Apprenticeship Training Mechanical Engineer

Apprenticeship Training Mechanical Engineer Interview Questions and Answers for Freshers

Updated 27 Jul 2024

Q1. How to anti break system work.

Ans.

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

Q2. Npsh pump calculation

Ans.

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

Q3. Type of breaks.

Ans.

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

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