Water and Fuels systems maintenance journeyman Volume 2

In which storage area would you find routinely used, high-use materials, such as polyvinyl chloride (PVC) pipe, glue cleaner and nails?

a. Residue holding area

b. Holding area

c. Shop stock

d. Bench stock

d. Bench stock

What type of work is not part of preventive maintenance (PM)?

a. Utilities operations

b. Utilities maintenance

c. Facility maintenance

d. Equipment maintenance

a. Utilities Operations

What do you do to a base utility map any time you make a change in a utility system?

a. Discard the old prints

b. Never modify original prints

c. Have all original prints cleared through engineering

d. Note changes on prints and notify engineering for updates

d. Note changes on prints and notify engineering for updates

What three views are used in working sketches?

a. Isometric, back and side

b. Top, front, and isometric

c. Front, back and side

d. Back, top and front

b. top, front and isometric

What written documents explain points that are not readily explained by drawings?

a. Base utility maps

b. Working sketches

c. Bill of Material (BOM)

d. Specifications

d. Specifications

What formula is used to calculate chemical feed rate in pounds per day?

a. Perimeter

b. Volume

c. Dosing

d. Area

c. Dosing

What is defined as the vertical distance from the surface of water to the point of use?

a. Head

b. Weight

c. Volume

d. Velocity

a. head

What is the weight of one gallon of water?

a. 6.34lbs

b. 7.34lbs

c. 8.34lbs

d. 9.34lbs

C. 8.34lbs

How many feet of head does 1 pound per square inch (PSI) of water produce?

a. 1.31

b. 2.31

c. 3.31

d. 4.31

b. 2.31

Which metric prefix equals 1,000?

a. Milli.

b. Centi.

c. Deci.

d. Kilo

d. Kilo

Metric wrenches are sized in?

a. Kilometer

b. Decimeter

c. Centimeter

d. Millimeter

d. Millimeter

What is the study of living things?

a. Biology

b. Geometry

c. Chemistry

d. Anatomy

a. Biology

Which disease is commonly transmitted through drinking water?

a. Typhoid

b. Measles

c. Mumps

d. Cancer

a. Typhoid

What is osmotic pressure?

a. The passing of air from an area of low-salt concentration to an area of high concentration.

b. The passing of water from one area of low-salt concentration to an area of high concentration.

c. It is like atmospheric pressure, but it does not include ozone's.

d. It is like atmospheric pressure, but it includes ozone's.

b. The passing of water from one area of low-salt concentration to an area of high concentration.

What is the study of the composition of matter?

a. Biology

b. Chemistry

c. Ecology

d. Geology

b. Chemistry

What is the smallest unit of an element?

a. Molecule

b. Atom

c. Nucleus

d. Electron

b. Atom

What happens when a base and an acid are mixed?

a. Coagulation

b. Disinfection

c. Neutralization

d. Sedimentation

c. Neutralization

Gate valves are found in cross-country pipelines because?

a. they can be closed very quickly

b. their position can be seen from a long distance

c. they allow line scrappers to pass through them

d. they can regulate the flow through the pipeline

c. they allow line scrappers to pass through them

How many different basic designs of gate valves are there?

a. 1

b. 2

c. 3

d. 4

b. 2

How often do you perform gate valve inspections in fuel/water systems?

a. As required

b. Semiannually/ annually

c. Quarterly/ semiannually

d. Bi-monthly/ bi-annually

c. Quarterly/ semiannually

During repacking, you should place a gate valve in what position?

a. Open

b. Closed

c. Either open or closed

d. Intermediate between open and closed.

b. Closed

What type of packing is most commonly used on globe valves?

a. Nylon

b. Viton

c. Teflon string

d. Graphite string

c. Teflon string

Non-lubricated plug valves generally fall into four main types including lift, movable-seat, resilient-liner and?

a. Check

b. Globe

c. Butterfly

d. double block and bleed (DBB)

d. double block and bleed (DBB)

Which item prevents leakage past the hub of the resilient-liner plug valve?

a. O-ring

b. Diaphragm seal

c. Asbestos gasket

d. Graphite packing

b. Diaphragm seal

What type of valve does NOT have to be removed during hydrostatic testing?

a. Double block and bleed valve (DBB) plug valve

b. Resilient liner plug valve

c. Gate valve

d. Ball valve

a. Double block and bleed valve (DBB) plug valve

What inspection and maintenance items are performed on a double block and bleed plug valve during a routine scheduled interval?

a. Check for leaks and proper operation

b. Operator lubrication, bleed test and corrosion control.

