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SKT Book 4 > B4U1 Emergency And Support Systems > Flashcards

B4U1 Emergency And Support Systems Flashcards

1
Q

List the components of an MA–1A arresting barrier.

A

Webbing assembly, deck hooks, arresting chains, main stanchions, intermediate stanchions, main control box, auxiliary control box, electrical system, compressed air system, and pendant assembly.

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2
Q

On the MA–1A arresting system, what is the purpose of the springs on the pendant assembly?

A

The springs allow the cable to yield as the aircraft runs over it.

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3
Q

What absorbs the kinetic energy of an aircraft as it engages an MA–1A chain arresting barrier?

A

Anchor chains resting in place parallel to the runway.

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4
Q

What is the safest minimum distance to stand away from an MA–1A during an engagement?

A

25 feet

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5
Q

What is the basic objective of the BAK–15 arresting system?

A

To remove the kinetic energy of the moving aircraft and to halt its forward motion in a controlled manner to save the pilot and crew.

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6
Q

What does each elementary net on the BAK–15 consist of?

A

A single upper horizontal strap and two independent lower horizontal straps.

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7
Q

What are anchor disks?

A

Small, flat devices that are fastened to the runway surface.

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8
Q

What is the mast assembly?

A

The mast assembly is the 23-foot post that holds the net in position in order to perform the arrestment.

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9
Q

What does the guy wire anchor support provide?

A

An anchoring point for the guy wire and net tensioning wire.

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10
Q

On the BAK–15, what does the hydraulic manifold do?

A

Directs hydraulic fluid, at high pressure, to operate the stanchion and provides a return path to the reservoir for the low-pressure fluid returning from the cylinders.

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11
Q

What happens when the stanchion has completed its travel, either up or down?

A

The appropriate limit switch interrupts the signals to the hydraulics, and the system shuts down.

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12
Q

What can the BAK–15 use as energy absorbers?

A

Anchor chains, BAK–12, or the textile modular brake.

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13
Q

What advantages can the textile brake system offer over other systems?

A

Maintenance free, performance flexibility, easy transportation, quick installation, and cost effectiveness.

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14
Q

What tensions the pendant?

A

Two Tirfor winches.

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15
Q

What does the braking module consist of?

A

Two tearing straps stitched together.

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16
Q

How many braking modules are in each single stage brake assembly?

A

Each braking stage unit has 10 braking modules on each side of the runway.

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17
Q

How is the pendant of the BAK–14 support system raised?

A

By torsion springs

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18
Q

What material is used in the construction of the BAK–14 support block?

A

An elastomeric material

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19
Q

What is provided to minimize the shock from oscillation of the support arm on the BAK–14 support system?

A

An up bumper

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20
Q

What is used to charge the pneumatic system when the valve is actuated on the BAK–14 system?

A

A three-way solenoid valve

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21
Q

Where is the primary control of the BAK–14 support system?

A

The control tower

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22
Q

What type of switch is used to monitor the raise/retract function on the BAK–14?

A

A mercury-type limit switch

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23
Q

What is provided to avoid checking a multitude of possibilities on the runway if a malfunction is indicated on the BAK–14 system?

A

A check circuit in the pit.

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24
Q

What are the two purposes of the BAK–14 heaters?

A

To keep the run of pneumatic tube and the operating cylinders from freezing if moisture is trapped in the pneumatic system; to keep the trough sections and drains free from ice.

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25
Q

List the four groups of heaters on the BAK–14.

A

(1) Box heaters.
(2) Trough heaters.
(3) End trough heaters.
(4) Cross-runway drain heaters.

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26
Q

What is the function of the drawback cable?

A

It pulls the support arm and support block back into the lowered position when the ramp moves to the low spot.

27
Q

How many blocks does the Type-H support system have?

A

14 blocks for runways up to 150 feet wide and

18 blocks for runways from 150 feet wide to 300 feet wide.

28
Q

How fast does the Type-H support system retract or raise the pendant?

