Munjal Castings Interview Questions and Answers

There are two types of smokes: first-hand smoke and second-hand smoke.

• First-hand smoke is the smoke inhaled directly from a cigarette or other tobacco product.

• Second-hand smoke is the smoke exhaled by a smoker or the smoke from the burning end of a cigarette.

• Second-hand smoke is also known as passive smoking and can be harmful to non-smokers.

• There are also different types of tobacco products that produce smoke, such as

Alternator is a device that converts mechanical energy into electrical energy.

• It is used in vehicles to charge the battery and power the electrical system.

• It works by using a magnetic field to generate an alternating current.

• The output voltage is regulated by a voltage regulator.

• It is an essential component of the vehicle's charging system.

• Examples of vehicles that use alternators include cars, trucks, and motorcycles.

Petrol and diesel engines differ in fuel type, combustion process, and efficiency.

• Fuel type: Petrol engines use gasoline while diesel engines use diesel fuel.

• Combustion process: Petrol engines use spark ignition while diesel engines use compression ignition.

• Efficiency: Diesel engines are generally more fuel-efficient than petrol engines.

• Examples: Petrol engine - used in most cars; Diesel engine - used in trucks and hea

The differential is a component in a vehicle that allows the wheels to rotate at different speeds.

• It helps with turning by allowing the outside wheel to rotate faster than the inside wheel.

• It also helps with traction by allowing the wheel with the most grip to receive more power.

• Without a differential, the wheels would be locked together and unable to rotate at different speeds.

• Examples of vehicles that use differentia

Defects in welding section can include porosity, lack of fusion, undercutting, and distortion.

• Porosity: Formation of small cavities or voids in the weld metal due to trapped gas.

• Lack of fusion: Incomplete bonding between the weld metal and base metal.

• Undercutting: Formation of groove-like depressions along the edges of the weld due to excessive heat or incorrect technique.

• Distortion: Deformation or warping of the welde