Cylinder Head

What is the purpose of the camshaft?

• Open the valves

• Close the valves

• Open and close the valves

• Operate the pistons

What is the purpose of valve clearance?

• To ensure the valve closes after heat expansion

• To ensure the valve remains open after heat expansion

• To ensure the valve closes during engine cool down

• to ensure the valve remains open during engine cool down

Which statement is correct

• The intake valve is larger than the exhaust valve

• The intake valve is smaller than the exhaust valve

• Both intake and exhaust valves are the same size

• The exhaust valve is larger than the intake valve

How is valve clearance achieved in older engines?

• By a hydraulic adjuster

• By manually adjustment

• They cannot be adjusted

• By a pneumatic adjuster

How is the valve clearance adjusted on modern vehicles?

• By manual adjustment

• By automatic hydraulic adjustment

• By automatic pneumatic adjustment

• By automatic mechanical adjustment

What is meant by the term 'clearance volume'?

• It is the total volume of the cylinder bore

• It is the volume of the cylinder between TDC and BDC

• It is the volume of the cylinder between TDC and the top of the bore

• It is the volume of the valve clearance

How is the total engine volume calculated?

• Add swept volume and clearance volume

• Multiply clearance volume by the number of cylinders

• Multiply swept volume by the number of cylinders

• Multiply total cylinder volume by the number of cylinders

What is meant by the term 'Swept Volume'?

• Its is the total volume of the cylinder

• It is the volume of the cylinder between TDC and the top of the bore

• It is the volume of the cylinder between TDC and BDC

• It is the volume of the valve clearance

What metal is commonly used to construct the cylinder head?

• Cast Iron

• Bronze

• Silver

• Aluminum

State the engine size if it had 4 cylinders and each cylinder had a swept volume of 400cm³ and a clearance volume of 100cm³

• 2000cm³ or 2.0 Litre

• 500cm³ or 0.5 Litre

• 1600cm³ or 1.6 Litre

• 2500cm³ or 2.5 Litre