What is the main advantage of a 4-stroke engine over a 2-stroke engine?

• Higher power output

• Lower fuel consumption

• Simpler design

• Higher oil consumption

In a 2-stroke engine, how is the fuel-air mixture usually introduced into the combustion chamber?

• Through a carburetor

• Direct injection

• Through transfer ports

• Through intake valves

What is the primary purpose of the engine cooling system?

• To increase the engine's power output

• To maintain the engine at an optimal operating temperature

• To reduce the weight of the vehicle

• To improve fuel efficiency

What is the function of the thermostat in an engine cooling system?

• To regulate the flow of coolant through the engine

• To increase the coolant temperature

• To pump coolant through the system

• To add antifreeze to the coolant

How many types of engines are there on the basis of number of cylinders?

• 2

• 3

• 4

• 5

Which engine is better for day to day vehicle?

• Rotary

• Reciprocating

• Both

More number of cylinders will increase the fuel displacement.

• True

• False

• No effect

• Sometimes increases and Sometimes decreases

Which component is responsible for controlling the opening and closing of intake and exhaust valves?

• Crankshaft

• Piston

• Camshaft

• Connecting Rod

What part of the engine houses the crankshaft and holds oil to lubricate moving parts?

• Cylinder Block

• Oil Pan

• Cylinder Head

• Combustion Chamber

Which of the following components is responsible for delivering air to each cylinder from the throttle body?

• Mass airflow sensor

• Intake manifold

• Exhaust valve

• Camshaft