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REVOL NROP > Ruof > Flashcards

Ruof Flashcards

1
Q

Why does the E-5 barrier require the use of pretensioning springs?

A

To allow aircraft to cross the pendant cable without shearing the pins

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2
Q

What effect does burying the arresting chain have on the performance
of the E-5 barrier?

A

No effect

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3
Q

When can additional shots, weights or both be added to the standard configuration of an E-5 barrier?

A

If the aircraft weighs over 20,000 pounds

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4
Q

Why is the E-5 barrier only used in the over run?

A

Due to the extensive amount of time it takes to reset the barrier

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5
Q

Which statement below provides one of the reasons for the installation of a BAK-14?

A

To avoid damage to the cable from heavy aircraft

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6
Q

What purpose does the support box heater element serve on the BAK-14?

A

To keep the air cylinder and other mechanical parts from freezing

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7
Q

When do the compression springs push on the toggle links?

A

When the air pressure is removed from the air cylinder

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8
Q

For which configuration of the BAK-14 would 20 support boxes be installed?

A

Runways with a width of 200’ or 300’

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9
Q

Which of these will be accomplished on a daily inspection?

A

Verify system air pressure

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10
Q

At what inspection interval should the air filter and silencer be cleaned?

A

Semi-annually

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11
Q

When should the guide rods be lubricated?

A

Monthly

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12
Q

When should the trough assemblies, hand hole, and pull box be inspected?

A

Daily

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13
Q

For what purpose does the test strap assembly get removed periodically?

A

Strength testing.

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14
Q

Which component gets installed when tail hook equipped aircraft utilize the airfield?

A

Net Interconnect

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15
Q

Why is the BAK-15 considered an emergency barrier and only installed
in the overrun?

A

Due to of long reset times and high cost of component replacement

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16
Q

Which of the following is the proper configuration for tail hook equipped aircraft?

A

Net, Stanchion, Energy Absorber, Pendant Cable, Interconnect and Pretension Assembly

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17
Q

What assembly is checked for centerline, elevation and alignment during a daily inspection?

A

Net Assembly

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18
Q

Why do you verify the SAFE/ARM switch is in the ARM position during a daily inspection?

A

To ensure the Tower can raise the stanchion system as required

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19
Q

Why should care be taken around pressurized hydraulic systems or cables under tension?

A

Because severe injury to body can occur

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20
Q

During the monthly inspection the stanchion hydraulic components are inspected for?

A

Leaks

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21
Q

What component separates the tensioning assembly from the braking assembly during an arrestment?

A

Shear link

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22
Q

The Textile Brake arresting system uses a _____ inch pendant cable.

A

1 1/4 inch

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23
Q

How many brake modules are used for each stage when configured for uni-directional?

A

9

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24
Q

What happens if the aircraft exceeds the capacity of stage 1 of a textile brake system?

A

Stage 2 will engage absorbing the kinetic energy

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25
Q

When support discs are properly spaced, what should the effective pendant height be?

A

2 1/2 inches above the runway surface

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26
Q

How must the yokes be positioned when ensuring proper pendant tension?

A

Equal distances from the runway centerline

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27
Q

Which inspection item will be performed on an annual basis?

A

Verify the torque of the anchor bolts

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28
Q

If obstacles in the area are swept by the straps, what could occur?

A

Prohibit proper kinetic energy absorption

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29
Q

What is the main function of the electric motor on the Type-H cable support system?

A

Drive the hydraulic drive unit to either push or pull the mechanical transmission assembly

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30
Q

What signals the system is fully raised or retracted and causes the electric motor to be de-energized?

A

Limit switches

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31
Q

In order to raise the ramps on the Type-H system, what rotates in the opposite direction?

A

Electric motor

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32
Q

In the event of a power failure, the ability to raise and lower the pendant cable is achieved by?

A

Manual hand pump

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33
Q

The Type-H cable support system can be adapted to use which size pendant cable?

A

1”

34
Q

How many support blocks are in the standard configuration of the Type-H?

A

14

35
Q

Why can the Type-H be configured with any cable energy absorber?

A

Because its purpose is to solely raise or lower the pendant cable

36
Q

Which is an optional runway spacing configuration of the Type-H?

A

150-300ft

37
Q

When performing a daily inspection requirement, a technician would?

A

Check the condition of the support blocks

38
Q

When the Type-H reaches 10 years in service, which of the following maintenance actions is a requirement?

A

Complete overhaul of the system

39
Q

During which maintenance interval is the transmission loop tension checked?

A

Monthly

40
Q

When checking the hydraulic fluid in a monthly inspection, a drop of _____ with respect to maximum highest level indicates an external
leak.

