Quiz 1 Diesel Engines

What is the primary ignition source in a diesel engine?

• Spark plug

• Glow plug

• Fuel injector

• Turbocharger

In a diesel engine, what is the function of the fuel injector?

• Igniting the fuel-air mixture

• Compressing the air-fuel mixture

• Mixing air and fuel

• Injecting fuel directly into the combustion chamber

What is the typical compression ratio of a diesel engine compared to a gasoline engine?

• Lower

• Higher

• Same

• Variable

Diesel engines are commonly used in which of the following applications?

• Passenger cars

• Aircraft

• Lawn mowers

• Trucks and heavy machinery

Which type of diesel engine uses a turbocharger to increase power output?

• Naturally aspirated

• Turbocharged

• Supercharged

• Hybrid

What is the primary advantage of diesel engines over gasoline engines?

• Higher fuel efficiency

• Lower initial cost

• Smoother operation

• Easier cold starting

Diesel engines operate on which combustion cycle?

• Otto cycle

• Brayton cycle

• Diesel cycle

• Rankine cycle

What type of fuel is used in diesel engines?

• Gasoline

• Kerosene

• Diesel fuel

• Propane

Diesel engines are classified based on their number of:

• Valves

• Cylinders

• Turbochargers

• Fuel injectors

Which component of a diesel engine increases combustion efficiency by preheating the air in the combustion chamber?

• Turbocharger

• Intercooler

• Radiator

• Glow plug