WFM Vol. 2B

1. What should you use when replacing a manway cover?

New nuts and bolts

The old gasket if it is in good condition

A new gasket slightly thicker than the old one.

A new gasket the same thickness as the old one.

2. All new tanks must have what kind of containment?

A plastic liner

Leak detection.

A concrete bottom.

Double-wall construction or a dike.

3. Damage to a tank can occur if the

Vent or vent piping becomes clogged.

Tank has an anti-rotation device.

Low-level shut-off fails to work.

High-level alarm fails to work.

4. The roof guide is installed on floating roof tanks to

Keep the roof from rotating.

Prevent the collapse of the tank shell.

Provide a vapor recovery area under the roof.

Provide a path to the ground for static electricity.

5. In extremely cold climates, what should you do to the roof drain line?

Fill it with salt water.

Fill it with antifreeze only.

Fill it with 10 SAE weight oil.

Fill it with 50/50 mix of antifreeze and water.

6. Emergency-stop switches are what color?

Red

Amber

Orange

Yellow

7. What does the Defense Energy Support Center (DESC) determine the type, size, and number of fuel tanks needed at each base based on?

Air Force standard design

The mission requirements.

MAJCOM recommendation

Available construction dollars.

8. What will horizontal underground storage tanks and cut and cover tanks that issue jet fuel have on top of them?

A pumphouse

A concrete cover.

An open-air shed.

Nothing, to prevent collapse of the tank.

9. Electrical controls in hazardous areas must be proofed (protected) against

Dust.

Vapor.

Weather.

Explosion.

10. You must clean an operating tank that is not internally coated and does not have a receiving filter separator every

4 years.

6 years.

8 years.

10 years.

11. How would you take care of internal corrosion for the low-level control attached to the liquidometer?

Wire brush clean and replace the cover gasket.

Wire brush clean and replace the cover.

Air it out and replace the cover gasket.

Air it out and replace the cover.

12. Who will assign a qualified tank entry supervisor to supervise a tank cleaning operation?

Shop supervisor.

Section superintendent.

Base safety.

MAJCOM fuels engineer.

13. During tank cleaning, how often must you record a vapor reading?

Every 10 minutes.

Every 15 minutes.

At the beginning of the tank cleaning.

At the beginning and end of the tank cleaning.

14. How do you reset the lower explosive limit (LEL) sensor on the MultiRAE PGM–50?

Press the “reset” button.

Sample fresh air for 60 seconds then press the “Y/+” button.

Turn the unit off then back on.

PMEL must replace the sensor.

15. The double-deck floating roof tank is the most efficient type of roof because the roof

Slopes to the center.

Support legs are adjustable.

Has insulating air space between decks

Water drains easily toward the center.

16. You must clean an operating storage tank that does not have a receiving filter separator but has internal coating every

6 yrs

7 yrs

8 yrs

10 yrs

17. How often do you clean a Mogas or diesel tank?

4 years.

6 years.

8 years.

By direction of the fuels management office.

18. How many bands are used to identify JP–8 fuel?

One.

Two.

Three

Four

19. What would you use to check the liquidometer accuracy?

Tape and bob.

Liquid level float.

Liquid level gauge.

Weighted gauge tester.

20. Which of the following fuels normally contains a higher concentration of benzene?

JP–4.

JP–8.

Diesel.

Gasoline.

21. Who should do the repairs when an A. O. Smith meter requires major maintenance?

Manufacturer

Refueling maintenance shop.

Liquid fuels maintenance shop.

Department of Weights and Measurement.

22. A safety harness, used in tank cleaning, is good for a maximum of how many years from the date stamped on the harness?

5.

10.

15.

20.

23. What is the most probable cause for a meter to over-register?

Air in the line.

Dirt in the line.

Excessive flow.

Excessive pressure.

24. What size is the water draw-off line in an all weather tank, and where does it terminate?

½ inch, ½ inch from the sump bottom.

½ inch, 1 inch from the sump bottom.

¾ inch, ½ inch from the sump bottom.

¾ inch, 1 inch from the sump bottom.

