Four Stroke Engine: Fuel System (iCEV)

1

With the addition of alcohol to gasoline and changes to refinery processes, power equipment manufacturers do NOT recommend storing fuel for more than what length of time?

1

Fuel refined for use in a warmer climate will be _______  resistant to vapor lock.

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Which of the following is considered a mid-grade gasoline?

1

Gasoline’s ability to become a vapor correctly defines which of the following terms?

1

Which of the following is NOT a benefit of alcohol-based fuels as mentioned in the presentation?

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Which fuel contained more power in our lab?

1

Which fuel produced the most soot?

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What are carburetors used for?

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What is the purpose of the float assembly?

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The amount of fuel in the float bowl is_______  during consumption, causing  the float and inlet needle to _______ , opening the _______ .

1

Which of the following accurately describes the venturi effect?

1

Which of the following exist to limit afterbang after the engine is turned off?

1

Select the appropriate choice.

	Choke	Throttle
Left (6)
Right

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What type of operation is this carburetor in based off of the choke and throttle?

1

What type of operation is this carburetor in based off of the choke and throttle?

1

Where is pressure the lowest?

1

In a _______  feed system, the fuel tank is positioned _______ the carburetor.

1

Which of the following is the most common type of fuel delivery method used to get fuel from the fuel tank to the EFI system?

1

What is the purpose of fuel injectors?

1

Which of the following are usually found in the form of a screen basket?

1

ECU is the acronym for which of the following?

1

Which of the following sensors provides the ECU with a signal for determining engine load?

1

Which of the following sensors allows the ECU to increase or decrease the fuel mixture and spark timing to adjust for deceleration, acceleration and changes in load?

1

Where can the oxygen sensor be installed?

1

Which of the following only functions after warming up to the operating temperature?

1

The engine control unit uses information received from various _______  to determine the correct amount of _______  and injection timing based on load, _______  and operator input.

1

Which of the following is the optimum air/fuel ratio for a gasoline engine?

1

A large increase in elevation can cause a carbureted engine to run ________ if not properly adjusted for the altitude.

1

Match each component with its function.

	Holds fuel for use by different metering circuits	Controls the level of fuel in the bowl	Delivers fuel to the throat of the carburetor	Where fuel enters the carburetor from the fuel tank	Maintains the air pressure at atmospheric levels	Allows fuel to enter the float bowl as it is consumed
Fuel supply inlet
Fuel bowl
Fuel bowl vent
Float assembly
Inlet needle
Pickup tube

1

EFI is the acronym for which of the following?

1

Put the steps of the “shaker test” in order.

Add fuel to the top mark
Let the solution sit for three to five minutesAdd fuel to the top mark
Shake vigorously
Let the solution sit for three to five minutes
Read the alcohol percentage level

1

How can fuel become oxidized?

1

Altering the air/fuel ration due to an increase in alcohol is known as which of the following?

1

With the addition of alcohol to gasoline and changes to refinery processes, power equipment manufacturers do NOT recommend storing fuel for more than what length of time?

Which of the following is considered a mid-grade gasoline?

Gasoline’s ability to become a vapor correctly defines which of the following terms?

Which of the following is NOT a benefit of alcohol-based fuels as mentioned in the presentation?

Which fuel contained more power in our lab?

Which fuel produced the most soot?

What are carburetors used for?

What is the purpose of the float assembly?

Which of the following accurately describes the venturi effect?

Which of the following exist to limit afterbang after the engine is turned off?

Select the appropriate choice.

What type of operation is this carburetor in based off of the choke and throttle?

What type of operation is this carburetor in based off of the choke and throttle?

Where is pressure the lowest?

Which of the following is the most common type of fuel delivery method used to get fuel from the fuel tank to the EFI system?

What is the purpose of fuel injectors?

Which of the following are usually found in the form of a screen basket?

ECU is the acronym for which of the following?

Which of the following sensors provides the ECU with a signal for determining engine load?

Which of the following sensors allows the ECU to increase or decrease the fuel mixture and spark timing to adjust for deceleration, acceleration and changes in load?

Where can the oxygen sensor be installed?

Which of the following only functions after warming up to the operating temperature?

Which of the following is the optimum air/fuel ratio for a gasoline engine?

A large increase in elevation can cause a carbureted engine to run ________ if not properly adjusted for the altitude.

Match each component with its function.

EFI is the acronym for which of the following?

Put the steps of the “shaker test” in order.

How can fuel become oxidized?

Altering the air/fuel ration due to an increase in alcohol is known as which of the following?

Ethanol is ____________ oxygen.