N R Agarwal Industries Interview Questions and Answers

An engine is a machine that converts fuel into mechanical energy to produce power.

• An engine typically consists of cylinders, pistons, valves, and a crankshaft.

• Engines can be classified into different types such as internal combustion engines, steam engines, and electric motors.

• Examples of engines include gasoline engines in cars, diesel engines in trucks, and jet engines in airplanes.

A clutch is a mechanical device used to connect and disconnect the power transmission between two rotating shafts.

• Clutches are commonly used in vehicles to engage and disengage the engine from the transmission to change gears.

• There are different types of clutches such as friction clutches, hydraulic clutches, and electromagnetic clutches.

• Clutches can be operated manually by the driver or automatically by the vehicle's ...read more

2 stroke engines have power strokes every revolution, while 4 stroke engines have power strokes every other revolution.

• 2 stroke engines have a simpler design with fewer moving parts compared to 4 stroke engines.

• 2 stroke engines require a fuel-oil mixture for lubrication, while 4 stroke engines have a separate oil reservoir.

• 2 stroke engines produce more pollution due to incomplete combustion, while 4 stroke engines are ...read more

Petrol engines use spark ignition, while diesel engines use compression ignition.

• Petrol engines use a spark plug to ignite the fuel-air mixture, while diesel engines rely on compression to ignite the fuel.

• Petrol engines are lighter and more responsive, while diesel engines are more fuel efficient and have higher torque.

• Petrol engines are typically used in cars and motorcycles, while diesel engines are commonly found in