25. How long before entering a fuel tank must you request permission from your MAJCOM?

10 days.

15 days.

10 workdays.

15 workdays.

26. Communication gear must be used during the cleaning of an underground JP–8 tank when the

Tank capacity is 10,000 gallons.

Tank capacity is 25,000 gallons.

Manhole access is 6 feet below ground level.

Manhole access is 12 feet below ground level.

27. At what level are the support legs on a cone roof tank with floating pan set at for day-to-day business?

1½ feet.

3 feet.

4½ feet

6 feet

28. What type of vent is located on a floating pan?

Slot

Open

Bleeder.

Overflow.

29. All electrical equipment to be used within 50 feet of any fuel system must be defined as which class in the National Electrical Code?

Class I, Division I, Group C.

Class I, Division I, Group D.

Class I, Division II, Group C.

Class I, Division II, Group D.

30. How many storage tanks would normally be used at an automotive service station that offers MOGAS, and diesel fuel?

1 for each product.

2 for each product.

3 for each product.

4 for each product.

31. What level above the tank bottom is the low-level shut-off set at on a 25,000 bbl cone roof tank with floating pan?

18 inches.

24 inches.

27 inches.

30 inches.

32. When filling the tank to check the high-high-level alarm, what must be disabled?

The high-level alarm.

The low-level switch.

The low-level shut-off valve.

The high-level shut-off valve.

33. Which one of the following is not the responsibility of the MAJCOM fuels engineer's representative during the contract cleaning of a fuel tank?

To inspect the contractor’s equipment.

To advise the contractor of known potential hazards.

To stop the contractor’s work for contract violations.

To act as the quality assurance evaluator pertaining to the work.

34. During tank cleaning, when should you remove heavily contaminated clothing?

Immediately, after leaving the area.

After being drenched with water.

At the end of the day, after leaving the area.

At the end of the day, after being drenched with water.

35. What must be done to fuel pumps and motors located in a pit if they are to be abandoned?

Drained only.

Drained and capped off.

Remove, capped off and oiled.

Removed and stored in a dry place.

36. What maintains a tight seal in the measuring chamber of an A. O. Smith meter?

Carbon vanes.

Teflon vane inserts.

A coating on the inside wall.

A film of oil on the inside wall.

37. When can people enter a fuel tank without protective equipment?

0 percent LEL only.

0 percent LEL and the tank has been washed out and dried.

0 percent LEL, the tank has been washed out and dried, the tank is known never to have

Never.

38. What must be done to meters in a pit that is to be abandoned?

Drained only.

Drained and capped off.

Drained, capped off and oiled.

Drained, removed, oiled, and placed in storage.

39. How is the register of a meter changed to match the actual fuel dispensed through the meter?

Reset the register head.

Change the gear train ratio.

Replace the register counter.

Remove and clean the register counter.

40. Which type of aboveground tank can withstand very little pressure or vacuum during the filling or removal of fuel?

Vertical.

Cone roof.

Floating roof tank.

Cone roof tank with floating pan.

41. 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?

Clock-wise, 45.

Clock-wise, 60.

Counterclockwise, 45.

Counterclockwise, 60.

42. What type of grounding rods are used on aboveground fuel tanks?

Copper.

Aluminum.

Stainless steel.

Galvanized steel.

43. For safe dispersal of fuel vapors, a storage tank vent pipe must extend how high?

10 feet.

11 foot

12 foot

13 foot.

44. The wind girder is installed on floating roof tanks to

Keep the roof from rotating.

Prevent the collapse of the tank shell

Provide a vapor recovery area under the roof.

Provide a path to the ground for static electricity.

45. The fuse link on a fuse link valve used on a cone roof tank will normally melt at what temperature?

160° F.

180° F.

200° F.

220° F.

46. Coalescers in an API 1581 filter separator are rated for what minimum gallons per minute (gpm) per inch of length?

1.27.

2.27

7.33

8.33

47. When the float in a vertical filter separator rises to the top position, what happens?

The water drain valve closes.

The fuel discharge valve closes.

The nonsurge check valve opens.

Nothing, fuel is allowed to flow normally.

