7-66.
The gas purging set is designed
to be used with which of the
following gases?
1.
Hydrogen
2.
Nitrogen
3.
Helium
4.
Argon
7-67.
Which of the following gases can
be used with the gas purging set
if water pumped gaseous nitrogen
is not available?
1.
Helium
2.
Hydrogen
3.
Oxygen
4.
Argon
7-68.
On the gas purging set, the high
pressure relief valve relieves
pressure in excess of what
maximum pressure?
1.
3,550 psi
2.
3,600 psi
3.
3,675 psi
4.
3,750 psi
7-69.
The high pressure gas from the
gas supply cylinders is reduced
to what pressure range?
7-70.
Gas passing through the heater
assembly is heated to what
maximum temperature?
1.
165°F
2.
205°F
3.
255°F
4.
285°F
7-71.
The gas exiting the filler valve
of the gas purging set will be
within what maximum temperature
range?
1. 125 ±25°F
2. 225 ±25°F
3. 285 ±50°F
4. 325 ±50°F
7-72.
A high temperature safety switch
in incorporated in the system.
It will break the electrical
circuit to the heater assembly
when heater assembly temperature
exceeds what maximum temperature?
1.
175°F
200°F
2.
3.
250°F
4.
300°F
1. 40 ±5 psi
2. 50 ±5 psi
3. 60 ±5 psi
4. 70 ±5 psi
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