AGK day 2 Flashcards

1
Q

What is the ineffective crank angle

A

The point where the piston doesn’t move at the bottom dead centre but the crank is still adjusting

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2
Q

What is stoichiometric

A

Chemically balanced

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3
Q

What is the AFR

A

15:1

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4
Q

How does a carboreta work

A

A Venturi a pressure duct going through the point of lowest pressure that allows the atmospheric pressure to push it out

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5
Q

What is a main jet

A

A bolt with a hole that decides how much is released

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6
Q

What is an atomiser

A

Turns liquid into vapour so that it’ll burn

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7
Q

What type of fuel do you want for take off

A

Rich for more efficiency

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8
Q

What type of fuel do you want for cruising

A

A leaner fuel

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9
Q

What does accelerator pumps do

A

Prevents lean cut

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10
Q

How do you get rid of ice in the carboreta

A

Carb heat

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11
Q

What is the problems with carb heat

A

You lose 15% of power
Create condensation ice conditions
Could lead to detonation

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12
Q

How does a fuel injection work

A

No Venturi and carboreta icing and will have alt air instead

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13
Q

At what stage of flight is the fuel pump on?

A

Critical stages of flight and off during cruising

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14
Q

What is the FADEC

A

Full authority digital control
Looks into throttle position and engine speed

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15
Q

What are the 4 types of valve for fuel injection

A

Manifold valve
Metering valve
Mixture valve
Distributor valve

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16
Q

With regard to the fuel injection system what is the last point all the fuel is together

A

The manifold valve

17
Q

What are the three types of oil

A

Synthetic
Semi-synthetic
Mineral

18
Q

What is a dry sump

A

A sealed fuel system that is mainly used for acrobatic aircraft and high altitude

19
Q

What is a wet sump

A

A fuel system that is used in standard low altitude flight with no oil reservoir

20
Q

Is oil compressible

A

No

21
Q

Which is the main task of the fuel system

A

To ensure that 100% of the fuel flow required in the most critical phase of flight is provided

22
Q

The purpose of the Venturi in a carburettor is

A

To create the suction necessary to cause fuel to flow through the carburettors main jets