Apprenticeship Training Mechanical Engineer Interview Questions and Answers for Freshers

Anti-lock braking system (ABS) prevents wheels from locking up during braking, allowing driver to maintain steering control.

• ABS uses sensors to monitor wheel speed

• If a wheel is about to lock up, ABS modulates brake pressure to that wheel

• This prevents skidding and allows driver to steer while braking

• ABS is especially useful in slippery conditions like rain or snow

NPSH pump calculation is used to determine the minimum pressure required at the suction of a pump to prevent cavitation.

• NPSH stands for Net Positive Suction Head

• It is calculated by subtracting the vapor pressure of the fluid from the absolute pressure at the suction of the pump

• If the NPSH available is less than the NPSH required, cavitation can occur which can damage the pump and decrease its efficiency

Different types of brakes used in mechanical engineering.

• Mechanical brakes: rely on friction to slow or stop motion, such as disc brakes or drum brakes.

• Hydraulic brakes: use fluid pressure to apply force, commonly found in vehicles like cars and motorcycles.

• Electromagnetic brakes: use electromagnetic force to slow or stop motion, often used in industrial machinery.

• Regenerative brakes: convert kinetic energy into another form of energy, commonly used in hybrid and electric veh...read more