Technical Skills Quiz

What happens to piston rings when a piston is removed?

• They shrink

• They remain unchanged

• They spring open slightly

• They melt

Why is it important to select the correct size head gasket?

• To increase engine speed.

• To prevent the piston from hitting the cylinder head.

• To reduce fuel consumption.

• To enhance engine noise.

What can the method of measuring piston protrusion also be used for?

• Measuring engine temperature.

• Measuring fuel efficiency.

• Measuring a bent connecting rod.

• Measuring oil levels.

What is used in engines to allow crankshaft movement and prevent seizing?

• Ball bearings

• Thrust bearings

• Roller bearings

• Needle bearings

What is the purpose of thrust bearings in an engine?

• To increase speed

• To allow movement

• To reduce noise

• To increase power

What direction can the crankshaft move due to thrust bearings?

• Up and down

• Left and right

• Forwards and backwards

• In and out

What is the main topic of the document?

• Crankshaft end-float

• Engine cooling

• Fuel efficiency

• Engine noise

Why is it important to allow crankshaft movement in an engine?

• To increase fuel efficiency

• To prevent seizing

• To reduce emissions

• To enhance sound

What happens if a crankshaft seizes up?

• It stops moving

• It speeds up

• It becomes quieter

• It cools down

What is the role of a DTI gauge in measuring crankshaft end-float?

• To measure temperature

• To measure movement

• To measure pressure

• To measure speed