Question 1

Oxygenated fuels tend to have higher CO emissions.

Accepted Answer

A) True 
 B)False

Question 2

The ideal air/fuel or stoichiometric ratio for a gasoline engine is approximately _____ pounds of air mixed with 1 pound of gasoline.

Accepted Answer

A)  12 to 13
B)  14.1
C)  14.7
D)  15 to 16E) B) and D)
F) A) and D)

Question 3

LP-gas is commonly called ____________________.

Accepted Answer

The answer of LP-gas is commonly called ____________________....

Question 4

Technician A says Number 1 diesel fuel is the most popular and widely distributed. Technician B says Number 1 diesel fuel is blended with Number 2 to improve starting in cold weather. Who is correct?

Accepted Answer

A)  A only
B)  B only
C)  both A and B
D)  neither A nor BE) All of the above
F) C) and D)

Question 5

LNG (liquefied natural gas)is not a practical fuel for personal use and is only used in heavy-duty applications.

Accepted Answer

A) True 
 B)False

Question 6

Technician A says that dedicated vehicles are those designed to use one particular type of fuel. Technician B says that bi-fuel vehicles can operate solely on an alcohol-based fuel or unleaded gasoline, or a mixture of the two, which gives the driver flexibility and convenience when refilling the fuel tank Who is correct?

Accepted Answer

A)  A only
B)  B only
C)  both A and B
D)  neither A nor BE) B) and D)
F) C) and D)

Question 7

Define the term "volatility."

Accepted Answer

Volatility is the ab...

Question 8

While discussing the reasons why the use of E 85 gasoline is good for consumers: Technician A says it is produced in the United States and can reduce our reliance on foreign oil. Technician B says an engine's fuel consumption is greatly reduced. Who is correct?

Accepted Answer

A)  A only
B)  B only
C)  both A and B
D)  neither A nor BE) B) and C)
F) C) and D)

Question 9

Pump gasoline may safely contain up to 10 percent alcohol.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is NOT a major factor affecting fuel performance?

Accepted Answer

A)  antiknock quality
B)  sulfur content
C)  volatility
D)  nitrogen contentE) A) and B)
F) A) and C)

Question 11

Which of the following chemicals is commonly added to gasoline to increase its octane rating?

Accepted Answer

A)  Isooctane
B)  Heptane
C)  Sulfur
D)  EthanolE) All of the above
F) B) and C)

Question 12

Technician A says there is less heat energy in high-octane gasoline and, therefore, less power is generated during combustion. Technician B says using a higher-octane gasoline than required will not produce more power unless the engine has a knock sensor that allows the system to adjust ignition timing to take advantage of the higher octane. Who is correct?

Accepted Answer

A)  A only
B)  B only
C)  both A and B
D)  neither A nor BE) A) and C)
F) A) and B)

Question 13

Which statement concerning E85 automotive fuel is false?

Accepted Answer

A)  E85 produces less CO2  than gasoline. 
B)  E85 produces less emissions than gasoline.
C)  E85 keeps the fuel system cleaner than gasoline.
D)  E85 is more fuel efficient than gasoline.E) B) and D)
F) A) and B)

Question 14

Using gasoline with high levels of sulfur can cause ______.

Accepted Answer

A)  damage to engine bearings
B)  exhaust valve pitting
C)  rotten egg smell from the exhaust
D)  all answers are correctE) B) and C)
F) A) and C)

Question 15

All the following are emission-related characteristics of diesel fuel EXCEPT:

Accepted Answer

A)  high sulfur content
B)  particulate emissions
C)  high carbon dioxide emissions
D)  high nitrogen oxide emissionsE) All of the above
F) A) and B)

Question 16

Which of the following is considered natural gas?

Accepted Answer

A)  kerosene
B)  propane
C)  gasoline
D)  diesel fuelE) A) and B)
F) A) and C)

Question 17

Octane ratings are being discussed. Technician A says most modern engines are designed to use regular grade gasoline. Technician B says to use high octane gasoline only when an engine was designed to use it. Who is correct?

Accepted Answer

A)  A only
B)  B only
C)  both A and B
D)  neither A nor BE) All of the above
F) A) and B)

Question 18

Piezoelectric materials can emit a small amount of voltage when they are struck, squeezed, or exposed to vibration.

Accepted Answer

A) True 
 B)False

Question 19

In the past the limit for sulfur content in diesel fuel was 500 ppm [parts per million]. The current standard for low sulfur diesel fuel allows a maximum of _____ of sulfur in the fuel.

Accepted Answer

A)  15 ppm
B)  50 ppm
C)  100 ppm
D)  200 ppmE) B) and C)
F) C) and D)

Question 20

The most common method of measuring fuel volatility is the ____________________ pressure test.

