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Hangar Maintenance 2 > Project 2 > Flashcards

Project 2 Flashcards

1
Q

What is meant by the term System Isolation and how is it accomplished?

A

Locking out particular system such as electrical, securing that switch or system in a way so it cannot be inadvertently actuated and placarding to communicate.

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2
Q

What type of fire extinguisher is used with the Carburetor Re & Re? Where should it be located?

A

Class B flammable liquids

Should be close as possible in the working area (across the hangar is too far away)

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3
Q

How do you ensure there will be no electrical shorts that could lead to a fire?

A
  • Disconnect the battery
  • Placard both battery and ground power
  • Pull all circuit breakers for associated systems
  • Clip or lock them out and placard
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4
Q

List general safety precautions for Fuel Control system re & re.

A
  • Fuel systems shut off and placarded
  • lines all capped to prevent contamination and leakage
  • label all items removed for location
  • position/clock angle of fittings for installation
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5
Q

What are the references for the removal and installation of the Carburetor on the Lycoming O-320-H engine normally installed on a Cessna 172N aircraft.).

A

Aircraft manual, Overhaul manual etc………

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6
Q

If there is a difference between limits for a specific task in the Cessna and the Lycoming manuals, which limit is used?

A

The Cessna manual as the aircraft manual takes precedence.

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7
Q

Why is a pre-removal inspection carried out?

A

In order to determine if there are any issues so that they can be rectified while the component is at the repair facility not once it returns.

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8
Q

What items are inspected during the pre-removal inspection?

A

-The carburetor and the attaching parts for condition
the controls for fit
-Form and function
-The fluid lines for condition, leakage
-Age and installation
-Induction airbox and its various attachments for condition and security.

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9
Q

What are the procedures used to remove the Carburetor and prepare it for shipment for Overhaul?

A

-carried out

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10
Q

What are the installing P/N’s for the Carburetor from the Cessna & Lycoming IPC’s? What is the installation torque for the nuts installed?

A

?

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11
Q

What standards of airworthiness must be carried out that are applicable to this task in accordance with Standard 571.10 “types of Work Table”

A

?

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12
Q

What items are inspected during the completion of the rigging and dual inspection?

A

?

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13
Q

Who can sign the dual inspection? How is it carries out?

A

?

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14
Q

What are typical faults found in induction systems?

A

?

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15
Q

What is inspected when examining engine hoses?

A

?

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16
Q

How do you tell the age of an engine hose

A

?

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17
Q

What is the make and model number of the engine used for the project?

A

?

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18
Q

What two disadvantages of using carburetors does a fuel injection system address?

A

?

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19
Q

What is meant by the term System Isolation and how is it accomplished?

A

?

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20
Q

What type of fire extinguisher is used with the Carburetor Re & Re? Where should it be located?

A

?

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21
Q

How do you ensure there will be no electrical shorts that could lead to a fire?

A

?

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22
Q

List general safety precautions for Fuel Control system re & re.

A

?

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23
Q

a) What are the main components in the injector pump?

A

?

24
Q

b) What is the purpose of the bypass valve?

A

?

25
Q

c) How are fuel vapors removed from the pump and where are they routed?

A

?

26
Q

d) What is the purpose of the relief valve?

A

?

27
Q

e) What is the function of the variable orifice?

A

?

28
Q

f) What are the two maintenance adjustments on the pump assembly and where are they located?

A

?

29
Q

g) What is the purpose of the bellows assembly on turbocharged engines?

A

?

30
Q

a) What are the two cockpit control inputs to the fuel/air control unit; identify what components receive these inputs

A

?

31
Q

b) Where is the excess fuel from the mixture valve routed?

A

?

32
Q

What are 2 common additional names for the fuel manifold valve?

A

?

33
Q

b) What is the purpose of the manifold valve?

A

?

34
Q

c) What internal component is controlled by the diaphragm?

A

?

35
Q

d) How is a positive fuel shutoff achieved during engine shutdown?

A

?

36
Q

e) What is the proper orientation for the manifold valve vent hole?

A

?

37
Q

f) What is a common cause of engine run-on during shutdown?

A

?

38
Q

a) Why are the fuel lines designed with various bends and loops between the manifold valve and injector nozzles

A

?

39
Q

b) What method is used to identify the size of nozzle metering jets?

A

?

40
Q

c) What is the purpose of mixing air with fuel in the nozzle emulsion chamber?

A

?

41
Q

d) What is the source of air for the fuel nozzles on this engine?

A

?

42
Q

e) Why can ambient air not be used for atomization on a turbo-charged engine?

A

?

43
Q

f) How can a clogged nozzle be identified?

A

?

44
Q
  1. Why is a function check required prior to throttle body removal?
A

?

45
Q

Why is it important to check the paperwork and carry out an inspection of the new throttle body?

A

?

46
Q
  1. Identify the control inputs from the flight deck.
A

?

47
Q
  1. How do you know if idle speed is correctly adjusted?
A

?

48
Q
  1. Where is idle speed adjusted?
A

?

49
Q
  1. How is the idle mixture adjusted?
A

?

50
Q
  1. How do you verify proper idle mixture adjustment?
A

?

51
Q
  1. Identify the location of the low and high unmetered fuel pressure adjustments.
A

?

52
Q
  1. Where is max RPM adjusted?
A

?

53
Q
  1. How is high metered fuel pressure adjusted?
A

?

54
Q
  1. What is required if an adjustment is made to the fuel injection system (eg. idle mixture)?
A

?

55
Q
  1. What certification requirements need to be complied with to allow the aircraft to return to service?
A

Maintenance release

Hangar Maintenance 2 (8 decks)

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