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SKT Book 4 > B4U2 Aircraft Arresting System > Flashcards

B4U2 Aircraft Arresting System Flashcards

1
Q

What is the energy-absorbing capacity of the BAK–12?

A

65,000,000 foot-pounds.

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2
Q

List the three subsystems of the BAK–12’s hydraulic system.

A

The static system, the main or braking system, and the rewind clutch system.

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3
Q

What is the static pressure of the BAK–12?

A

175 psi

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4
Q

How is pre-tension maintained on the pendant of the BAK–12 arresting system?

A

Actuating the shuttle valve applies accumulator pressure to the brakes.

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5
Q

What provides the clamping force between the tape and tape connector of a BAK–12 arresting system?

A

The tape attaches to the connector with a mechanical clamping arrangement with the tension of the tape.

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6
Q

List the components of the BAK−12 rewind clutch system.

A

The rewind clutch system contains an actuating pump, a hose assembly, a swivel joint, a selector valve, and a friction clutch.

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7
Q

What AFI is our primary source for guidance in the managing aircraft arresting systems?

A

AFI 32-1043

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8
Q

When must a certification engagement be conducted?

A

Certification engagements are required after initial installation or whenever the arresting system has not had an engagement at a speed sufficient to exercise the hydraulic system within the preceding 12 months.

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9
Q

How many HPUs are included on each MAAS trailer?

A

2

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10
Q

The front and rear jacks are heavy-duty cylinders rated for what pressures?

A

3,000 psi

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11
Q

MAAS cables come in what two lengths?

A

90 and 153 feet

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12
Q

What is the minimum runout distance needed when determining the site for MAAS installation?

A

990 feet PLUS the aircraft length.

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13
Q

What is the required length of the turnbuckles for concrete installation?

A

39 inches.

“Long and hard, short and soft”

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14
Q

What tool will give a 3/8 -inch clearance between the bolt head and anchor plate

A

The taper bolt gauge

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15
Q

What does each K/M stake line consists?

A

One turnbuckle, one master link, one stake guide, three stakes, two spacers, and two stake
spacers.

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16
Q

When proof loading the MASS, what step is required after the hydraulic line is reattached?

A

Rewind tapes and bleed brakes.

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17
Q

When should the MAAS/BAK−12 be overhauled?

A

10 years or 500 arrestments, whichever occurs first.

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18
Q

How often are purchase tapes replaced?

A

Maximum for 48 months.

19
Q

What is used to determine an engagements regime?

A

Regime chart

20
Q

What can be read to better understand troubleshooting the MAAS?

A

The troubleshooting charts

21
Q

What could cause erratic action on the MAAS trailer hydraulic system?

A

Air in system, viscosity of hydraulic fluid too high, internal leakage in cylinder, cylinder sticking or binding.

22
Q

What could cause the trailer not to raise?

A

HPU not connected, hydraulic fluid leak, foreign object in axle frame path, and insufficient fluid.

23
Q

In the BAK−12 arresting system, the hydraulic pressure gauge is used for

a. controlling the flow of fluid from the pump to the clutch.
b. measuring the energy-absorbing capacity of the system.
c. hydrostatic testing and synchronization.
d. maintaining tape tension.

A

C. Hydrostatic testing and sychronization

24
Q

On the BAK−12 hydraulic system, what is used to maintain a light pressure on the brakes to keep the proper tension on the pendant while in the BATTERY position?

a. Brake pressure.
b. Rewind system.
c. Static pressure.
d. Control system.

A

C. Static pressure

25
Q

On the BAK−12 arresting system, what eliminates tape twist caused by the rolling action of the pendant supports?

a. Deck sheaves.
b. Tape guide.
c. Tire casing.
d. Brushes.

A

C. Tire casing

26
Q

For rewind operation, which component of the BAK−12 rewind clutch system connects the rewind sprocket to the reel assembly shaft?

a. Swivel joint.
b. Actuating pump.
c. Selector valve.
d. Friction clutch.

A

D. Friction clutch…or rewind clutch

27
Q

What size pendant is typically used on operational installations of the BAK−12 arresting system?

a. 1⁄2 inch.
b. 3⁄4 inch.
c. 11⁄4-inch.
d. 11⁄2 inch.