Accepted Answer

The answer of The most common method of measuring fuel...

Exam 28: Gasoline, Diesel and Other Fuels

LP-gas is commonly called ____________________.

Correct Answer
verified

The most common method of measuring fuel volatility is the ____________________ pressure test.

Correct Answer
verified

Technician A says Number 1 diesel fuel is the most popular and widely distributed. Technician B says Number 1 diesel fuel is blended with Number 2 to improve starting in cold weather. Who is correct?

Correct Answer
verified

Which statement concerning E85 automotive fuel is false?

Correct Answer
verified

All the following are emission-related characteristics of diesel fuel EXCEPT:

Correct Answer
verified

Oxygenated fuels tend to have higher CO emissions.

Correct Answer
verified

Piezoelectric materials can emit a small amount of voltage when they are struck, squeezed, or exposed to vibration.

Correct Answer
verified

Which of the following is NOT a major factor affecting fuel performance?

Correct Answer
verified

The ideal air/fuel or stoichiometric ratio for a gasoline engine is approximately _____ pounds of air mixed with 1 pound of gasoline.

Correct Answer
verified

In the past the limit for sulfur content in diesel fuel was 500 ppm [parts per million]. The current standard for low sulfur diesel fuel allows a maximum of _____ of sulfur in the fuel.

Correct Answer
verified

Correct Answer
verified

LNG (liquefied natural gas)is not a practical fuel for personal use and is only used in heavy-duty applications.

Correct Answer
verified

Using gasoline with high levels of sulfur can cause ______.

Correct Answer
verified

Define the term "volatility."

Correct Answer
verified
Volatility is the ab...
View Answer

Pump gasoline may safely contain up to 10 percent alcohol.

Correct Answer
verified

Correct Answer
verified

Octane ratings are being discussed. Technician A says most modern engines are designed to use regular grade gasoline. Technician B says to use high octane gasoline only when an engine was designed to use it. Who is correct?

Correct Answer
verified

Which of the following is considered natural gas?

Correct Answer
verified

While discussing the reasons why the use of E 85 gasoline is good for consumers: Technician A says it is produced in the United States and can reduce our reliance on foreign oil. Technician B says an engine's fuel consumption is greatly reduced. Who is correct?

Correct Answer
verified

Which of the following chemicals is commonly added to gasoline to increase its octane rating?

Correct Answer
verified

Exam 28: Gasoline, Diesel and Other Fuels

LP-gas is commonly called ____________________.

Correct AnswerverifiedShow Answer

The most common method of measuring fuel volatility is the ____________________ pressure test.

Correct AnswerverifiedShow Answer

Technician A says Number 1 diesel fuel is the most popular and widely distributed. Technician B says Number 1 diesel fuel is blended with Number 2 to improve starting in cold weather. Who is correct?

Correct AnswerverifiedShow Answer

Which statement concerning E85 automotive fuel is false?

Correct AnswerverifiedShow Answer

All the following are emission-related characteristics of diesel fuel EXCEPT:

Correct AnswerverifiedShow Answer

Oxygenated fuels tend to have higher CO emissions.

Correct AnswerverifiedShow Answer

Piezoelectric materials can emit a small amount of voltage when they are struck, squeezed, or exposed to vibration.

Correct AnswerverifiedShow Answer

Which of the following is NOT a major factor affecting fuel performance?

Correct AnswerverifiedShow Answer

The ideal air/fuel or stoichiometric ratio for a gasoline engine is approximately _____ pounds of air mixed with 1 pound of gasoline.

Correct AnswerverifiedShow Answer

In the past the limit for sulfur content in diesel fuel was 500 ppm [parts per million]. The current standard for low sulfur diesel fuel allows a maximum of _____ of sulfur in the fuel.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

LNG (liquefied natural gas)is not a practical fuel for personal use and is only used in heavy-duty applications.

Correct AnswerverifiedShow Answer

Using gasoline with high levels of sulfur can cause ______.

Correct AnswerverifiedShow Answer

Define the term "volatility."

Correct AnswerverifiedVolatility is the ab...View AnswerShow Answer

Pump gasoline may safely contain up to 10 percent alcohol.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Octane ratings are being discussed. Technician A says most modern engines are designed to use regular grade gasoline. Technician B says to use high octane gasoline only when an engine was designed to use it. Who is correct?

Correct AnswerverifiedShow Answer

Which of the following is considered natural gas?

Correct AnswerverifiedShow Answer

While discussing the reasons why the use of E 85 gasoline is good for consumers: Technician A says it is produced in the United States and can reduce our reliance on foreign oil. Technician B says an engine's fuel consumption is greatly reduced. Who is correct?

Correct AnswerverifiedShow Answer

Which of the following chemicals is commonly added to gasoline to increase its octane rating?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Volatility is the ab...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified