Understanding Engine Components Quiz

What is the primary function of the piston in an internal combustion engine?

• To ignite the air-fuel mixture

• To transfer force from expanding gas to the crankshaft

• To regulate the flow of exhaust gases

• To cool the engine

Which component connects the piston to the crankshaft?

• Camshaft

• Connecting rod

• Valves

• Fuel injector

What is the main purpose of the camshaft in an engine?

• To convert linear motion to rotational motion

• To open and close the engine's valves

• To inject fuel into the combustion chamber

• To cool the engine

In a four-stroke engine, how many times does the crankshaft rotate during one complete cycle of the engine?

• 1 rotation

• 2 rotations

• 4 rotations

Which component is NOT part of the valvetrain?

• Rocker arm

• Valve spring

• Piston ring

• Pushrod

What is the primary function of the fuel injection system in an engine?

• To lubricate engine parts

• To supply air to the combustion chamber

• To deliver fuel into the combustion chamber

• To cool the engine

Which of the following is a common type of fuel injector used in modern engines?

• Carburetor

• Throttle body injector

• Direct injector

• Exhaust injector

What is the role of the crankshaft in an engine?

• To open and close the intake and exhaust valves

• To convert the linear motion of pistons into rotational motion

• To inject fuel into the combustion chamber

• To cool the engine

Which of the following components helps in reducing friction between the piston and cylinder wall?

• Camshaft

• Piston rings

• Fuel injector

• Valve spring

In a typical internal combustion engine, what is the relationship between the camshaft and crankshaft rotations?

• The camshaft rotates twice for every crankshaft rotation

• The camshaft rotates once for every crankshaft rotation

• The camshaft rotates once for every two crankshaft rotations

• The camshaft rotates four times for every crankshaft rotation