A

C. 1 and 1/4

28
Q

What is the primary guidance in managing the inspection and maintenance program?

a. AFI 32–1043, complete with all MAJCOM and local supplements.
b. AFI 32−1043 only.
c. AFI 32−1062.
d. ETL 13−4.

A

a. AFI 32–1043, complete with all MAJCOM and local supplements.

29
Q

Which form is used to record historical maintenance data?

a. Effective Pendant Height.
b. AFTO Form 244.
c. AFTO Form 95.
d. Record of certification.

A

C. AFTO form 95

30
Q

Which type of energy absorber is used on the mobile aircraft arresting system (MAAS)?

a. Barrier arresting kit (BAK)–15.
b. BAK–12.
c. BAK–13.
d. BAK–14.

A

B. BAK-12

31
Q

What type of engine(s) are used on the hydraulic power units (HPU) located on the mobile aircraft arresting system (MAAS)?

a. Gasoline only
b. Diesel only.
c. Propane.
d. Gasoline and diesel.

A

D. Gasoline and Diesel

32
Q

Who has the lead role in selecting a site for the mobile aircraft arresting system (MAAS)?

a. Airfield manager.
b. Engineer assistant.
c. Electrical superintendent.
d. Power production NCOIC.

A

B. engineer assistant

33
Q

What minimum run out distance must be provided for installation of the mobile aircraft arresting system (MAAS)?

a. 990 feet.
b. 990 feet, plus aircraft length.
c. 1,200 feet.
d. 1,200 feet, plus aircraft length.

A

B. 9990 feet, plus aircraft length

34
Q

Which formula is used to determine where to position the mobile aircraft arresting system (MAAS) on the runway edge?

a. Pendant length.
b. Pendant length / 2
c. Pendant length + 15 feet.
d. (Pendant length + 15 feet)/2

A

D. (Pendant length + 15 feet)/2

35
Q

What is used to secure the mobile aircraft arresting system (MAAS) on a concrete runway for unidirectional arrestment capability?

a. Moil points.
b. Stake pockets.
c. Anchor plates.
d. KM stake lines.

A

C. Anchor plates

36
Q

Where should the four-axle trailer retaining pins on a mobile aircraft arresting system (MAAS) be stored once they have been removed?

a. In your pocket.
b. In the stake pockets.
c. In the front storage box.
d. In the pin storage compartment.

A

C. In the front storage box

37
Q

On the mobile aircraft arresting system (MAAS), what is used to ensure a 3/8 –inch clearance gap between the bolt head and anchor plate?

a. Ruler.
b. Flat washer.
c. Taper bolt gauge.
d. Long nosed pliers

A

C. Taper bolt gauge

38
Q

For soil installation of a unidirectional mobile aircraft arresting system (MAAS), 19 aluminum stakes are used to anchor the unit alongside a runway. Around the perimeter of the MAAS trailer, what are 10 of the stakes installed through?

a. Stake guide.
b. Anchor plate.
c. Stake spacers.
d. Stake pockets.

A

D. Stake pockets

39
Q

If you have an asphalt over concrete runway and want to use standard concrete installation procedures, how much asphalt are you allowed to chip away before installing a mobile aircraft arresting system (MAAS)?

a. Less than 1⁄2 inch.
b. More than 1⁄2 inch.
c. Less than 1 inch.
d. More than 1 inch.

A

C. Less than 1 inch

40
Q

How many months can the BAK−12 arresting system pendant be in service before replacement is required?

a. 20.
b. 36.
c. 40.
d. 48.

A

B. 36

41
Q

When do you turn the purchase tapes end for end on the BAK−12 arresting system?

a. Every 6 months.
b. Every 12 months.
c. Every 24 months.
d. Every 36 months.

A

C. Every 24 months

42
Q

Synchronize both of the hydraulic systems on a BAK−12 arresting system

a. weekly.
b. monthly.
c. every 3 months.
d. every 2 months.

A

c. Every 3 months

43
Q

What can be used to better understand diagnosing problems with the MAAS?

a. Diagnostics charts.
b. HPU manual.
c. Lubrication chart.
d. Troubleshooting chart

A

D. Troubleshooting chart

44
Q

Which of the following malfunctions would be noted by excessive aircraft rollback following a BAK−12 engagement?

a. Cam out of index.
b. Insufficient cable pre-tension.
c. Low fluid coupling oil level.
d. Uneven tape stack height.

A

A. Cam out of index

SKT Book 4 (2 decks)

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