Smokeboat Quiz #25

Air Systems - Part 2.

1) The forward torpedo impulse flasks are located:
a) inside the pressure hull
b) in the main ballast tank
c) in the superstructure
d) inside forward trim tank

 

3) High pressure air on entering the forward torpedo room must go through a ______ before it can be utilized.
a) charging connection
b) strainer
c) check valve
d) drain manifold

 

5) Air in the second stage of the air compressors is compressed to ______ psi.
a) 31 to 38
b) 800 to 860
c) 170 to 185
d) 300 to 325

 

7) If all the air banks are completely bled down, using both compressors, how many hours will it take to charge all air banks to 3000 psi?
a) 28
b) 14
c) 21
d) 7

 

9) The total capacity of the air compressors on a submarine is ______ cu. ft. at 3000 psi.
a) 10
b) 20
c) 30
d) 40
2) The high pressure air compressors are of the:
a) four stage vertical type
b) three stage reciprocating type
c) in line vertical four stage type
d) four stage impeller type

 

4) Air cannot enter the compressors from the air banks while charging because of a:
a) stop valve
b) regulator
c) check valve
d) spring loaded valve

 

6) Air is compressed in the third stage of the compressors to a pressure of ______ psi.
a) 800 to 860
b) 300 to 325
c) 800 to 960
d) 850 to 910

 

8) The relief on the water system of the compressors are set at _____ psi.  The system requires about ______ gallons of water at a temperature of ___ degrees for sufficient cooling.
a) 125 - 35 - 70
b) 125 - 25 - 60
c) 150 - 25 - 60
d) 150 -35 - 70

 

10) The relief valves on the 600# manifold are set to open when the pressure reaches ______ psi, and the sentinel valve opens at ______ psi.
a) 610 - 750
b) 650 - 610
c) 750 - 610
d) 750 - 710

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