Electrical and Enironmental 3
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- Heat gain and liquid oxygen boil-off is minimized in the annular space of a TMU-27/M liquid oxygen storage and transfer cart by..
- Aluminized mylar insulation.
- IN a cryotainer, the transfer of heat by conduction is slowed with the use of..
- stainless steel support struts.
- What control valve on an oxygen storage and transfer unit is closed only during head pressure buildup or the transfer of liquid oxygen?
- Vent valve.
- What determines how often you clean a cryotainer fill-drain and service line filter?
- Cleanliness of the liquid oxygen.
- During an inspection of a cryotainer, you find a faulty pressure gauge. What action should you take?
- Send the gage to TMDE for calibration.
- Which reference contains procedures for cleaning oxygen components?
- 15X-1-1
- At what temperature does the GSU-62M air purging unit maintain the heaters outlet air temperature throughout the purging cycle?
- 350 degrees F.
- You are purging a liquid oxygen storage and tranfer cart. You can consider the purge to be complete whent the temperature of the air exiting the fill and drain outlet reaches...
- 220 degree F
- The vacuum gage for a cryotainer is designed to read the pressure in the annular space in..
- microns of water.
- While transferring liquid oxygen from an oxygen storage and transger cart to an aircraft oxygen converter, you note the rate of transfer is very slow. What would cause this malfunction?
- Low tank pressure.
- Which of the following indicates a cryotainer has lost its vacuum?
- In vents continually.
- What is the minimum safe distance when servicing or maintenance is being performed on the nitrogen servicing unit?
- 50 feet.
- The rupture disc on the nitrogen servicing unit will blow when pressure inside the tank reaches...
- 450 to 600 psig.
- The low pressure side of the nitrogen servicing unit can be regulated to service pressures between...
- 0 to 350 psig.