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CHAPTER7B (PART 1)

CHAPTER7B (PART 1)

18問 • 1年前

Dorian Pinuellas

問題一覧

1

As the velocity of air increases in the throat of a venturi, the pressure of the air will _____________ (increase or decrease).

decrease

2

The chemically perfect mixture of air and fuel (stoichiometric mixture) consists of _________ pounds of air for each pound of fuel.

15

3

A reciprocating engine will develop maximum power with a mixture of approximately _________:1.

12

4

Carburetors tend to run richer at ___________ (altitude or ground level).

altitude

5

Carburetors in which the air passes upward through the unit are called _____________ carburetors.

updraft

6

The throttle valve of a float-type carburetor is located between the _____________ and the engine.

venturi

7

A float-type carburetor discharges the fuel _____________ (upstream or downstream) of the throttle valve.

upstream

8

What are the four basic components of the main metering system of a float carburetor? a. ______________ b. ______________ c. ______________ d. ______________

venturi, main discharge nozzle, main metering valve, throttle valve

9

What is the main function of the venturi? __________

decrease the pressure

10

Air bled into the main metering system ___________ (increases or decreases) fuel density and destroys surface tension.

decreases

11

The fuel level in the float chamber is usually kept about ___________ inch below the opening in the main discharge nozzle.

1/8

12

The _____________ ____________ system determines the ratio of fuel to air in the mixture.

mixture control

13

The ______ ___________ system is used to shut off the fuel and stop the engine.

idle cutoff

14

When a carburetor equipped with a back suction mixture control is in the lean position, the pressure in the float chamber is the same as the pressure at the ____________ ______.

discharge nozzle

15

The ___________ system supplies extra fuel when the throttle is opened quickly.

acceleration

16

The power enrichment system is sometimes called an ___________ system.

economizer

17

Carburetor controls should be rigged so they have an equal amount of __________-__________ at both ends of their travel.

spring back

18

A pressure carburetor discharges fuel ___________ (upstream or downstream) of the throttle valve.

downstream

CHAPTER 1A

CHAPTER 1A

Dorian Pinuellas · 53問 · 2年前

CHAPTER 1A

CHAPTER 1A

53問 • 2年前

Dorian Pinuellas

chapter1b

chapter1b

Dorian Pinuellas · 31問 · 2年前

chapter1b

chapter1b

31問 • 2年前

Dorian Pinuellas

CHAPTER3A

CHAPTER3A

Dorian Pinuellas · 27問 · 2年前

CHAPTER3A

CHAPTER3A

27問 • 2年前

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3a part2

3a part2

Dorian Pinuellas · 26問 · 2年前

3a part2

3a part2

26問 • 2年前

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CHAPTER4

CHAPTER4

Dorian Pinuellas · 20問 · 2年前

CHAPTER4

CHAPTER4

20問 • 2年前

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CHAPTER3B

CHAPTER3B

Dorian Pinuellas · 10問 · 2年前

CHAPTER3B

CHAPTER3B

10問 • 2年前

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CHAPTER4B

CHAPTER4B

Dorian Pinuellas · 28問 · 2年前

CHAPTER4B

CHAPTER4B

28問 • 2年前

Dorian Pinuellas

CHAPTER5B

CHAPTER5B

Dorian Pinuellas · 9問 · 2年前

CHAPTER5B

CHAPTER5B

9問 • 2年前

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CHAPTER6B

CHAPTER6B

Dorian Pinuellas · 13問 · 2年前

CHAPTER6B

CHAPTER6B

13問 • 2年前

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CHAPTER8E P858-862

CHAPTER8E P858-862

Dorian Pinuellas · 30問 · 1年前

CHAPTER8E P858-862

CHAPTER8E P858-862

30問 • 1年前

Dorian Pinuellas

CHAPTER8E PART2

CHAPTER8E PART2

Dorian Pinuellas · 24問 · 1年前

CHAPTER8E PART2

CHAPTER8E PART2

24問 • 1年前

Dorian Pinuellas

CHAPTER8F

CHAPTER8F

Dorian Pinuellas · 14問 · 1年前

CHAPTER8F

CHAPTER8F

14問 • 1年前

Dorian Pinuellas

CHAPTER7A

CHAPTER7A

Dorian Pinuellas · 12問 · 1年前

CHAPTER7A

CHAPTER7A

12問 • 1年前

Dorian Pinuellas

CHAPTER7B (PART2)

CHAPTER7B (PART2)

Dorian Pinuellas · 18問 · 1年前

CHAPTER7B (PART2)

CHAPTER7B (PART2)

18問 • 1年前

Dorian Pinuellas

CHAPTER 7C

CHAPTER 7C

Dorian Pinuellas · 15問 · 1年前

CHAPTER 7C

CHAPTER 7C

15問 • 1年前

Dorian Pinuellas

問題一覧

1

As the velocity of air increases in the throat of a venturi, the pressure of the air will _____________ (increase or decrease).

decrease

2

The chemically perfect mixture of air and fuel (stoichiometric mixture) consists of _________ pounds of air for each pound of fuel.

15

3

A reciprocating engine will develop maximum power with a mixture of approximately _________:1.

12

4

Carburetors tend to run richer at ___________ (altitude or ground level).

altitude

5

Carburetors in which the air passes upward through the unit are called _____________ carburetors.

updraft

6

The throttle valve of a float-type carburetor is located between the _____________ and the engine.

venturi

7

A float-type carburetor discharges the fuel _____________ (upstream or downstream) of the throttle valve.

upstream

8

What are the four basic components of the main metering system of a float carburetor? a. ______________ b. ______________ c. ______________ d. ______________

venturi, main discharge nozzle, main metering valve, throttle valve

9

What is the main function of the venturi? __________

decrease the pressure

10

Air bled into the main metering system ___________ (increases or decreases) fuel density and destroys surface tension.

decreases

11

The fuel level in the float chamber is usually kept about ___________ inch below the opening in the main discharge nozzle.

1/8

12

The _____________ ____________ system determines the ratio of fuel to air in the mixture.

mixture control

13

The ______ ___________ system is used to shut off the fuel and stop the engine.

idle cutoff

14

When a carburetor equipped with a back suction mixture control is in the lean position, the pressure in the float chamber is the same as the pressure at the ____________ ______.

discharge nozzle

15

The ___________ system supplies extra fuel when the throttle is opened quickly.

acceleration

16

The power enrichment system is sometimes called an ___________ system.

economizer

17

Carburetor controls should be rigged so they have an equal amount of __________-__________ at both ends of their travel.

spring back

18

A pressure carburetor discharges fuel ___________ (upstream or downstream) of the throttle valve.

downstream