48. If a fuel system has a maximum deadhead pressure of 125 pounds per square inch (psi), at what psi should the filter/separator pressure relief be set?

132.5

135

137.5

142

49. How many hoses does a master meter have and where are they connected?

2 hoses; inlet side.

2 hoses; outlet side.

3 hoses; 1 on the inlet, 2 on the outlet side.

3 hoses; 1 on the outlet, 2 on the inlet side.

50. What is the minimum speed for a scraper when cleaning a pipeline?

1 mph.

2 mph.

3 mph

4 mph.

51. You have replaced the pump head of a dispenser pump but the pump still binds. What can you do to solve the problem?

Check shaft for burrs and remove if necessary.

Remove the head and reduce the amount of gaskets until the pump is free.

Remove head and check the rotor and idler gear alignment, correct if necessary.

Increase the number of gaskets used under the head, one at a time, until the pump is free.

52. At what level must the automatic bleeder vent supports be set when preparing for an internal inspection and cleaning?

3 feet.

4 feet.

5 feet.

6 feet.

53. Leakage inside the back of a liquid control meter is caused by a faulty

Viton seal.

Teflon seal.

O-ring.

Square ring.

54. What type of valve is found on the suction line, inside the tank, if the fuel dispensing units are self-contained?

Foot valve.

Pressure relief valve.

Pressure reducing valve.

Hydraulic pressure valve.

55. At what vapor level may workers initially enter a tank for tank cleaning?

Below 10 percent LEL.

Below 20 percent LEL.

Below 40 percent LEL.

Below 50 percent LEL.

56. What will change positions and to what valve will pressure be directed when the float of the pilot valve assembly is in the TOP position?

Rotary disc; water drain valve.

Rotary disc; fuel discharge valve.

Adapter mounting rod; water drain valve.

Adapter mounting rod; fuel discharge valve.

57. Tank truck unloading headers will be spaced about how many feet apart?

40

60

80

100

58. What prevents fuel from entering a roof drain line?

Flange gaskets and Teflon® ring packing.

Flange gaskets and asbestos ring packing.

Threaded gaskets and Teflon® ring packing.

Threaded gaskets and asbestos ring packing.

59. You must clean a bulk storage tank that has a receiving filter separator and is internally coated every

4 years.

6 years.

8 years.

10 years.

60. How is the product identification displayed on an aboveground tank?

Yellow bands with white letters on a black background.

Yellow bands with black letters on a white background.

Black bands with white letters on a yellow background.

Black bands with yellow letters on a white background.

61. During initial cleaning, at what percent of the lower explosive limit (LEL) must you suspend washing down a tank?

10

20

30

40

62. What should you do if the restriction indicator on a MC–7 air compressor is tripped?

Reset the indicator.

Clean the air filter element.

Insure the unloader valve is open.

Partially close the air discharge service valves.

63. If the meter register on a dispenser does not reset to zero or the numerical wheels do not turn during delivery, the probable cause is a

Broken shear pin.

Broken gear tooth.

Misaligned drive shaft.

Misaligned variator band.

64. At what level does the high-level alarm actuate on a cone roof with floating pan?

Just before the high-level shut-off level.

Just after the high-level shut-off level.

Just before the high-high level alarm.

Just after the high-high level alarm.

65. What is the minimum recommended voltage for the MultiRAE PGM–50?

4.2 volts.

4.4 volts.

4.8 volts.

5.2 volts.

66. When the float in a filter separator is in the top position, to what component is pressure applied to close 40AF–2C fuel discharge valve?

Ejector.

Powertrol

Auxiliary hytrol.

Three-way control valve.

67. The liquid control meter uses what type of movement to register the fuel?

Rotary vanes.

Two spiral meshed rotor plates.

Four synchronized pistons and buckets.

Blocking rotor and two displacement rotors.

68. When removing the KMU–416/F modification kit with 9 additional elements, how many elements must you remove from the front side to balance the manifold?

3

6

9

15

69. About how far above the tank floor is the first stage of the deep-well turbine pump located?

3 inches

6 inches

9 inches.

12 inches.

