7-8.
7-9.
7-10.
7-11.
712.
What action can an operator perform
that signals a backhoe is warmed
and ready for operation?
1.
Check the hydraulic oil
temperature
2.
Check the engine oil
temperature
3.
Feel the backhoe hydraulic
hoses for warmth
4.
Feel the backhoe hydraulic
rams for warmth
Learning Objective:
Recognize
the principles and components
of the loader backhoe.
The loader backhoe tractor is
equipped with a bucket of what
size?
1.
1.3 cubic yards
2.
2.0 cubic yards
3.
2.5 cubic yards
4.
3.0 cubic yards
Which of the following components
on the loader backhoe tractor
provides equal power to both rear
wheels?
1.
Limited slip transmission
2.
Positive traction transaxle
3.
Differential lock
4.
Multispeed final drive
Disengaging the differential lock
when the loader is turning or when
one wheel is rotating faster than
the other wheel can cause damage
to the transaxle.
1.
True
2.
False
What is the first step an operator
should perform when preparing to
operate the backhoe attachment?
1.
Rotate the bucket to the dump
position
2.
Remove the swing lockpin
3.
Extend the length of the boom
4.
Lower the stabilizers
7-13.
7-14.
7-15.
7-16.
7-17.
The backhoe bucket can be adjusted
to a total of how many digging
positions?
1.
One
2.
Two
3.
Three
4.
Four
What condition results when an
operator of a backhoe attempts to
excavate a load that is too large?
1.
Positive digging halt
2.
Control lever shutdown
3.
Hydraulic stall
4.
Excavation refusal
Learning Objective:
Recognize
the principles and components
of excavators.
Which of the following excavator
mountings are used in the Naval
Construction Force (NCF)?
1.
Track
2.
Truck carrier
3.
Self-propelled wheel
4.
All of the above
Which of the following is NOT
a structural component of an
excavator?
1.
Revolving unit
2.
Travel base
3.
Winch assembly
4.
Attachment
Which of the following structural
components carries the engine,
pumps, attachments, controls, and
the operators cab?
1.
The revolving unit
2.
The travel base
3.
The winch assembly
4.
The primary attachment
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