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CDC 3E251 - VOLUME 2 EXAM WITH QUESTIONS AND ANSWERS
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CDC 3E251 - VOLUME 2 EXAM WITH QUESTIONS AND ANSWERS ...
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CDC 3E251 - VOLUME 2 EXAM WITH QUESTIONS ANDANSWERS
If you choose to spread materials in layers, you should stop the truck where you
want to start the spread, position the dump control levers, and - ANSWER Raise
the bed enough to break the material free
When properly equipped, a front-end loader can perform tasks associated with each
operation task EXCEPT - ANSWER Trailer operations
What defect are you looking for when inspecting loader buckets without teeth? -
ANSWER Wear of the cutting edges and end bits
What function can the front-end loader NOT perform when equipped with a
multipurpose bucket? - ANSWER Dragline
What front-end loader bucket control is used to raise and lower the bucket? -
ANSWER Lift control lever
Which front-end loader control regulates the transmission speed? - ANSWER
Range control lever
How should you backfill a trench when using a front-end loader with a narrow
bucket? - ANSWER Backfill the area from an angle
What must you do before performing any maintenance action on a front-end
loader? - ANSWER Turn the loader off and set the parking brake
What advantage does a compact track loader (CTL) have over a standard front-end
loader? - ANSWER Can operate in a smaller area
How do you spin a compact track loader (CTL) around within its own body length?
- ANSWER Move the travel controls in opposite directions
If you release the skid-steer loader travel controls levers, - ANSWER Equipment
will stop moving
, You ensure good sweeping action and avoid bystanders or damaging equipment
when using the skid-steer loader with the sweeper attachment by using a broom
pattern - ANSWER Two to three inches wide
How are MOST attachments controlled once the auxiliary hydraulics are activated
in the compact track loader (CTL)? - ANSWER Toggle switches on the travel
controls
What distance in feet is the efficient operating range of a scraper? - ANSWER 300
What four phases of operation make up the work cycle in any scraper operation? -
ANSWER Loading, hauling, spreading, and returning
Generally, push-loaded scrapers should be loaded within a MAXIMUM distance of
how many feet? - ANSWER 100
When operating a scraper, at what speed should you enter the loading area? -
ANSWER Controlled high-return speed
When spreading material with scrapers, why should you route the scrapers so their
tracks overlap? - ANSWER To promote compaction
When spreading materials with a scraper, you should make the fill high on the
outside edges to - ANSWER Prevent the scraper from sliding over the edge
When using a scraper, you can save valuable time on short-radius turns by using -
ANSWER A figure-eight cycle
If the haul road on which you are operating a scraper is rough and no grader is
available, you should - ANSWER Lower the scraper bowl on the return trip to level
the road
Why do you allow the crawler-type dozer engine to idle three to five minutes
before shutdown? - ANSWER Prevent damage to the turbocharger
The attachment of a rear-mounted ripper to a dozer does NOT seriously affect the -
ANSWER Maneuverability of the dozer
What do you do if you are ripping material and your dozer continually lags or
stalls? - ANSWER Reduce the number of teeth
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