70. What do unaccountable fluctuations of the rectifier in a cathodic protection system indicate?

Stray-current activity.

High water table.

Exhausted cathodes.

Low water table.

71. What should the vacuum reading be on a normal self contained dispenser pump installation?

6 to 8 inches.

4 to 6 inches.

2 to 4 inches.

1 to 2 inches.

72. The product withdrawal line terminate inside a cone roof tank with a floating pan in a

Vertical position, 6 inches above the top of the sump.

Vertical position, 6 inches above the bottom of the sump.

Horizontal position, 6 inches above the top of the sump.

Horizontal position, 6 inches above the bottom of the sump.

73. What type of strainer is normally used as a line strainer in a pipeline?

“Y”.

Basket.

Flange.

Cylindrical.

74. At a minimum, how often are simple pressure gauges calibrated?

Monthly

Quarterly.

Semiannually.

Annually.

75. An impressed-current cathodic protection system uses anodes made of

Zinc

Steel.

Carbon

Magnesium.

76. The correct position of a dispenser meter cover is determined by

A position mark on the cover.

Two dowel pins in the cover flange.

Two locating holes in the bottom flange of the cylinder body.

A dowel pin in the top flange of the cylinder body and a locating hole in the cover flange.

77. When the roof supports on a floating roof tank are in the UP position, at what level will the roof rest above the floor?

3 feet.

4 feet.

5 feet.

6 feet.

78. What type grounding rod, if any, is used on a horizontal fuel tank installed under the pumphouse floor?

Copper.

Galvanized.

Stainless steel.

Not required.

79. What type of electrical units and wiring is used in non-hazardous locations, such as pressurized control rooms?

Explosion-proof, enclosed type.

General purpose, enclosed type.

Explosion-proof, non-enclosed type.

General purpose, non-enclosed type.

80. How are the coalescers and separators mounted in an API 1581 filter separator?

Coalescers at the top and separators at the bottom.

Coalescers at the bottom and separators at the top.

Coalescers mounted over the separators and attached to the bottom of the filter separator.

Coalescers mounted under the separators and attached to the bottom of the filter separator.

81. If you changed the Brodie coarse adjustment one position, what change would be made to the register reading?

3.6 gallons per 100 gallons.

6 gallons per 100 gallons.

3.6 gallons per 1,000 gallons.

6 gallons per 1,000 gallons.

82. What type of tank gauge can test a tank for leaks?

Manual.

Mechanical float.

Pneumatic probe.

Magnetostrictive probe.

83. A differential pressure gauge installed on a filter/separator measures the difference between the inlet

Low pressure and the outlet low pressure.

High pressure and the outlet high pressure.

Low pressure and the outlet high pressure.

High pressure and the outlet low pressure.

84. If an automatic shutoff nozzle shuts off all the time, what is the first thing you should check?

Latch pin.

Vacuum tube.

Chamber diaphragm.

O-ring in the poppet valve.

85. The Class I, Division 2, hazardous area around a service station dispenser extends outward how many feet and upward how many inches?

20 feet, 18 inches.

20 feet, 24 inches.

50 feet, 18 inches.

50 feet, 24 inches.

86. What is the difference between the motors used in the self-contained single dispensing and the dual dispensing units?

Single dispensing motors have a higher gpm rate

Single dispensing motors have a higher horsepower rating.

Dual dispensing motors have a higher gpm rate.

Dual dispensing motors have a higher horsepower rating.

87. The self-contained dispenser pump regulating valve is functioning properly when a pressure gauge is reading

18 psi one hour after the pump is turned off.

18 psi while the pump is running with an open nozzle.

24 psi one hour after the pump is turned off.

24 psi while the pump is running with an open nozzle.

88. When receiving fuel by pipeline, what is the first component that fuel passes through at the bulk storage area?

Pipe manifold.

Filter/separator.

Pressure relief valve.

Pressure reducing valve.

89. When gravity-filling a horizontal filter/separator from another horizontal filter separator, how many minutes must you wait for the two filter separators to equalize?

5

10

15

20

90. If the 40AF–2A, fuel discharge valve, fails to open, what should you check first?

Main valve diaphragm.

