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Abe > Fuel And Combustion > Flashcards

Fuel And Combustion Flashcards

1
Q

What is the process by which fuel is converted into heat energy through a chemical reaction?

A

Combustion

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2
Q

True or False: Combustion is an exothermic reaction.

A

True

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3
Q

What is the primary purpose of combustion in engines?

A

To generate power

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4
Q

What are the three essential components needed for combustion to occur?

A

Fuel, oxygen, heat

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5
Q

What type of fuel is commonly used in internal combustion engines?

A

Gasoline

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6
Q

Fill in the blank: Combustion is a _____ reaction that releases energy.

A

Chemical

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7
Q

What is the unit of measurement for energy content in fuel?

A

BTU (British Thermal Unit)

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8
Q

What is the minimum temperature at which a fuel spontaneously ignites in air called?

A

Autoignition temperature

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9
Q

What are the products of complete combustion of hydrocarbons?

A

Carbon dioxide and water

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10
Q

In a stoichiometric combustion process, what is the ideal ratio of fuel to oxygen for complete combustion?

A

1:14.7

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11
Q

What is the term for the visible flame produced by combustion of gases?

A

Flame

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12
Q

What is the process of mixing fuel with air before combustion called?

A

Air-fuel ratio

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13
Q

What is the device used to ignite the fuel-air mixture in an engine called?

A

Spark plug

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14
Q

What is the primary purpose of a combustion chamber in an engine?

A

To contain the combustion process

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15
Q

What is the term for the unburned fuel that escapes combustion?

A

Incomplete combustion

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16
Q

What is the chemical symbol for oxygen?

A

O2

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17
Q

What is the process of converting fuel into mechanical energy without combustion called?

A

Electrochemical conversion

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18
Q

What is the term for the ratio of the mass of air to the mass of fuel in a combustion process?

A

Air-fuel ratio

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19
Q

What is the device that controls the air-fuel mixture in an engine called?

A

Carburetor

20
Q

What is the term for the ignition of the fuel-air mixture before the spark plug fires?

A

Pre-ignition

21
Q

What is the process of reducing the temperature in an engine to prevent knocking?

A

Cooling

22
Q

What is the term for the rapid, uncontrolled combustion of fuel in an engine?

A

Knocking

23
Q

What is the primary purpose of a fuel injector in an engine?

A

To deliver fuel into the combustion chamber

24
Q

What is the term for the resistance of fuel to ignition under pressure?

A

Octane rating

25
Q

What is the chemical symbol for gasoline?

A

C8H18

26
Q

What is the term for the process of converting fuel into heat energy through a controlled combustion process?

A

Thermal efficiency

27
Q

What is the primary purpose of a fuel pump in an engine?

A

To deliver fuel from the tank to the engine

28
Q

What is the term for the ignition of the fuel-air mixture due to high temperatures in the combustion chamber?

A

Detonation

29
Q

What is the primary purpose of a fuel filter in an engine?

A

To remove impurities from the fuel

30
Q

What is the term for the process of converting fuel into mechanical energy through combustion?

A

Thermal efficiency

31
Q

What is the primary purpose of a turbocharger in an engine?

A

To increase the power output by compressing air

32
Q

What is the term for the process of reducing the temperature of the air-fuel mixture in an engine?

A

Intercooling

33
Q

What is the primary purpose of a fuel pressure regulator in an engine?

A

To maintain consistent fuel pressure

34
Q

What is the term for the process of converting fuel into heat energy through an exothermic reaction?

A

Combustion

35
Q

What is the primary purpose of a fuel rail in an engine?

A

To deliver fuel to the injectors

36
Q

What is the term for the process of converting fuel into mechanical energy through controlled combustion?

A

Thermal efficiency

37
Q

What is the primary purpose of a wastegate in a turbocharged engine?

A

To regulate boost pressure

38
Q

What is the term for the process of reducing the temperature of the air entering an engine?

A

Intercooling

39
Q

What is the primary purpose of a fuel pressure gauge in an engine?

A

To monitor fuel pressure

40
Q

What is the term for the process of converting fuel into heat energy through combustion?

A

Thermal efficiency

41
Q

What is the primary purpose of a fuel tank in an engine?

A

To store fuel for the engine

42
Q

What is the primary purpose of a wastegate actuator in a turbocharged engine?

A

To control the wastegate

43
Q

What is the primary purpose of a fuel pressure sensor in an engine?

A

To measure fuel pressure

44
Q

What is the primary purpose of a fuel line in an engine?

A

To transport fuel from the tank to the engine

45
Q

What is the primary purpose of a wastegate spring in a turbocharged engine?

A

To control the wastegate opening pressure

46
Q

What is the primary purpose of a fuel pressure relief valve in an engine?

A

To regulate fuel pressure

47
Q

What is the primary purpose of a fuel pump relay in an engine?

A

To control the fuel pump operation

Abe (1 decks)

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