WFSM SET 2 UNIT 2 WITH COMPLETE
SOLUTIONS
1. (201) What does the Defense Energy Support Center (DESC) determine the type,
size, and number of fuel tanks needed at each base based on?
a. Air Force standard design.
b. The mission requirements.
c. MAJCOM recommendation.
d. Available construction dollars. - ANSWER-b. The mission requirements.
2. (201) What will horizontal underground storage tanks and cut and cover tanks that
issue jet fuel have on top of them?
a. A pumphouse.
b. A concrete cover.
c. An open-air shed.
d. Nothing, to prevent collapse of the tank. - ANSWER-a. A pumphouse.
3. (201) All new tanks must have what kind of containment?
a. A plastic liner.
b. Leak detection.
c. A concrete bottom.
d. Double-wall construction or a dike. - ANSWER-d. Double-wall construction or a dike.
4. (201) What should you use when replacing a manway cover?
a. New nuts and bolts.
b. The old gasket if it is in good condition.
c. A new gasket slightly thicker than the old one.
d. A new gasket the same thickness as the old one. - ANSWER-d. A new gasket the
same thickness as the old one.
5. (201) Damage to a tank can occur if the
a. vent or vent piping becomes clogged.
b. tank has an anti-rotation device.
c. low-level shut-off fails to work.
d. high-level alarm fails to work. - ANSWER-a. vent or vent piping becomes clogged.
6. (202) Which type of aboveground tank can withstand very little pressure or vacuum
during the filling or removal of fuel?
a. Vertical.
b. Cone roof.
c. Floating roof tank.
d. Cone roof tank with floating pan. - ANSWER-b. Cone roof.
, 7. (202) The product withdrawal line terminate inside a cone roof tank with a floating
pan in a
a. vertical position, 6 inches above the top of the sump.
b. vertical position, 6 inches above the bottom of the sump.
c. horizontal position, 6 inches above the top of the sump.
d. horizontal position, 6 inches above the bottom of the sump. - ANSWER-
8. (202) What size is the water draw-off line in an all weather tank, and where does it
terminate?
a. ½ inch, ½ inch from the sump bottom.
b. ½ inch, 1 inch from the sump bottom.
c. ¾ inch, ½ inch from the sump bottom.
d. ¾ inch, 1 inch from the sump bottom. - ANSWER-
9. (202) In the northern hemisphere, which way will the inlet line on an all-weather tank
cause the fuel to rotate, and what degree is the line turned?
a. Clock-wise, 45.
b. Clock-wise, 60.
c. Counterclockwise, 45.
d. Counterclockwise, 60. - ANSWER-
10. (202) At what level does the high-level alarm actuate on a cone roof with floating
pan?
a. Just before the high-level shut-off level.
b. Just after the high-level shut-off level.
c. Just before the high-high level alarm.
d. Just after the high-high level alarm. - ANSWER-
14. (203) The wind girder is installed on floating roof tanks to
a. keep the roof from rotating.
b. prevent the collapse of the tank shell.
c. provide a vapor recovery area under the roof.
d. provide a path to the ground for static electricity. - ANSWER-
15. (203) The roof guide is installed on floating roof tanks to
a. keep the roof from rotating.
b. prevent the collapse of the tank shell.
c. provide a vapor recovery area under the roof.
d. provide a path to the ground for static electricity. - ANSWER-
16. (203) The double-deck floating roof tank is the most efficient type of roof because
the roof
a. slopes to the center.
b. support legs are adjustable.
c. has insulating air space between decks.
SOLUTIONS
1. (201) What does the Defense Energy Support Center (DESC) determine the type,
size, and number of fuel tanks needed at each base based on?
a. Air Force standard design.
b. The mission requirements.
c. MAJCOM recommendation.
d. Available construction dollars. - ANSWER-b. The mission requirements.
2. (201) What will horizontal underground storage tanks and cut and cover tanks that
issue jet fuel have on top of them?
a. A pumphouse.
b. A concrete cover.
c. An open-air shed.
d. Nothing, to prevent collapse of the tank. - ANSWER-a. A pumphouse.
3. (201) All new tanks must have what kind of containment?
a. A plastic liner.
b. Leak detection.
c. A concrete bottom.
d. Double-wall construction or a dike. - ANSWER-d. Double-wall construction or a dike.
4. (201) What should you use when replacing a manway cover?
a. New nuts and bolts.
b. The old gasket if it is in good condition.
c. A new gasket slightly thicker than the old one.
d. A new gasket the same thickness as the old one. - ANSWER-d. A new gasket the
same thickness as the old one.
5. (201) Damage to a tank can occur if the
a. vent or vent piping becomes clogged.
b. tank has an anti-rotation device.
c. low-level shut-off fails to work.
d. high-level alarm fails to work. - ANSWER-a. vent or vent piping becomes clogged.
6. (202) Which type of aboveground tank can withstand very little pressure or vacuum
during the filling or removal of fuel?
a. Vertical.
b. Cone roof.
c. Floating roof tank.
d. Cone roof tank with floating pan. - ANSWER-b. Cone roof.
, 7. (202) The product withdrawal line terminate inside a cone roof tank with a floating
pan in a
a. vertical position, 6 inches above the top of the sump.
b. vertical position, 6 inches above the bottom of the sump.
c. horizontal position, 6 inches above the top of the sump.
d. horizontal position, 6 inches above the bottom of the sump. - ANSWER-
8. (202) What size is the water draw-off line in an all weather tank, and where does it
terminate?
a. ½ inch, ½ inch from the sump bottom.
b. ½ inch, 1 inch from the sump bottom.
c. ¾ inch, ½ inch from the sump bottom.
d. ¾ inch, 1 inch from the sump bottom. - ANSWER-
9. (202) In the northern hemisphere, which way will the inlet line on an all-weather tank
cause the fuel to rotate, and what degree is the line turned?
a. Clock-wise, 45.
b. Clock-wise, 60.
c. Counterclockwise, 45.
d. Counterclockwise, 60. - ANSWER-
10. (202) At what level does the high-level alarm actuate on a cone roof with floating
pan?
a. Just before the high-level shut-off level.
b. Just after the high-level shut-off level.
c. Just before the high-high level alarm.
d. Just after the high-high level alarm. - ANSWER-
14. (203) The wind girder is installed on floating roof tanks to
a. keep the roof from rotating.
b. prevent the collapse of the tank shell.
c. provide a vapor recovery area under the roof.
d. provide a path to the ground for static electricity. - ANSWER-
15. (203) The roof guide is installed on floating roof tanks to
a. keep the roof from rotating.
b. prevent the collapse of the tank shell.
c. provide a vapor recovery area under the roof.
d. provide a path to the ground for static electricity. - ANSWER-
16. (203) The double-deck floating roof tank is the most efficient type of roof because
the roof
a. slopes to the center.
b. support legs are adjustable.
c. has insulating air space between decks.