Pilot valve assembly.

Three-way valve diaphragm.

Water in the filter/separator.

91. The emergency-stop switches have what type of contacts and complete which circuits?

Open; low-voltage for the fuel transfer pump control.

Closed; low-voltage for the fuel transfer pump control.

Open; high-voltage for the fuel transfer pump control.

Closed; high-voltage for the fuel transfer pump control.

92. To check for sufficient pump pressure on a self-contained dispensing unit, where should you install the pressure gauge?

In the bypass valve.

In the float chamber.

On top of the meter cover.

On the pump discharge line.

93. What is the inspection frequency for the fabric seal on a floating roof tank?

Weekly

Monthly

Semi-annual.

Annually.

94. The purpose of the manual override switch on a vehicle identification reader (VIR) is to

Operate the dispenser without power.

Determine whether a problem originates in the dispenser or the VIR.

Allow you to enter the vehicle identification link (VIL) code from the panel.

Prevent people from using their vehicle identification link (VIL) to receive fuel.

95. Artificial lights, other than battery-powered safety lanterns, can be used only during tank cleaning after what condition is met?

The tank cleaning supervisor has made their initial entry.

The LEL inside the tank is below 20 percent.

The tank has been washed down.

The tank is vapor free.

96. When the water drain valve is removed from the filter separator, where is the control tubing that once went to the water drain cover chamber rerouted?

Nowhere, it is plugged off.

Upstream of the fuel discharge valve.

Downstream of the fuel discharge valve.

To the cover chamber of the fuel discharge valve.

97. What size is the cleanout line on an underground tank, and where does it terminate outside the tank?

½ inch, 6 inches above ground level.

½ inch, 12 inches above ground level.

¾ inch, 6 inches above ground level.

¾ inch, 12 inches above ground level.

98. How many selectable fuel product pumps does each master vehicle identification reader (MVIR) have the capacity to control?

2.

4.

6

8

99. The drive shaft on a three-piston vertical positive displacement meter will make how many revolutions for each gallon of fuel delivered?

2

4

6

8

100. When manually gauging a tank, why must you keep the tape in contact with the gauge pipe?

To keep the tape from twisting

To easily read the tape increments.

To prevent the discharge of a spark.

To steady the tape when lowering the bob.

Wfm Vol. 2b

1. What should you use when replacing a manway cover?

2.

What first name or nickname would you like us to use?

2. All new tanks must have what kind of containment?

3. Damage to a tank can occur if the

4. The roof guide is installed on floating roof tanks to

5. In extremely cold climates, what should you do to the roof drain line?

6. Emergency-stop switches are what color?

7. What does the Defense Energy Support Center (DESC) determine the type, size, and number of fuel tanks needed at each base based on?

8. What will horizontal underground storage tanks and cut and cover tanks that issue jet fuel have on top of them?

9. Electrical controls in hazardous areas must be proofed (protected) against

10. You must clean an operating tank that is not internally coated and does not have a receiving filter separator every

11. How would you take care of internal corrosion for the low-level control attached to the liquidometer?

12. Who will assign a qualified tank entry supervisor to supervise a tank cleaning operation?

13. During tank cleaning, how often must you record a vapor reading?

14. How do you reset the lower explosive limit (LEL) sensor on the MultiRAE PGM–50?

15. The double-deck floating roof tank is the most efficient type of roof because the roof

16. You must clean an operating storage tank that does not have a receiving filter separator but has internal coating every

17. How often do you clean a Mogas or diesel tank?

18. How many bands are used to identify JP–8 fuel?

19. What would you use to check the liquidometer accuracy?

20. Which of the following fuels normally contains a higher concentration of benzene?

21. Who should do the repairs when an A. O. Smith meter requires major maintenance?

22. A safety harness, used in tank cleaning, is good for a maximum of how many years from the date stamped on the harness?

