Internal Combustion Engines Quiz

What are the four essential functions of a four-stroke engine?

• Induction, Compression, Power, Exhaust

• Induction, Expansion, Power, Exhaust

• Inlet, Compression, Power, Exhaust

• Inlet, Expansion, Power, Exhaust

Name THREE purposes of the piston in an engine?

• To draw the fuel-air mixture into the combustion chamber

• To compress the fuel-air mixture into the combustion chamber

• To ignite the fuel-air mixture

• To help expel the burned gases from the engine

What is the function of piston rings?

• To provide a gas tight seal and prevent fuel leakage and contamination of oil

• To cool the piston by transferring heat

• To connect the piston to the crankshaft

• To convert reciprocating motion into rotary movement

What connects the pistons to the crankshaft?

• Connecting rods

• Wrist pins

• Main bearings

• Seals

What is the role of the crankshaft in an engine?

• To convert reciprocating motion into rotary movement

• To prevent oil leakage

• To support the crankshaft

• To provide low-friction resistance

What type of bearings are used in two-stroke engines?

• Roller bearings

• Plain bearings

• Anti-friction bearings

• Moving bearings

What is the purpose of seals in an engine?

• To prevent oil leakage

• To support the crankshaft

• To convert reciprocating motion into rotary movement

• To provide low-friction resistance

What do roller bearings contain?

• Moving elements (rollers)

• Fixed elements (rollers)

• Lubricant source

• Metal components (ball bearings)

What do plain bearings provide support to?

• The crankshaft

• A reciprocating piston

• The Combustion chamber

• The Transmission

What is the primary purpose of the engine?

• To transform chemical energy into mechanical energy

• To convert reciprocating motion into rotary movement

• To prevent oil leakage

• To support the crankshaft