c. Proper operation, operator lubrication, checking for leaks, and corrosion control.

d. Proper operation, checking for leaks, corrosion control and replacement of the sealing slips

c. Proper operation, operator lubrication, checking for leaks and corrosion control

A 12 inch non-lubricated plug valve will have what type of operator?

a. Lever

b. Chain

c. Wrench

d. Worm gear

d. worm gear

What is the FIRST step in removing a General Twin Seal plug valve operator?

a. Drain the line

b. Close the main valve

c. Open the main valve

d. Open the manual bleed valve

b. Close the main valve

What type of valve used in fuel systems must operate from fully closed to fully open with a 90-degree rotation?

a. Gate

b. Ball

c. Plug

d. Globe

b. Ball

What type of valve is used to control the direction of flow in a system, but does not affect the rate of flow?

a. Ball

b. Gate

c. Check

d. Butterfly

c. Check

The seat and disc of which valve must be removable without removing the entire valve from the pipeline?

a. Gate

b. Plug

c. Globe

d. Check

d. Check

You slightly open a butterfly valve before relieving the line pressure to?

a. equalize the pressure on both sides of the valve

b. increase valve clearance

c. equalize static potential

d. loosen the flange seals

a. equalize the pressure on both sides of the valve

What must you do before you can remove a butterfly valve from a pipeline?

a. Remove the handle

b. Place it in the fully open position

c. Place it in the fully closed position

d. Notify the major command (MAJCOM) fuels engineer

c. place it in the fully closed position

What is the first step when checking the pilot control setting on a pressure-reducing valve (PRV)?

a. Drop the pressure upstream of the valve

b. Drop the pressure downstream of the valve

c. Ensure a pressure gauge is installed upstream of the valve.

d. Ensure a pressure gauge is installed downstream of the vlave

d. Ensure a pressure gauge is installed downstream of the vlave

What do you do if the pressure-relief valve is still malfunctioning after attempting pressure setting adjustments?

a. Replace the valve

b. Use a different pressure gauge

c. Send it back to the manufacturer

d. Send it to the precision measurements equipment laboratory. (PMEL)

a. Replace the valve

When testing the high level setting of an altitude valve, you must monitor the?

a. water distribution system pressure

b. tank water level when it is being filled

c. tank water level when it is being emptied

d. flange float assembly on the side of the tank

b. tank water level when it is being filled

Why must care be taken when installing a valve box over a pipe valve?

a. To ensure proper alignment of the valve key to the valve operating nut

b. So that the valve box is not installed upside down

c. To ensure the valve box fits snugly on the pipe

d. To prevent debris from entering the valve box

a. To ensure proper alignment of the valve key to the valve operating nut

Why should you never allow a valve box to rest on a pipe?

a. The pipe will damage the valve box

b. The valve box may damage the pipe

c. Access to the operating nut will misaligned

d. The metal to metal contact will cause corrosion.

b. The valve box may damage the pipe

Who must you notify before starting work on a fuel system that could interfere with the base flying mission?

a. Wing Safety

b. Base operations

c. Fuels resource center

d. Command fuels engineer

c. Fuels resource center

What specialized equipment must you have to ensure system integrity when removing a valve form a system?

a. Locks

b. Drip pans

c. Blind flanges

d. As-built drawings

c. Blind flanges

When removing a manual valve from a fuel pipeline, which bolts on the valve should you loosen first to drain the fuel into a drip pan?

a. Top

b. Bottom

c. Left side

d. Right side

b. Bottom

When reinstalling a manual valve, which bolts should you insert first?

a. Top

b. Bottom

c. Left side

d. Right side

b. bottom

The fuel system configuration that would not require you to manually bleed air out of the pipeline after a valve is replaced, involves pumping?

a. through a meter

b. through a fill stand

c. through a filter/separator (F/S)

d. directly into a storage tank

d. directly into a storage tank

What determines the gallon per minute delivery of a gear pump?

a. Motor revolutions per minute and gear size

b. Size of pipe and number of gears

c. Size of the pump and diameter of discharge

d. Space around gears and rpms turning the pump

a. Motor revolutions per minute and gear size

What type of pump has a built-in pressure control valve?

a. Centrifugal

b. Rotary vane

c. External gear

d. Deep well turbine

b. Rotary vane

What type of lubricate is used and how is it applied to the Blackmer pump ball bearings?

a. Silicon based grease: by hand

b. Lithium based grease: by hand

c. Silicon based grease: hand pressure gun

d. Lithium based grease: hand pressure gun

d. Lithium based grease: hand pressure gun

How would you troubleshoot a double diaphragm pump that is reciprocating but no liquid is being pumped?

