Maruti Suzuki Post Graduate Engineer Trainee Interview Questions and Answers

Engine mass affects vehicle performance, fuel efficiency, and handling.

• A heavier engine can negatively impact fuel efficiency as it requires more energy to move the vehicle.

• A lighter engine can improve handling and acceleration.

• Engine mass also affects weight distribution, which can impact stability and traction.

• Engine mass is particularly important in sports cars and racing vehicles where weight and performance are cr

The material used for piston is typically aluminum alloy or cast iron.

• Aluminum alloy is lightweight and has good thermal conductivity, making it suitable for high-performance engines.

• Cast iron is heavier but more durable and can withstand high temperatures and pressures.

• Other materials like steel, titanium, and ceramic are also used in specialized applications.

• The choice of material depends on factors like engine type,

Experimental analysis of vibration problems involves measuring and analyzing the vibration signals.

• Measure the vibration signals using accelerometers or other sensors

• Analyze the signals using signal processing techniques such as FFT, time-domain analysis, and modal analysis

• Identify the root cause of the vibration problem based on the analysis results

• Take corrective actions to eliminate or reduce the vibration problem

• Re...read more

Detonation is an abnormal combustion process that occurs in the engine cylinder.

• It happens when the air-fuel mixture in the cylinder explodes instead of burning smoothly.

• It can cause engine damage and reduce efficiency.

• It is more common in high-performance engines and can be prevented by using high-octane fuel.

• In diesel engines, it is also known as 'diesel knock' and occurs when the fuel ignites before it should due to...read more