill, and the concrete will be
loaded onto a truck and removed from the site. The fastest and
easiest way to accomplish this work is to pile the concrete and
dirt together on one side of the trench. Correct Answers False-
The fastest and easiest way to accomplish this work is to
separate the materials as they are removed.
, About one third of all rollover accidents occur when: Correct
Answers The machine was moved too close to the edge of the
road or downslope.
According to OSHA, trenches deeper than six feet must be
shored or sloped. Correct Answers False - According to
OSHA, trenches deeper than five feet must be shored or sloped
(This can vary, as some states have their own restrictions).
After each move, the set up should be checked for: Correct
Answers Safety.
Stability.
Alignment with the trench.
After filling the loader bucket, a quick shake of the bucket will
remove excess material to prevent loose spoil from falling out of
the bucket during shuttle operations. Correct Answers True
After the machine is set up properly, the operator must be
constantly aware of the machine's alignment with the trench.
Correct Answers True
All TLBs respond the same way to operator input. Correct
Answers False - TLBs respond in their own way to operator
input.
Always watch out for workers or other people on the job site.
Correct Answers True
SOLUTIONS
A 1:1 slope is commonly used in temporary excavations as per
OSHA regulations. Correct Answers True
A 1% slope is commonly used for drainage on paved surfaces
such as parking lots. Correct Answers True
A 100% slope = ________ degrees Correct Answers 45
A 2% slope is commonly required for sheet flow drainage such
as grading around houses to ensure positive drainage. Correct
Answers True
A 3/4:1 slope is commonly used in stable soils for sloping
temporary excavations, when specified by the engineers.
Correct Answers True
A 32% slope will rise how many feet vertical in 100ft
horizontal? Correct Answers 32 Feet
A 50% slope is equal to 1:1 slope. Correct Answers False - A
50% slope is equal to a 2:1 slope
A bucket level check is used to: Correct Answers Check the
accuracy of the bucket level indicators
Determine the level position of the bucket
,A bumpy and uneven job site can compromise operator safety.
This can affect the operator before the end of the day by:
Correct Answers Causing operator fatigue.
A cutting pass that is too deep or not deep enough can be
corrected on the next several passes. Correct Answers True
A dirty secondary filter should be cleaned out by blowing it out
with compressed air. Correct Answers False - A dirty
secondary filter should be replaced, and never be re-used.
A highly experienced operator uses which of the following
techniques to detect an unmarked pipe through bucket contact
and avoid breaking it: Correct Answers Bucket movement.
Control.
Total concentration.
A machine with a hydraulic breaker attached to the backhoe will
have _________ weight on the front tires? Correct Answers
Less
A machine with improperly functioning or misadjusted brakes
should be removed from service and repaired. Correct Answers
True
A precision set-up is aligned and confirmed by: Correct
Answers Extending out the backhoe and touching the bucket to
the layout line.
Placing the bucket on the layout line close to the machine.
,A simple slope that rises 1 ft vertical for every 10 ft horizontal is
expressed as: Correct Answers 10%
A smooth well graded work area is the key to safety and
productivity when using the loader. Correct Answers True
A smooth work area can help prevent: Correct Answers Loss
of control when traveling around the job site.
Loose material from spilling from the bucket.
Operator fatigue.
A Stage 1 situation is where there should be no utilities in the
area, such as farmland and some construction sites. Correct
Answers True
A Stage 2 situation is where information about utilities is limited
or incomplete, but there are some utilities believed to be present.
Correct Answers True
A Stage 3 exists when it is possible that utilities exist that have
not been located and marked by One Call representatives.
Correct Answers True
A trench is to be dug in an existing parking lot. The concrete has
been saw cut to allow the trench to be dug. The spoil from the
trench will be reused for backfill, and the concrete will be
loaded onto a truck and removed from the site. The fastest and
easiest way to accomplish this work is to pile the concrete and
dirt together on one side of the trench. Correct Answers False-
The fastest and easiest way to accomplish this work is to
separate the materials as they are removed.
, About one third of all rollover accidents occur when: Correct
Answers The machine was moved too close to the edge of the
road or downslope.
According to OSHA, trenches deeper than six feet must be
shored or sloped. Correct Answers False - According to
OSHA, trenches deeper than five feet must be shored or sloped
(This can vary, as some states have their own restrictions).
After each move, the set up should be checked for: Correct
Answers Safety.
Stability.
Alignment with the trench.
After filling the loader bucket, a quick shake of the bucket will
remove excess material to prevent loose spoil from falling out of
the bucket during shuttle operations. Correct Answers True
After the machine is set up properly, the operator must be
constantly aware of the machine's alignment with the trench.
Correct Answers True
All TLBs respond the same way to operator input. Correct
Answers False - TLBs respond in their own way to operator
input.
Always watch out for workers or other people on the job site.
Correct Answers True