A

3/8

41
Q

What effect does the cam control valve have on the brakes during arrestment of an aircraft?

A

Restricts hydraulic fluid flow increasing pressure

42
Q

What happens when the shuttle valve is placed in the ON position?

A

Applies static pressure to the brakes

43
Q

If hydraulic fluid pressure increases inside the shuttle valve, which of the following will occur?

A

The valve moves to the OFF position

44
Q

If hydraulic system pressure exceeds the safe maximum valve during an arrestment, what will occur?

A

The pressure relief valve opens, relieving excess pressure

45
Q

The purpose of the tape deflector sheaves in a permanent install is to

A

To bring the purchase tape to the higher level of the fairlead tube

46
Q

In an expeditionary install the energy absorber and fairlead beam are anchored to a(n)

A

Deadman assembled on site

47
Q

If the installation of the BAK-12 is going to last over a year then,

A

The energy absorber can use either permanent or semi-Permanent

48
Q

When determining configuration of the BAK-12, which of the following factors is taken into consideration?

A

Aircraft types

49
Q

When performing a daily inspection, what check must be completed?

A

Inspect cam for proper index setting

50
Q

During a weekly inspection, what should the tape connector be inspected for?

A

Correct reeving and security of hardware

51
Q

What is required when a BAK-12 reaches its 10 year mark?

A

Complete overhaul

52
Q

After an arrestment, what must the tape be inspected for?

A

Correct twist inside fairlead tube assembly

53
Q

The use of a 66 inch purchase tape storage reel on the MAAS allows for what capability?

A

Enables a 990 foot runout

54
Q

Why does a MAAS set come with a 90 foot and 153 foot pendant cable?

A

To support different runway widths

55
Q

In the event of an accidental vehicle separation, what MAAS component activates the hydraulic braking system?

A

Emergency brake system

56
Q

What allows the use of wide bodied aircraft on runways with a MAAS installed?

A

Setback kits and additional equipment

57
Q

During site planning for the MAAS, if the soils fall below a 7 CBR value what else is planned?

A

The installation of a deadman

58
Q

If the plan is to install the MAAS on prepared foundations then it must meet the standards of which organization?

A

American Society for Testing and Materials

59
Q

During installation planning for the MAAS the site should permit usable portion of the runway in the event of a(n)?

A

Emergency

60
Q

During site planning for the MAAS what dictates site location?

A

Operational need

61
Q

Which MAAS uni-directional installation requires the removal of a tire?

A

Concrete

62
Q

In order to install the MAAS bi-directionally on concrete, install three anchor plates and?

A

Remove two tires - one from each MAAS

63
Q

During the soil uni-directional installation of the MAAS how is the position of the trailer determined?

A

Cable length + 15

64
Q

When installing the earth anchor stakes which degree must be maintained for a uni-directional installation?

A

15 degrees

65
Q

During monthly inspection of the MAAS for what reason are the sheaves inspected for freedom of rotation?

A

Because friction will cause damage to the tapes

66
Q

During the daily inspection the drive chains are inspected for

A

Cleanliness and lubrication

67
Q

Why inspect the cam for the proper 15° setting during the daily inspection of the MAAS?

A

Improperly set cam may not stop the aircraft in time

68
Q

When performing preventative maintenance on the MAAS the tape gets cropped every?

A

6 months

69
Q

The centerline of the lightweight fairlead beam sheaves should project at least 1 foot above the runway because?

A

The runway surface will interfere with the tape path

70
Q

The acceptable California Bearing Ratio for installing the lightweight fairlead beam is?

A

7

71
Q

Why can the ground slope not exceed 8% when installing the lightweight fairlead beam?

A

Because tape tracking problems with the sheaves will occur

72
Q

The installation site for the lightweight fairlead beam should be relatively flat and extend even on both sides to

A

Keep grading to a minimum

73
Q

When performing an on-runway installation a minimum of ____ feet of touchdown space must be provided?

A

500

74
Q

The slope of the ground should not exceed ____ percent between the MAAS and the MRES during site selection.

A

8

75
Q

Why must tape stack height be taken into account when selecting a site for the MRES?

A

Because insufficient runout could be a possible danger to the aircraft

76
Q

Why must the centerline of the runway sheaves project above the
surface of the runway?

A

To protect the tapes from damage during arrestment

77
Q

During a daily MRES inspection, the front and rear sheave weldments will be checked for?

A

Burrs and sharp edges

78
Q

During a monthly MRES inspection, what should the brake lines and fittings be inspected for what?

A

Leaks

79
Q

When the MRES is in storage which of the following periodic inspections is performed?

A

Semi-annual

80
Q

How often are the wheel bearings lubricated on the MRES?

A

Every 365 days

REVOL NROP (4 decks)

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