10–57.
Compressors of different types
should NOT be used on the same
manifold because of what factor?
1.
The difference in distance
between two or more
compressors could cause the
overloading or underloading
of either compressor
2.
The difference in pressure
control systems on different
types of compressors could
cause one compressor to be
overloaded, while the other
is idled
3.
The manifold could explode
due to uneven air pressure
from two compressors
4.
The uneven flow of air
pressure would starve the
tools of the correct amount
of required air
10-58.
Pneumatic tools can be used with
any type or size of compressor as
long as what two requirements of
the tool are met?
1.
Psi and lubrication
2.
Cfm and lubrication
3.
Air regulation and lubrication
4.
Psi and cfm
10-59.
What is the major difference
between a pavement breaker/
jackhammer and a rotary rock
drill/jackhammer?
1.
The pavement breaker has
a rotational mechanism and
a variation of speeds are
available, while the rotary
rock drill has only one speed
2.
The rotary rock drill has a
rotational mechanism and a
variation in speed, while the
pavement breaker has only one
speed
3.
The cutting bits of the
pavement breaker will fit the
rotary rock drill, while the
cutting bits of the rock drill
will not fit the pavement
breaker
4.
The drill design of the
pavement breaker, unlike that
of the rotary rock drill,
directs air through the drill,
down the drill steel, and into
the bottom of the hole to blow
out the cuttings
10-60.
Which of the following pavement
breaker attachments is best suited
for trimming corners and splitting
seamed rock?
1.
Moil point
2.
Chisel point
3.
Asphalt cutter
4.
Clay spade
10-61.
The rotary rock drill is a piston
rotary unit designed mainly for
what purpose?
1.
Hard rock drilling
2.
Shallow depth rock drill
3.
Medium depth rock drill
4.
Deep boring rock drill
10-62.
The fourth class rotary rock drill
weighs from 50 to 65 pounds and is
used for drill holes up to a
maximum of how many feet?
1.
18
2.
12
3.
10
4.
6
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