A

1.5 seconds

29
Q

What are the three main components that make up a LWFB?

A

A beam and two sheaves

30
Q

How many stakes are required for a soil installation of a lightweight fairlead beam?

A

52 stakes per beam

31
Q

When can tape tracking be best observed?

A

During the monthly functional pullout

32
Q

What advantages does the MRES offer over the LWFB?

A

It can be installed on soil or concrete; it has an integrated trailer so it can be installed without the need of a forklift.

33
Q

How many stake pockets does each MRES assembly have?

A

32

34
Q

Which components of the MA–1A arresting barrier provide a certain amount of slack for the arresting cable?

a. Deck hooks.
b. Arresting chains.
c. Webbing assemblies.
d. Intermediate stanchions.

A

A. Deck hooks

35
Q

When an aircraft nose wheel engages the webbing on an MA−1A arresting barrier, this action triggers a steel cable to engage the aircraft’s

a. tail hook.
b. nose gear.
c. wing frame.
d. main landing gear

A

D. Main landing gear

36
Q

On the MA–1A arresting barrier compressor, what is the normal air pressure stored in the accumulators?

a. 1,200 per square inch (psi).
b. 1,500 psi.
c. 1,800 psi.
d. 2,100 psi.

A

B. 1,500 psi.

37
Q

Where is the E–5 unidirectional barrier typically installed on the runway?

a. On the overrun.
b. At midfield.
c. At the 1200 foot mark.
d. At the 5000 foot mark.

A

A. On the overrun.

38
Q

When an aircraft engages the pendant on an E−5 arresting system, tension increases rapidly and causes the

a. webbing to break.
b. shear pins to break.
c. anchor chains to break.
d. arresting cable to engage the main gear of the aircraft.

A

B. Shear pins to break

39
Q

To avoid obstructing landing aircraft, the BAK−15 arresting system can lower the net in about

a. one second.
b. three seconds.
c. five seconds.
d. fifteen seconds.

A

B. Three seconds

40
Q

On a BAK−15 arresting system, what holds the net upright and centered on the runway in its arrestment position?

a. Anchor plates.
b. Anchor straps.
c. Shock absorbers.
d. Suspension system

A

D. Suspension system

41
Q

What component of a BAK−15 arresting system holds the bottom of the net in place on the runway?

a. Anchor plates.
b. Anchor straps.
c. Shock absorbers.
d. Suspension system.

A

B. Anchor straps

42
Q

What is the 23-foot post that holds the net in position in order to perform the arrestment on a BAK−15?

a. Anchor plates.
b. Anchor straps.
c. Mast assembly.
d. Suspension straps.

A

C. Mast assembly

43
Q

On a BAK−15, what is used to tighten or loosen the net tensioning wire, thus determining the height of the net during an arrestment?

a. Backstop clutch.
b. Lever chain hoist.
c. Tensioning spring.
d. Elementary net.

A

B. Lever chain hoist

44
Q

When the BAK−15 stanchions are elevated, they are held securely in the upright position by the

a. limit switch disconnect system.
b. cable support centering system.
c. guy wire anchor support system.
d. over-center locking arm mechanism.

A

D. Over-center locking arm mechanism

45
Q

To prevent damage to the equipment when it is in the fully raised and fully lowered positions, the BAK−15 stanchion system is fitted with

a. limit switches.
b. circuit breakers.
c. locking mechanisms.
d. rubber support disks.

A

A. Limit Switches

46
Q

When an aircraft engages the BAK−15 arresting system, what causes the net to release from the stanchions?

a. Tear away straps.
b. Shear link devices.
c. Photo electric sensors.
d. Laser disconnect system.

A

B. Shear link devices

47
Q

What is one of the many advantages the textile brake system offers?

a. Less energy absorption than other systems.
b. Detailed hydraulic system.
c. Heavy anchoring system.
d. Easy transportation.

A

D. Easy transportation

48
Q

What size is the pendant on a textile brake system?