23. What is the most probable cause for a meter to over-register?

24. What size is the water draw-off line in an all weather tank, and where does it terminate?

25. How long before entering a fuel tank must you request permission from your MAJCOM?

26. Communication gear must be used during the cleaning of an underground JP–8 tank when the

27. At what level are the support legs on a cone roof tank with floating pan set at for day-to-day business?

28. What type of vent is located on a floating pan?

29. All electrical equipment to be used within 50 feet of any fuel system must be defined as which class in the National Electrical Code?

30. How many storage tanks would normally be used at an automotive service station that offers MOGAS, and diesel fuel?

31. What level above the tank bottom is the low-level shut-off set at on a 25,000 bbl cone roof tank with floating pan?

32. When filling the tank to check the high-high-level alarm, what must be disabled?

33. Which one of the following is not the responsibility of the MAJCOM fuels engineer's representative during the contract cleaning of a fuel tank?

34. During tank cleaning, when should you remove heavily contaminated clothing?

35. What must be done to fuel pumps and motors located in a pit if they are to be abandoned?

36. What maintains a tight seal in the measuring chamber of an A. O. Smith meter?

37. When can people enter a fuel tank without protective equipment?

38. What must be done to meters in a pit that is to be abandoned?

39. How is the register of a meter changed to match the actual fuel dispensed through the meter?

40. Which type of aboveground tank can withstand very little pressure or vacuum during the filling or removal of fuel?

41. 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?

42. What type of grounding rods are used on aboveground fuel tanks?

43. For safe dispersal of fuel vapors, a storage tank vent pipe must extend how high?

44. The wind girder is installed on floating roof tanks to

45. The fuse link on a fuse link valve used on a cone roof tank will normally melt at what temperature?

46. Coalescers in an API 1581 filter separator are rated for what minimum gallons per minute (gpm) per inch of length?

47. When the float in a vertical filter separator rises to the top position, what happens?

48. If a fuel system has a maximum deadhead pressure of 125 pounds per square inch (psi), at what psi should the filter/separator pressure relief be set?

49. How many hoses does a master meter have and where are they connected?

50. What is the minimum speed for a scraper when cleaning a pipeline?

51. You have replaced the pump head of a dispenser pump but the pump still binds. What can you do to solve the problem?

52. At what level must the automatic bleeder vent supports be set when preparing for an internal inspection and cleaning?

53. Leakage inside the back of a liquid control meter is caused by a faulty

54. What type of valve is found on the suction line, inside the tank, if the fuel dispensing units are self-contained?

55. At what vapor level may workers initially enter a tank for tank cleaning?

56. What will change positions and to what valve will pressure be directed when the float of the pilot valve assembly is in the TOP position?

57. Tank truck unloading headers will be spaced about how many feet apart?

58. What prevents fuel from entering a roof drain line?

59. You must clean a bulk storage tank that has a receiving filter separator and is internally coated every

60. How is the product identification displayed on an aboveground tank?

61. During initial cleaning, at what percent of the lower explosive limit (LEL) must you suspend washing down a tank?

62. What should you do if the restriction indicator on a MC–7 air compressor is tripped?

63. If the meter register on a dispenser does not reset to zero or the numerical wheels do not turn during delivery, the probable cause is a

64. At what level does the high-level alarm actuate on a cone roof with floating pan?

65. What is the minimum recommended voltage for the MultiRAE PGM–50?

66. When the float in a filter separator is in the top position, to what component is pressure applied to close 40AF–2C fuel discharge valve?

67. The liquid control meter uses what type of movement to register the fuel?

68. When removing the KMU–416/F modification kit with 9 additional elements, how many elements must you remove from the front side to balance the manifold?

69. About how far above the tank floor is the first stage of the deep-well turbine pump located?

70. What do unaccountable fluctuations of the rectifier in a cathodic protection system indicate?

71. What should the vacuum reading be on a normal self contained dispenser pump installation?

72. The product withdrawal line terminate inside a cone roof tank with a floating pan in a

73. What type of strainer is normally used as a line strainer in a pipeline?

74. At a minimum, how often are simple pressure gauges calibrated?

75. An impressed-current cathodic protection system uses anodes made of

76. The correct position of a dispenser meter cover is determined by

77. When the roof supports on a floating roof tank are in the UP position, at what level will the roof rest above the floor?