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WorksheetsLV2.2 Engines Test
Total questions: 18
Worksheet time: 9mins
What is the primary function of the camshaft in an internal combustion engine?
To control the opening and closing of the valves
To ignite the air-fuel mixture
To drive the alternator
To pump fuel into the engine
Which component is responsible for mixing air and fuel in a carbureted engine?
Fuel injector
Carburetor
Turbocharger
Exhaust manifold
What is the purpose of the oil filter in an engine?
To cool the engine
To filter out impurities from the oil
To increase fuel efficiency
To reduce engine noise
Which of the following is a common symptom of a failing head gasket?
High oil pressure
Engine overheating
Low battery voltage
Faulty spark plugs
The process of a four-stroke engine cycle includes the following strokes:
Intake, Compression, Power, Exhaust
Intake, Power, Compression, Exhaust
Compression, Intake, Power, Exhaust
Power, Intake, Compression, Exhaust
The function of the crankshaft in an internal combustion engine is to:
convert linear motion to rotational motion
control the fuel injection
regulate the engine temperature
manage the exhaust system
The role of the timing belt or chain in an engine is to:
supply fuel to the engine
synchronize the rotation of the crankshaft and camshaft
cool the engine
lubricate engine parts
Explain the difference between a turbocharged and a naturally aspirated engine.
A turbocharged engine uses a turbine to force more air into the combustion chamber, while a naturally aspirated engine relies on atmospheric pressure.
A naturally aspirated engine uses a turbine to force more air into the combustion chamber, while a turbocharged engine relies on atmospheric pressure.
Both engines use a turbine to force more air into the combustion chamber.
Neither engine uses a turbine to force more air into the combustion chamber.
Common causes of engine knocking include:
Incorrect fuel octane rating
Worn out spark plugs
Faulty oxygen sensor
Clogged air filter
The cooling system in an engine works by:
circulating coolant through the engine to absorb heat and dissipate it through the radiator
using fans to blow air directly onto the engine to cool it down
employing a chemical reaction to lower the engine's temperature
utilizing ice packs placed around the engine
A supercharger differs from a turbocharger in that it:
is powered by the engine's crankshaft
uses exhaust gases to spin a turbine
increases fuel efficiency
reduces engine noise
The function of the throttle body in an engine is to:
control the flow of coolant
regulate the air intake
manage fuel injection
monitor exhaust emissions
The process of fuel injection in a modern engine involves:
mixing fuel with air before entering the combustion chamber
directly injecting fuel into the combustion chamber
using carburetors to mix fuel and air
injecting fuel into the exhaust system
What are the benefits of using synthetic oil in an engine?
Improved engine performance and protection
Higher fuel consumption
Increased engine noise
Reduced engine lifespan
Regular engine maintenance is important because it:
improves fuel efficiency and extends engine life
increases the risk of engine failure
is unnecessary for new vehicles
only benefits older engines
What is the function of the radiator in a vehicle's cooling system?
To store coolant
To dissipate heat from the coolant
To filter impurities from the coolant
To increase engine power
Which component in an engine is responsible for igniting the air-fuel mixture?
Camshaft
Spark plug
Fuel injector
Crankshaft
What is the primary purpose of the exhaust manifold in an engine?
To increase engine power
To collect exhaust gases from the cylinders
To cool the engine
To mix air and fuel