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

A

C. 1 1/4

49
Q

What protects the yoke on a textile brake system?

a. Shear links.
b. Retainer nut.
c. Neoprene cover.
d. Short connecting straps.

A

C. Neoprene cover

50
Q

When an aircraft engages the textile brake arresting system, the kinetic energy of the aircraft is absorbed when the

a. stanchions are activated.
b. two tearing straps separate.
c. arresting chain is laid out on the runway.
d. steel cable engages the main landing gear.

A

B. Two tearing straps separate.

51
Q

In a bidirectional configuration of the textile brake arresting system, how many braking modules are on each side of the braking stage unit?

a. 2.
b. 5.
c. 7.
d. 10.

A

D. 10

52
Q

How many rubber support blocks does the BAK−14 system have for supporting the pendant two inches above the runway surface?

a. Either 3 or 9.
b. Either 7 or 10.
c. Either 14 or 20.
d. Either 20 or 32.

A

C. Either 14 or 20

53
Q

How does the BAK−14 support system pendant retract into the runway trough?

a. Pneumatic system.
b. Hydraulic control.
c. Torsion springs.
d. Manual control.

A

A. Pneumatic System

54
Q

Which component of the BAK−14 support system aids in venting the pneumatic system?

a. Control switch.
b. Quick-exhaust valve.
c. Manual override valve.
d. Three-way solenoid switch.

A

B. Quick-exhaust valve

55
Q

What is the purpose of the box heater in a BAK−14 support system?

a. Keep the arresting support system at a constant temperature of 50o.
b. Protect the trough sections from freezing moisture.
c. Protect the air cylinder from freezing moisture.
d. Defrost the support box system if it freezes.

A

C. Protect the air cylinder from freezing moisture.

56
Q

What houses the hydraulic power unit, sump pump, electrical panel, and heating resistors on a Type-H support system?

a. Retraction module.
b. Motor drive pit.
c. Precast manhole.
d. Trough assembly.

A

B. Motor Drive pit.

57
Q

What is the function of the electric motor in the Type-H support system’s motor drive unit?

a. Move the pendant up and down.
b. Operate the heaters in the pit and trough.
c. Create the back-and-forth movement of the ramps.
d. Drive the hydraulic fluid from the reservoir to the jack.

A

d. Drive the hydraulic fluid from the reservoir to the jack.

58
Q

In a Type-H support system, which component pulls the support arm and support block back into the lowered position when the ramp moves to the low spot?

a. Torsion spring.
b. Air compressor.
c. Drawback cable.
d. Mechanical lever.

A

C. Drawback Cable

59
Q

What controls the heaters in a Type-H support system?

a. Thermostats.
b. Field cabinet.
c. Limit switches.
d. Remote sensors.

A

A. Thermostats

60
Q

If a Type-H support system is installed correctly, the support blocks will be approximately how many feet apart?

a. Two.
b. Five.
c. Eight.
d. Twelve.

A

C. Eight

61
Q

How fast does the Type-H support system retract or raise the pendant?

a. .75 second.
b. 1.5 seconds.
c. 2.5 seconds.
d. 5 seconds.

A

B. 1.5 seconds

62
Q

How far are purchase tapes rotated in the clockwise (CW) direction before the tape is inserted into the rear sheaves of the lightweight fairlead beam (LWFB)?

a. 45 degrees.
b. 90 degrees.
c. 120 degrees.
d. 180 degrees.

A

B. 90 Degrees

63
Q

What is the total number of stakes needed to install the lightweight fairlead beam (LFWB) in soil?

a. 26.
b. 32.
c. 42.
d. 52.

A

D. 52

64
Q

What is the desired reading on the manta ray load locker assembly when testing for security?

a. 9,000 pounds.
b. 10,000 pounds.
c. 11,000 pounds.
d. 12,000 pounds.

A

B. 10,000 pounds

SKT Book 4 (2 decks)

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