Assignment 7
Textbook Assignment: “Oxygen System”; and “Oxygen Support Equipment.”
Pages 4-19 through 5-16.
Learning Objective:
Identify safety
precautions, components,
installation and testing
of components, and
operating procedures for
liquid oxygen (LOX)
systems. (This objective
is continued from
assignment 6.)
7-1.
What component in the MD type
regulator protects it from
overpressure?
1.
Second stage relief valve
2.
First stage relief valve
3.
Venturi assembly
4.
Aneroid check valve
7-2.
Ambient air for mixing with
oxygen passes through what
component in an MD type
regulator?
1.
Demand valve assembly
2.
Demand diaphragm chamber
3.
Venturi assembly
4.
Diluter aneroid assembly
7-3.
What component in the MD type
regulator prevents oxygen from
flowing out through the inlet
ports?
1.
Demand valve assembly
2.
Diluter aneroid assembly
3.
Venturi assembly
4.
Aneroid check valve
7-4.
Pressure breathing above 30,000
feet is a feature of MD type
pressure regulators. Which of
the following is one of the
components in the regulator that
provides this feature?
1.
Aneroid assembly
2.
Demand valve assembly
3.
Diluter aneroid assembly
4.
Aneroid check valve assembly
7-5.
Fire and/or explosion may result
when even slight traces of
combustible material come in
contact with oxygen under
pressure.
1.
True
2.
False
7-6.
In making a functional check of
the MD type regulator, a properly
operating regulating will be
indicated on the flow indicator
in which of the following ways?
1.
The indicator will show
movement from the zero
position-when inhaling
2.
The indicator will show
movement from the zero
positiom when exhaling
3.
The indicator will show white
when inhaling and black
exhaling
4.
The indicator will show white
when exhaling and black
inhaling
7-7.
When making a functional check of
an oxygen system that uses the MD
type regulator, what position
must the emergency lever be in to
check for oxygen supply through
the regulator at ground level?
1.
Emergency
2.
100-percent oxygen
3.
Normal
4. ON
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