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CDC's Volume 1 > Volume 1, Unit 6 > Flashcards

Volume 1, Unit 6 Flashcards

0
Q

Why is it important to have a clean container to catch the oil when checking the main oil filter for contamination?

A

A dirty container could give a false indication of contamination

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1
Q

When engine is sent to the engine shop with a new discrepancy, what should you do before you begin corrective action?

A

First review the aircraft and engine forms; second perform a FOD check of the compressor section; and third remove the main oil filter and inspect for oil contamination

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2
Q

Why should a preliminary inspection of the engine be performed prior to correcting a known discrepancy?

A

To ensure an unknown discrepancy doesn’t slip by while the engine is undergoing maintenance for a known discrepancy

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3
Q

What are possible consequences of a dirty work area?

A

Contamination and subsequent engine failures

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4
Q

How are hints on maintenance procedures highlighted in maintenance manuals?

A

In the form of captions such as notes, cautions, and warnings

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5
Q

Why should you never stack engine parts with precision finishes on concrete floors?

A

Marring and nicking would lead to Cracks in the metal and leaks of exhaust gases during engine operation

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6
Q

Before you prepare an engine for air shipment, what precaution do you take for engine fuel&oil systems?

A

Make sure all residual fluids are drained from the engine lubricating and fuel system

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7
Q

What precautions should be taken during air shipment of engines attached to trailers, trucks, stands, or in containers?

A

Properly torque bolts, Screws, and nuts used in securing engines and provide them with approved locking device. Also, check in the pneumatic tires for condition and proper inflation

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8
Q

What is the most common shipping container for components?

A

Cardboard box

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9
Q

A flexible environmental container can be used for what type of shipment?

A

Air and surface transportation

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10
Q

What type of cover is opened by using a zipper?

A

A prefabricated cover

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11
Q

Which manual covers reporting an engine that was improperly shipped?

A

AFMAN 24–204

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12
Q

What types of inspections are performed on engines after they’re involved mishaps or dropped?

A

Visual inspections and tests cell functional test

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13
Q

If an engine was dropped en route and an inspection revealed only minor damage to the engine, which level of maintenance would do the repair work?

A

Intermediate maintenance shop

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14
Q

How is dehydration accomplished in a metal shipping container?

A

By installation of predetermined amounts of bagged dehydrating agent and by pressurizing with dry nitrogen

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15
Q

How does the flexible environmental container differ from metal containers?

A

They do not provide mechanical and physical protection and are used in conjunction with transportation trailers and adapters

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16
Q

Empty storage and shipping containers should be pressurized to what pressure?

A

5+ or -1 pounds per square inch gauge

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17
Q

What warning is found in all engine module storage and shipping containers?

A

Caution: release pressure before opening container

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18
Q

Where is the filler valve located?

A

On the front end of the container

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19
Q

What could happen if you remove the lid from a storage and shipping container without releasing the internal pressure?

A

Damage to the container or injury to the workers

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20
Q

What direction are the turn-lock fasteners turned when removing the lid?

A

Counterclockwise

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21
Q

After the lid is removed from the container, where should be placed?

A

On wooden blocks

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22
Q

Which end of the engine is placed over the front of the container?

A

Aft end

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23
Q

What is the purpose of the wire basket located in the bottom half of the shipping container?

A

It holds the desiccant

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24
Q

Why is the serial number on both halves of the shipping container particularly important?

A

Both halved of the container must be kept together since they are matched set

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25
Q

What markings are used on shipping containers?

A

Engine model number, engine serial number, preservation data and activity, represervation date and activity, engine status, date, and activity, type, model, manufacturer, and serial number of the container, gross weight, net engine weight, length, height, width, and cube of the container

26
Q

What must you do before loosening the adjusting screws?

A

Release all pressure from the container

27
Q

What secures an F100 core modules front and rear adapters to the container support?

A

4 pins

28
Q

What preservation treatment is required for engines that will not be operated for 48 hours?

A

Seal the intake, exhaust, drain and all air vent openings

29
Q

The fluid is used to preserve the oil system for extended periods of engine idleness?

