Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

M11 Aircraft Systems > Fuel > Flashcards

Fuel Flashcards

1
Q

what method refuelling can be done from cockpit

A

automatic pressure refuelling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what does jettison system do

A

dump fuel in case of emergency

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what does spring loaded check valve do in regards to fuel

A

keep refuelling hose to 90 degrees

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what is present on leak monitor if there’s no leak

A

nothing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

freeze and flash point of JET A1

A

38degrees and -47 degrees

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What does the Kirt aluminium gasket do

A

Bonding to prevent sparks from static charges

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What fuel is most common in Europe

A

Jet A1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Flash point and freezing point of jet a1

A

38 degrees and -47 degrees

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Jet a1 American name

A

JP1A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Most common fuel used in America

A

Jet A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Jet A fuel American name

A

JP1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Jet A flash point and freezing point

A

38 degrees and -40 degrees

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Problem with flying high and fuel

A

Cause ambient pressure to decrease which causes fuel to vaporise

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Jet A and A1 density at 15 degrees

A

0.81kg/ltr

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How is water identified in fuel

A

Small droplets or water bubbles or milky appearance - suspended

If dissolved it will be invisible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Problems with water in fuel

A

Ice build up , supports corrosion and erratic fuel quantity indications

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Where are fuel tanks located

A

Aircraft wings

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Where are vent surge tanks

A

Wing tips

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What do vent surge tanks do

A

Make sure fuel is properly vented

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Most common fuel tank

A

Integral tank

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Advantage of integral tank

A

Save weight because parts of structure used as tank walls

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What are auxiliary fuel tanks made of

A

Light metal alloy container
Flexible rubber bladder

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What’s used to prevent fuel movement during attitude changes

A

Dampening devices

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What’s the purpose of flap baffle check valve

A

Movement in one direction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Where are baffle valves located

A

Entire length of ribs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What does the fuel ventilation system do

A

Protect aircraft and passengers against dangerous fuel tank vapours

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What is used to vent stabiliser tank

A

Ram air

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

How do fuel probes measure fuel

A

Measuring capacitance in probe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

System of refuelling from the cockpit

A

Automatic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Type of valve used to prevent leaks

A

Spring loaded check valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

When inspecting fuel leak what will you see if it’s working

A

Nothing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Where is NACA air intake located

A

Lower wing surface

33
Q

What is flash point

A

Lowest temp fuel creates enough vapours for it to become inflamed

34
Q

How to detect water in fuel

A

Syringe test cartridge or filter change colour

35
Q

What do auxiliary tanks do

A

Tanks in cargo compartment that increase fuel range

36
Q

How do you seal integral tanks

A

Fillet seal

37
Q

How to aces fuel tanks

A

Access panels

38
Q

How are fuel tanks ventilated

A

passing air around the fuel tank, then releasing this
air to atmosphere carrying away fuel leaks and vapour

39
Q

Purpose of draining tanks

A

Remove water or maintenance

40
Q

Two types of drain valve

A

Direct and indirect

41
Q

Difference between direct and indirect drain valves

A

Direct installed at lowers point of tanks

Indirect is not at lowest point

42
Q

What does water scavenge system do

A

Removes water collected in tank by sucking into a pump

43
Q

Purpose of fuel tank vent System

A

Allows air in fuel tank to escape refuelling and air to come in when fuel is being used

Protects from over and under pressuring

44
Q

During flight how is air for fuel pressurisation collected

A

NACA air inlet

45
Q

2 methods of refuelling

A

Gravity and pressure

46
Q

Disadvantage of gravity refuelling

A

Takes too long and easy to spill

47
Q

Normal method of refuelling

A

Pressurised

48
Q

How quick is pressure refilling happening

A

50 psi

49
Q

Method of pressure refuelling

A

Manual , auto , override

50
Q

What must be closed to operate refuelling valve switches

A

Switch guard

51
Q

How does airbus indicate respective tank is full

A

Blue light

52
Q

When is electrical power for the refuelling system supplied

A

When panel door is open

53
Q

How is normal refuelling power provided

A

External power or apu

54
Q

Purpose of overflow sensors or float switches

A

Detect fuel over spills from tanks

55
Q

When is fuel transfer limited

A

In flight as it changes aircraft centre of gravity

56
Q

Purpose of fuel scavenge system

A

Reduce amount of non-usable fuel in tanks

57
Q

Most common method fuel scavenging

A

Use of jet pumps

58
Q

What can the re circulation system do in regards to engine oil and generator oil

A

Pumped through engine oil cooler this heats up fuel and cools the engine oil

59
Q

Two methods of defueling

A

Pressure and suction

60
Q

How do u pressure defuel

A

Using tank boost pumps

61
Q

Output pressure of boost pumps to defuel

A

25-50psi

62
Q

How do you suction defuel

A

Use of a fuel truck / bowser to suck fuel out

63
Q

Minimum suction required for defueling

A

10-15psi

64
Q

How is fuel transfer done

A

Only manually

65
Q

What do you need to do after you transfer fuel

A

Need to balance aircraft after incorrect refuelling or if you need to empty fuel tank for maintenance

66
Q

What are trim tanks used for

A

Increase effect of an aircraft in flight which reduces fuel consumption

67
Q

How does trim tank fuel save

A

Reduces aerodynamic drag

68
Q

Who determines centre of gravity

A

Manufacture at delivery

69
Q

How much is target centre of gravity

A

2% foward of certified aft limit of aircraft

70
Q

Where is jettison panel located

A

Overhead panel

71
Q

Two fuel characteristic sensors

A

Compensator & densitometer

72
Q

Accuracy of fuel quantity

A

99%

73
Q

What’s used to measure fuel temperature

A

Thermistor

74
Q

Where is temperature bulb installed

A

One of the wing tanks at the rear spar

75
Q

What clothing protects against sparks when entering fuel tank

A

Cotton tank access clothing

76
Q

How is safe to work tank achieved

A

Sufficient ventilation

77
Q

How many people are required for fuel tank access

A

2 people or more

78
Q

What’s not equipt with external filler port

A

Centre and stabiliser thank

M11 Aircraft Systems (23 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions