2a551 Random Questions

1. If a basic postflight inspection is not required, the thru-flight inspection is normall performed

Prior to an aircraft going on alert and again before a flight after completion of the alert period

After flights when a turn-around sortie or a continuation flight is scheduled

Immediately prior to a basic post flight inspection

After the last flight of a specified flying period.

2. Responsibility for accomplishg the -1 preflight check rests with the

Aircrew

Ground crew

Operations personnel

Maintenance supervision.

3. Atomospheric pressure at sea level is

14.7 pounds per square inch (psi)

17.4 psi

29.92 psi

29.29 psi

4. Which condition is most likely to cause aircraft damage

Tornadoes

Hurricanes

Sudden local storms

Predicted heavy storms

5. When the pressure in a T-handle liquid fire extinguisher container becomes too low,

The check valve will open

The check valve will close

The pressure switch will open

A light on the cockpit panel will glow

6. Split wheels are balanced

During building

As an assembly

Individually by halves

By a self-balancing system.

7. The model 4000 engine trailer can support a maximum load of

7,000 pounds.

8,000 pounds.

9,000 pounds.

10,000 pounds.

8. When must hte AFTO form 781 be removed from the forms binder?

Before each thruflight

Before the first flight of the day.

After each maintenance action with an assigned job control number.

After the IMDS CDB event number is entered at maintenance debriefing.

9. Allowing normal operating speed of a hydraulic actuator in one direction while limiting speed in the other direction is done by the

Automatic check valve

Restrictor check valve

Bypass valve

Relief valve

10. The air-conditioning in a cargo aircrat uses a diverter valve to diver air to

The cooling turbine

The water separator

The flight station gaspers

Flight station and cargo compartments

11. Movement about the vertical axis is called

Roll

Pitch

Crab

Yaw

12. The action of the outflow valve in a fixed-isobaric, single-differential pressurization system is controlled by

A jet pump

Filtering cabin air

The unpressurized range

Regulating control chamber pressure

13. What type of responsibility is assumed by an individual who has acquired physical possession of government property?

Personal

Custodial

Command

Supervisory

14. The reference locations, which are in the vertical direction measured fro ma reference datum that is usually well below the aircraft, are called.

Buttlines

Waterlines

Buttock stations

Fuselage stations

15. During crash recovery, what method of aircraft hoisting is confined to emergencies when no other method is available?

Cribbing

Lifting bags

Crane hoisting

Aircraft jacking

16. To use .032 gauge safety wire properly, there should be how many turns per inch?

7-12

8-10

8-12

10-13

17. Electrons can be released from thier outer orbit by all of the following forces except

Heat

Cold

Chemical action

Changing magnetic field

18. An aircraft tires maximum recommended static load is calle the

Ply rating

Serial number

Service rating

Manufactured wear limit

19. Air trapped in a liquid coolant system (LCS)

Causes a low-pressure condition

Activates the filter delta pressure switch

Forces the thermal modulating valve closed

Reduces the cooling capability of the coolant.

20. The primary purpose of the air pressure regulator in a fuel system is to

Indicate the manifold pressure

Open the vent vales during a climb or dive

Actuate a micro switch and turn the air flow light on

Control the amount of pressure entering the tank

21. Engines overhauled by depot are covered against defects in workmanship for the first

100 hours of operation or six months from the date of receipt

100 hours of operation or one year from the date of receipt

200 hours of operation or six months from the date of receipt

200 hours of operation or one month from the date of receipt

22. To check the engagement of a push-pull rod end, you would

Use a depth gauge to check end play

Ensure not lateral movement exists

Use an inside caliper to check the rod end bearing

Insert a piece of safety wire into the hole in the end of the terminal

23. Hydraulic manifolds are used in a hydraulic system to provide a location where the

Return lines can join together

Pressure lines can join together

Common fluid lines can come together

Hydraulic test stand can be connected

24. A cracked radom could cause

Antenna oscillation

Dielectric increase

Microwave distortion

Electron deterioration

25. The shock strut component that controls the rate of fluid flow through the orifice is the

Check valve

Bypass valve

Metering pin

Flow transmitter

26. The underspeed switch on the 60/80 kilovolt ampere generator constant speed drive actuates at

325hz

345hz

365hz

395hz

27. One common type of variable-area orifice used on augmenters is the

Flap

Segmented

Segmented flap

Segmented nozzle

28. The purpose of debooster is to

Decrease fluid volume

Reduce breaking pressure

Enlarge running clearance

Increase braking pressure

29. The F-2 lifting bag is designed to lift

22,000 pounds to a maximum height of 6 feet

22,000 pounds to a maximum height of 8 feet

24,000 pounds to a maximum height of 6 feet

24,000 pounds to a maximum height of 8 feet

30. The nickel-cadmium battery

Cells are not replaceable

Is not subject to thermal runaway

Service life is short and its subject to thermal runaway

Electrolyte will appear to be low when the cells are partially discharged

31. The hamilton stnadard 54h60-91 propeller is a

Three-bladed, reversible-pitch propeller; 13.5 in diameter

Three-bladed, reversible-pitch propeller; 15.5 in diameter

Four-bladed, reversible-pitch propeller; 13.5 in diameter

Four-bladed, reversible-pitch propeller; 15.5 in diameter

32. The major advantage of the manual slide-type hydraulic selector valve is its

Damping ability

Metering ability

Capability to allow system pressure to build

Capability to relieve excess system pressure

33. To issue an item of equipment for a short specified period use the

AF form 2005

AF form 2413

AF form 1297

DD form 1348-6

34. Publicationsare listed in AFIND2 in a

Logical sequence

Numerical sequence

Alphabetical sequence

Alphanumeric sequence

35. The chracteristic of the fluid used in a liquid coolant system that makes it suitable as a coolant for electronic components is its.