A

Normal engine oil

30
Q

What type of fluid is used in the preservation of the fuel system?

A

MIL–L–6081 (grade 1010) oil

31
Q

What is the general engine depreservation procedure?

A

Service the oil reservoir, flush the system with fuel, and perform the ground check run to determine the operating condition of the engine

32
Q

What are the depreservation steps for a fuel system?

A

Flush the system with fuel by rotating the engine rotor and energizing the main fuel system. Then, Drain and clean the fuel filters

33
Q

What are the two types of corrosion?

A

Chemical and electrochemical

34
Q

Where does chemical corrosion start?

A

It starts on the surface of the metal exposed to the corrosive environment

35
Q

What is the corrosion product of iron alloys?

A

Red iron rust

36
Q

What is electrochemical corrosion?

A

Is when two dissimilar metals are connected by an electrolyte

37
Q

Two basic methods of corrosion prevention?

A

Oil like protective coating and the use of desiccants

38
Q

What TO gives the procedures for cleaning a jet engine?

A

TO 2J–1–13

39
Q

How are internal salt deposits removed from the engines?

A

By spraying clean fresh water into the inlet of the engine during coast down

40
Q

What is the purpose of maintenance platforms?

A

Provide a working platform at various heights

41
Q

What are the normal parts of the stand?

A

Base assembly, platform assembly, and a hydraulic system

42
Q

What is the purpose of the safety lock pins that are installed in maintenance platforms?

A

Prevent the platform from lowering while in use

43
Q

What are the five commonly used maintenance platforms?

A

C1, B1, B2, B4, and B5

44
Q

Which of the maintenance platforms is nonadjustable?

A

C1

45
Q

What prevents movement of the B4 maintenance stand while in use?

A

Wheel brakes

46
Q

What is the height range for each of the five maintenance platforms?

A

C1, 4 feet; B1, 3 to 10 feet; B2, 13 to 20 feet; B4, 3 to 7 feet; and B5, 7 to 12 feet

47
Q

What is the purpose of a AFTO form 244?

A

It provides a means to document equipment delayed discrepancies and corrective actions, record service, periodic and special inspections, record inspection status, and historical data

48
Q

What is the purpose of AFTO form 245?

A

Is it published as a continuation form for part V of AFTO Form 244

49
Q

When you receive an engine in your shop, you should check the applicable forms and then

A

Check the compressor inlet for signs of FOD

50
Q

When disassembling the oil filter, why should you always use a clean container?

A

To prevent false contaminant indications

51
Q

What is used to seal male flared-type fuel drain fittings on an engine being prepared for air shipment?

A

Caps

52
Q

To release the internal air pressure in a shipping container/module, you must remove

A

The filler valve on the front end of the container

53
Q

What color is a serviceable humidity indicator on a shipping container?

A

Blue

54
Q

What should you use to check for pressure leaks on an engine/module shipping container?

A

A soap-water solution

55
Q

To determine whether an engine stored in the shipping container is serviceable unrepairable, look on the

A

Top half on the right panel of the container

56
Q

Prior to removing a shipping container lid, what warning must be observed?

A

Release all pressure before removing

57
Q

How many pins secure the adapters to the shipping container support?

A

Four

58
Q

Engines inactive for over 180 days must have accomplished?

A

Preservation run and fuel system preservation

59
Q

To prepare the engine fuel system for service after depreservation, you must flush the system with

A

Fuel

60
Q

When can you consider a depreserved engine ready for service?

A

Only after a ground check run of the engine has been performed

61
Q

When metal is attacked by chemical corrosion, it will start

A

On the surface of the metal

62
Q

On the personnel maintenance platforms, the purpose of the platform safety lockpins is to

A

Prevent the platform from lowering while it is in use

63
Q

Which part of the Air Force technical order form 244, industrial/support equipment record, may they AFTO form 254, industrial/support equipment record (Continuation Sheet), be used for?

A

V

CDC's Volume 1 (6 decks)

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