16 Questions
What is the primary factor that controls engine rpm and power in a diesel engine?
Amount of fuel injected into a full charge of air
What is a characteristic of diesel fuel when burned compared to gasoline?
It produces more heat
Which of the following components is unique to a diesel engine?
Governor
How do gasoline engines control power and rpm?
By varying the air and fuel mixture in the combustion chamber
What is an advantage of diesel fuel compared to gasoline in terms of handling?
It is safer to handle due to lower volatility and higher flash point
What is the primary difference between diesel and gasoline engines in terms of operation?
The method of controlling engine rpm and power
What is the primary reason for a diesel engine's higher efficiency compared to a gasoline engine?
Lower pumping loss due to inlet restriction
What is the air-fuel ratio of a diesel engine during acceleration?
20:1
What is the primary function of the exhaust stroke in a diesel engine?
To force the burned gases out through the exhaust port
What is the main advantage of a diesel engine in terms of reliability?
High reliability in continuous operation
What is a disadvantage of a diesel engine compared to a gasoline engine?
More expensive to manufacture
What is the compression ratio of a diesel engine?
14:1 to 23:1
What is the result of the higher compression ratio in a diesel engine?
More efficient engine
What is a characteristic of diesel fuel?
Unfavourable odour
What is the primary reason for a diesel engine's heavier weight compared to a gasoline engine?
Heavier components required to withstand higher compression and combustion pressures
What is a difficulty associated with starting a diesel engine in cold weather?
Difficulty in building up enough heat to ignite the fuel
Learn about the differences and similarities between diesel and gasoline engines, including their structure and cycles of operation. Understand how engine rpm and power are controlled in each type of engine. Take this quiz to test your knowledge!
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