Intake System Quiz

What is the greatest restriction in the intake system?

• Pistons

• Valves

• Fuel injectors

• Air filters

What component in the valve operating mechanism is responsible for transferring motion from the camshaft to the rocker arm?

• Camshaft

• Push rod

• Rocker arm

• Valve lifter

What does DOHC stand for in the context of valve operating mechanisms?

• Dual Overhead Camshaft

• Direct Overhead Camshaft

• Drained Overhead Camshaft

• Dynamic Overhead Camshaft

What is the primary function of camshafts in an engine?

• To increase fuel efficiency

• To open and close the engine valves

• To cool the engine

• To reduce emissions

What is the purpose of valve timing in an engine?

• To control the opening and closing of the engine valves

• To measure the engine temperature

• To adjust the fuel mixture

• To regulate the engine speed

At what degree AFTER TDC does the exhaust valve close according to the diagram?

• 6°

• 9°

• 40°

• 31°

What is the term used to describe the condition when the inlet and exhaust valves are slightly open at the same time?

• Valve overlap

• Valve clearance

• Valve timing

• Valve lift

Which component is labeled as the part where the valve rests when closed?

• Valve seat

• Valve insert

• Cylinder head gasket

• Valve spring

What is the gap between the valve and its operating mechanism known as?

• Valve timing

• Valve clearance

• Valve lift

• Valve duration

Why is valve clearance necessary?

• To increase engine power

• To reduce fuel consumption

• Due to expansion of engine parts from heat

• To improve exhaust emissions