10-11.
When you perform the safety
pressure test on the CRU-79/P
regulator, the safety pressure
reading will be indicated by
which of the following
measurements?
1.
Liter per minute
2.
Inches in water
3.
Pounds per square inch
4.
Inches of mercury
10-12.
which of the following situa-
tions would be the probable
cause for a CRU-79/P regulator
to start pressure breathing
below 35,000 feet?
1.
A defective or damaged
aneroid assembly
2.
The aneroid assembly is too
far into the regulator
housing
3.
The aneroid assembly iS too
far out of the regulator
housing
4.
The aneroid sensing
diaphragm is installed
backwards
10-13.
The outlet port of the miniature
regulator should never be
blocked while pressure is
applied to the inlet.
1.
True
2.
False
Learning Objective:
Identify,
maintaing and perform mainte-
nance on aircraft panel-mounted
oxygen regulators.
10-14.
The panel-mounted regulators
incorporate an emergency
pressure control lever.
Which
of the following is NOT a
setting for this lever?
1.
Emergency
2.
100-percent
3.
Test mask
4.
Normal
10-15.
The low-pressure, panel-mounted
regulators have an operating
pressure range of how many psig?
1.
50 to
200
2.
50 to
400
3.
50 to
500
4.
50 to 2,000
10-16.
A panel-mounted regulator is
considered beyond economical
repair when the repair cost is
more than what percentage of the
replacement cost of the
regulator?
1.
40%
2.
50%
3.
60%
4.
75%
10-17.
A discrepancy
CRU-72/A regul
found on a
ator during a
transfer inspection should be
reported to which of the
following work centers?
1.
Material control
2.
Maintenance control
3.
Quality assurance
4.
Line division
10-18.
Which of the following mainte-
nance activities has the repair
capabilities for the panel-
mounted regulator?
1.
Organizational only
2.
Intermediate only
3.
Depot only
4.
Intermediate and depot
10-19.
An acceptance inspection on a
CRU-55/A regulator consists of a
visual inspection followed by
which of the following tests?
1.
Outward leak test
2.
Inward leak test
3.
Functional test
4.
Safety pressure test
10-20.
To receive oxygen at sea level
with an MD-2 regulator, the
emergency pressure control lever
must be placed in what position?
1.
Normal
2.
Test mask
3.
Emergency
10-21.
When you perform a function test
on an MD-2 regulator, which of
the following indicators would
show that the regulator is
operating properly?
1.
The low-pressure gauge
2.
The high-pressure gauge
3.
The emergency control lever
4.
The flow indicator
55
