Engines and Carburettors

Which stroke of a 4 stroke engine involves the highest pressure and temperature of the air-fuel mixture?

• Intake
• Compression
• Exhaust
• Power

Which stroke of a 4 stroke engine involves the ignition of the air-fuel mixture?

• Exhaust
• Power
• Compression
• Intake

Which stroke of a 4 stroke engine involves the movement of the piston from top dead center to bottom dead center?

• Exhaust
• Power
• Compression
• Intake

What is the purpose of the intake stroke in a 4 stroke engine?

• To cool down the engine
• To ignite the fuel
• To draw in air and fuel
• To compress the air-fuel mixture

What is the role of the throttle valve in a carburetor?

• Igniting the fuel
• Compressing the air-fuel mixture
• Controlling air intake
• Exhausting gases

What is the function of a carburetor in a 4 stroke engine?

• Regulating tire pressure
• Generating electricity
• Mixing air and fuel for combustion
• Cooling the engine

How does the intake stroke of a 4 stroke engine contribute to power generation?

• By igniting the mixture
• By drawing in air and fuel
• By compressing the air-fuel mixture
• By exhausting gases

What is the purpose of the compression stroke in a 4 stroke engine?

• To exhaust gases
• To compress the air-fuel mixture
• To ignite the fuel
• To cool down the engine

How does Bernoulli's equation apply to a carburetor?

• Increases pressure as speed increases
• Increases pressure as speed decreases
• Decreases pressure as speed increases
• No effect on pressure

What is the function of the float chamber in a carburetor?

• To control exhaust gases
• To store excess fuel
• To mix air and fuel
• To regulate air intake