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Aircraft System > aircraft systen M1 > Flashcards

aircraft systen M1 Flashcards

1
Q

It is designed to provide an uninterrupted flow of clean fuel
from the fuel tanks to the engine

A

Fuel System

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2
Q

The fuel must be available to the engine under all conditions of the engine
power, altitude, attitude, and during all approved flight maneuvers

A

Fuel System

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3
Q

Two common classifications apply to fuel systems in small aircraft ( classification of fuel system )

A

Gravity Feed System

Fuel Pump System

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4
Q

It utilizes the force of
gravity to transfer the fuel from the tanks to
the engine.

A

Gravity Feed System

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5
Q

No need for pump

A

Gravity feed system

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6
Q

Used mostly in high wing aircraft.

A

Gravity feed system

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7
Q

Aircraft with _________ have two fuel pumps.

A

Fuel Pump System

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8
Q

The __________is engine driven with an
electrically driven auxiliary pump provided for use in
engine starting and in the event the engine pump fails

A

main pump system

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9
Q

The ___________, also known as a boost pump,

provides added reliability to the fuel system.

A

auxiliary pump

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10
Q

The

electrically-driven auxiliary pump is controlled by a ________ in the___________.

A

switch, flight deck

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11
Q

Used mostly in low wing aircrafts.

A

fuel pump system

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12
Q

Fuel System Components

A
  • Fuel Primer
  • Fuel Tanks
  • Fuel Lines
  • Fuel Gauges
  • Fuel Selector valve
  • Fuel Strainers, Sumps, and drains
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13
Q

It is used to draw fuel from the tanks to vaporize fuel directly
into the cylinders before starting the engine

A

Fuel Primer

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14
Q

Both gravity-feed and fuel-pump systems may incorporate a _______ into
the system.

A

fuel primer

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15
Q

During cold weather, when engines are difficult to start, how will the fuel primer help

A

because during cold weathers there is not enough heat available to vaporize the fuel in the
carburetor

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16
Q

normally located inside the wings of an airplane, have a filler
opening on top of the wing through which they can be filled.

A

fuel tanks

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17
Q

A ____ covers fuel tanks

opening

A

filler cap

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18
Q

What remains the same in every fuel system, is that the fuel tank (or tanks) must be

A

ideally positioned to store and deliver clean fuel to the engine at the correct pressure
and flow rate regardless of operating conditions

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19
Q

The tanks are ___ _ _ ______ to maintain ______ inside the

tank.

A

vented to the outside; atmospheric pressure inside the

tank

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20
Q

The fuel tanks may be ____ through the filler cap or through a ______
through the surface of the wing.

A

vented: tube extending

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21
Q

It provides the means to deliver fuel from the fuel tank to an aircraft’s
engine, making maintenance and repair of this aircraft fuel system
component essential.

A

fuel lines

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22
Q

It needs to be securely attached to the aircraft with clamps and is
manufactured from aluminum alloy tubing, and from rubber or Teflon hose
where flexibility is required. In areas where it will be exposed to
intense heat, the fire-resistant hose is used.

A

fuel lines

23
Q

The _____ indicate the amount of fuel measured by a sensing

unit in each fuel tank and is displayed in gallons or pounds.

A

fuel quantity gauges/ fuel gauge

24
Q

If a fuel pump is installed in the fuel system, a _________ is also
included. This gauge indicates the pressure in the fuel lines.

A

fuel pressure gauge

25
Q

Aircraft certification rules require accuracy in fuel gauges only when they
read

A

empty

26
Q

Aircraft are an integral component of an aircraft fuel system,
which enables fuel to be loaded, stored, managed, and delivered to the
engine

A

fuel pumps

27
Q

It delivers a continuous supply of fuel at the proper

pressure during engine operation.

A

Engine-driven fuel pumps

28
Q
  • the auxiliary fuel pump
A

Electric- driven fuel pump

29
Q

-Electric- driven fuel pump

A
  • the auxiliary fuel pump
30
Q

It allows selection of fuel from various tanks

A

Fuel selector valve

31
Q

A common type of selector valve contains four positions

A

LEFT. RIGHT, BOTH, OFF

32
Q

Fuel selector valve-
Selecting the ____________ position allows fuel to feed only from the
respective tank

A

LEFT or RIGHT

33
Q

Fuel selector valve-
Selecting the ___ position feeds fuel from both
tanks

A

BOTH

34
Q

Fuel selector valve -
The ________ position may be used to balance the amount of
fuel remaining in each wing tank

A

LEFT or RIGHT

35
Q 
Regardless of the type of fuel selector
in use, \_\_\_\_\_\_\_\_\_\_ should be
monitored closely to ensure that a
the tank does not run completely out of
fuel.
A

fuel consumption

36
Q

After leaving the fuel tank and before it enters the carburetor, the fuel passes
through a ______ that removes any moisture and other sediments in the
system.

A

strainer

36
Q

After leaving the fuel tank and before it enters the carburetor, the fuel passes
through a ______ that removes any moisture and other sediments in the
system.

A

strainer

37
Q

Since these contaminants are heavier than aviation fuel, they settle in a ___ at the bottom of the strainer assembly.
It is a low point in a fuel system and/or fuel tank.

A

sump

38
Q

The fuel strainer should be ______ before each flight.
• Fuel samples should be drained and checked visually for water and
contaminant

A

drained

39
Q

is identified by an octane or performance number (grade), which
designates the antiknock value or knock resistance of the fuel mixture in the engine cylinder

A

aviation gasaoline . AVGAS

40
Q

The higher the grade of gasoline….

A

the more pressure the fuel can withstand without

detonating

41
Q

This kind of fuel are used in lower-compression engines because these fuels ignite at a
lower temperature.

A

Lower grades of fuel

42
Q

This kind of fuel is used in higher-compression engines because they ignite at higher
temperatures, but not prematurely.

A

higher grades

43
Q

If the proper grade of fuel is not available, use the next ______ grade as a substitute. Never
use a grade ____ than recommended

A

higher ; lower

44
Q

Fuel contamination due to condensation

A

Empty space inside the fuel tanks can contain moisture that condenses
when the outside air temperature cools.

45
Q

What is detonation?

A

Uncontrolled spontaneous explosive ignition of the fuel/air mixture in the
combustion chamber.

46
Q

Use of the lower fuel grade than that specified by the aircraft manufacturer.

  • Operation of the engine with extremely high manifold pressure in conjunction with
    low rpm.
A

cause of detonation

47
Q

Operation of the engine at high power settings with the excessively lean mixture
- Maintaining extended ground operations or steep climbs in which the cylinder
cooling is reduced.

A

cause of detonation

48
Q

Fuel related problems

A

Pre Ignition, Detonation, Fuel Contamination due to condensation

49
Q

When the fuel/air mixture ignites prior to the engines normal ignition event

A

pre-ignition

50
Q
  • Premature burning is usually caused by a residual hot spot in the combustion
    chamber, often created by a small deposit on a spark plug.
  • Using lower than prescribed octane rating
A

causes of pre ignition

51
Q

It is the principal fuel contaminant

A

WATER

52
Q

As a safety measure, the fuel sumps should be drained

________ during the preflight inspection

A

before every flight

53
Q

Why should fuel tanks be filled after each flight or after the last flight of the day?

A

to prevent moisture condensation within the tank. To prevent fuel
contamination, avoid refueling from cans and drums

Aircraft System (11 decks)

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