Viscosity

Resistance

Metallic content

Nonconductance

36. Aircraft engine temperature and pressure as it applies to the bleed air system is determined by the

Ambient pressure and ambient temperature

Engine throttle setting and ambient altitude

Ambient pressure and engine throttle setting

Engine throttle setting and ambient temperature

37. The base critical items list is maintained by

The critical item monitor and the Chief of Supply

Personnel in the MAJCOMs and Base Supply

Personnel in the MAJCOMs and MSL

Personnel in Base Supply in coordination with MSL

38. The effective range of a fully charged handheld fire extinguisher is

5 feet

10 feet

15 feet

20 feet

39. The motion of the landing gear control lever is transmitted to the selector valve by

Control cams

By push-pull rods

By a cable system

Through hydraulic pressure

40. The H-1 heater has an adjustable heat output that ranges from

100f to 230F

115F to 250F

125F to 270F

150F to 280F

41. The maximum circuit resistance within a thermocouple circuit is

5 ohms

50 ohms

500 ohms

Infinity

42. A commander assures that property is receiving proper care and is being properly safeguarded by

By a report of survey

Inspecting the property on turn-in

Making frequent visits to base activities

Obtaining written reports from supervisors

43. The purpose of the pneumatic relay in a cabin pressurization system is to

Control the venting of cabin pressure

Control the reference chamber pressure

Ensure both outflow vales operate at the same time

Ensure the aneroid and diaphragm inlet ports remain open

44. Liquid oxygen converts to gaseous oxygen at an expansion ratio of

600 to 1

680 to 1

800 to 1

860 to 1

45. An H-2 emergency assembly (bailout bottle) supplies oxygen to the user for a maximum of about

5 minutes

10 minutes

15 minutes

20 minutes

46. The manual control valve in the variable isobaric pressurization system is used as an alternate when the

Safety valve fails

Outflow valve fails

Pneumatic relay fails

Cabin pressure controller fails

47. What form is used to report accomplishment of TCTO

DD form 1348-6

AFTO form 349

AF form 2413

AF form 2005

48. The difference between a selector valve and a servo valve is the

Selector valve has four ports

Selector valve is more complex

Servo valve will control fluid-flow

Servo valve is electrically operated

49. The usable pressure range, as measured in pounds per square inch (psi), of the MC-1A air compressor is

0-300

0-350

0-3,200

05-3,500

50. Red margins and letters are used to allow you to easily identify the DD form

1574 and DD form 1574-1

1575 and DD form 1575-1

1576 and DD form 1576-1

1577 and DD form 1577-1

51. Green margins and letters are used to allow you to easily identify the DD form

1577-2 and 1577-3

1576 and DD Form 1576-1

1574 and DD Form 1574-1

1575 and DD Form 1575-1

52. To report quality deficiences atrributed to errors in workmanship, use a Category

I DR

II DR

III DR

IV DR

53. Critical items are generally small numbers of items that cause the largest number of

Mission delays

On-time takeoffs

NRTS conditions

NMCS conditions

54. The direct current volatage supplies to the lights in a photoelectric circuit is pulsed at a rate of

10Hz

100Hz

200Hz

400Hz

55. The maintenance activities that have the option to develop and maintain quick reference lists are those with how many or more aircraft of the same mission, design, and series

Three

Six

Nine

Twelve

56. The two types of brinelling are

True and false

Passive and active

Neutral and natural

Negative and positive

57. The kinds of pitting that affects bearings are

Segmented and peel

Corrosive and segmented

Corrosive and mechanical

Mechanical and segmented

58. The term ply rating refers to

Maximum allowable tire speed

Number of reinforcement cords

Number of cord plies in a tire

Index of tire casing strength

59. The MC-2a air compressor is capable of delivering air at a maximum pressure, measure in pounds per square inch (psi) of

200

300

3,500

3,600

60. The stationary, skid mounted power unit htat produces aircraft electrical power for use in shops and hangars is the

A/M32A-95

MK-3A

MD-4

MB-2

61. In a molecular sieve oxygen generating system, water droplets from the air are removed by an

Water separator

Molecular sieve bed

MSOGS shutoff valve

MSOGS concentrator inlet filter

62. If the temperature of the bleed air from a cargo-type air conditioning system's primary heat exhcanger exceeds 540F, the high limit section of the temperature anticipator will

Open the ram air valve

Turn on a warning light

Close the primary heat exchanger ejector valve

Close the bleed air regulating and shut off valve

63. The type of flight control system that allows the pilot to control the aircraft if hydraulic pressure is lost is

Boost

Manual

Powered

Differential pressure

64. In a direct current, liquid level fuel indicating system, the wiper contact is positioned on the resistance strip by

Signals from the amplifier

The movement of a float in the tanks

Voltage changes in the indicator circuit

The amount of pressure entering the fuel tank

2A551 Random Questions