7-31.
7-32.
7-33.
7-34.
7-35.
7–36.
What is the major difference
between the standard and the
closed loop LOX trailers?
1.
The closed loop trailer
operates on a higher pressure
2.
The closed loop trailer
recaptures vented LOX losses
3.
The standard trailer operates
faster
4.
The standard trailer is more
economical
Which of the following safety
hazards is eliminated by use of
the closed loop LOX cart?
1.
Venting oxygen
2.
Trapped liquid in the lines
3.
Static discharge
4.
Overpressurization
The transfer tank of the closed
loop LOX trailer has what
capacity?
1.
15 liters
2.
25 liters
3.
50 liters
4.
65 liters
To what minimum number of microns
is the 30-gallon storage tank of
the closed loop LOX trailer
evacuated?
1.
5
2. 7
3. 9
4. 11
What is the primary function of
the 15-liter transfer tank?
1.
To maintain system pressure
2.
To hold small volumes of LOX
for transfer
3.
To maintain system
temperature
4.
To pressurize the 50 gallon
storage tank
To transfer LOX to the converter,
the transfer tank pressure must
be in what relationship with the
storage tank pressure?
1. Less than storage tank
pressure
2. Greater than storage tank
pressure only
3. Equal to storage tank
pressure only
4. Greater than or equal to
storage tank pressure
7-37.
When using the closed loop LOX
trailer, when the converter is
full, the converter full
indicator gauge displays what
reading?
1.
5 liters
2.
10 liters
3.
Full
4.
Liquid
7-33.
Which of the following gauges
does not have green and red
indicating bands?
1.
The transfer tank pressure
gauge
2.
The storage tank pressure
gauge
3.
The storage tank liquid level
gauge
4.
The transfer tank liquid
level gauge
7-39.
Pressure in the storage tank of
the closed loop LOX trailer must
not exceed what pressure?
1.
55 psi
2.
65 psi
3.
75 psi
4.
85 psi
7-40.
Under normal conditions, using a
30 psig transfer pressure, the
TMU 70/M LOX trailer should fill
in what maximum length of time?
1.
1 to 2 minutes
2.
5 to 10 minutes
3.
12 to 15 minutes
4.
20 to 30 minutes
7-41.
You should never let the transfer
tank pressure of the closed loop
LOX trailer exceed what maximum
pressure?
1.
30 psi
2.
50 psi
3.
70 psi
4.
90 psi
7-42.
At what maintenance level are
AMEs allowed to perform
maintenance on LOX trailers?
1.
Organizational
2.
Intermediate
3.
Depot
4.
Both 2 and 3 above
48