a. Check the check balls seating

b. Replace the ruptured diaphragm

c. Clean the dirt off of the actuator valve

d. Replace the seals on the actuator valve

a. Check the check balls seating

What components of the mud hog diaphragm pump allows water to enter the pump at the inlet, traps the water, then allows the water to be expelled at the pumps outlet?

a. Ball check

b. Clapper valves

c. Rotating engine cams

d. Diaphragm assembly

b. Clapper valves

If a centrifugal pump develops 600 gallons per minute at 350 feet of head, how much pounds per square inch is developed at 600 gpm when pumping JP-8?

a. 12.3 psi

b. 34 psi

c. 43.3 psi

d. 123 psi

d. 123 psi

What type of impeller is the most efficient and develops the highest pressure?

a. Open

b. Closed

c. Semi-open

d. Combination

b. closed

What should you do if the centrifugal pump binds after you have replaced parts in the self-priming pump portion of a Gilbarco pump?

a. File the rotor

b. File the vanes

c. add 1/4 inch spacers

d. add a paper thin gasket

d. add a paper thin gasket

What is the most common type of American Petroleum Institute (API) 610 pump used in the Air Force fuel system?

a. Single stage centrifugal, radial split case, with end suction and top discharge.

b. Two stage centrifugal, radial split case, with end suction and top discharge.

c. Single stage centrifugal, radial split case, with end suction and discharge

d. Two stage centrifugal, radial split case, with end suction and discharge

a. Single stage centrifugal, radial split case, with end suction and top discharge.

What component is installed on an American Petroleum Institute (API) 610 pump to minimize leakage in case of complete mechanical seal failure?

a. O-ring seal

b. Bearing end cap

c. Teflon packing rings

d. Non-sparking throttle bushings

d. Non-sparking throttle bushings

The total measured shaft deflection allowed when aligning an American Petroleum Institute (API) 610 pump shaft and motor shaft must be less than how many inches?

a. 0.001

b. 0.002

c. 0.003

d. 0.004

b. 0.002

How often is an API 610 pump operationally inspected?

a. Monthly

b. Quarterly

c. Semiannually

d. Annually

b. Quarterly

The number of column shaft sections a deep well turbine will have is determined by the?

a. Capacity of the tank

b. pump outlet capacity

c. distance between the tank roof and tank bottom.

d. distance between the pump tank flange and the tank floor.

d. distance between the pump tank flange and the tank floor.

When adjusting a deep well pump's impellers, the proper setting will give the minimal clearance needed to create the most efficient suction at the?

a. Impellers eye

b. bottom of the tank

c. impellers discharge

d. pump discharge head

a. Impellers eye

You are replacing a mechanical seal on a deep well turbine with threaded couplings. With what do you cover the shaft threads to protect the mechanical seals O-rings?

a. Grease

b. Teflon tape

c. Electrical tape

d. Paper sleeve

b. Teflon tape

What action should you take if you notice a slight leak on a mechanical seal you have just installed?

a. Replace the O-ring

b. Replace the seal and O-ring

c. Stop the pump, restart, and see what happens

d. Allow reasonable time for the seals to adjust

d. Allow reasonable time for the seals to adjust

In order to align a pump and motor, usually you need to?

a. Move the pump

b. Move the motor

c. Adjust the shaft coupling

d. loosen the mechanical seal

b. move the motor

What is the standard opening rate for the 81AF-8, non-surge check valve?

a. 10 seconds

b. 20 seconds

c. 30 seconds

d. 40 seconds

b. 20 seconds

What would cause the 81AF-8, non -surge check valve, to fail open?

a. Loose diaphragm washer

b. Hytrol check installed backwards

c. Closed downstream manual valve

d. Air in the main valve cover chamber

c. Closed downstream manual valve

What happens when an individual planning a job orders the incorrect material by mistake?

a. Civil engineering (CE) must accept the material, even if it cannot be used for that job

b. Incorrect materials that are actually delivered are returned at the sender’s expense

c. The individual who ordered the incorrect materials is entered into training

d. the individual who planned the job pays for the incorrect material

a. Civil engineering (CE) must accept the material, even if it cannot be used for that job

Which plan shows a top view of the building as if the top was cut off (cross-sectional)?

a. Mechanical plan

b. Foundation plan

c. Elevation plan

d. Floor plan

d. Floor plan

The components of the 81AF nonsurge check valve (CV) are one CV flow control, a valve position indicator (VPI), and

a. one hytrol CV

b. two hytrol CVs

c. one swing CV

d. two swing CVs

d. two swing CVs