Patanjali Foods Senior Engineer- Maintenance Interview Questions and Answers

Erection and commissioning of a pneumatic compressor involves assembling the components, connecting the necessary piping, testing for functionality, and fine-tuning for optimal performance.

• Assemble the components of the pneumatic compressor according to the manufacturer's instructions.

• Connect the necessary piping for air intake, compression, and output.

• Test the compressor for functionality by running it empty and check...read more

Blowdown of cooling tower can be calculated using cycles of concentration. Maintenance practices include regular cleaning, inspection, and water treatment. Cooling tower capacity can be calculated based on heat load and design parameters.

• Calculate blowdown using cycles of concentration formula: Blowdown = Evaporation Loss / (Cycles of Concentration - 1)

• Maintenance practices include regular cleaning of cooling tower fil...read more

RCM stands for Reliability Centered Maintenance, a proactive maintenance strategy focused on identifying and preventing equipment failures.

• RCM is a systematic approach to maintenance planning that aims to optimize maintenance tasks to ensure equipment reliability.

• It involves analyzing the functions and potential failure modes of equipment to determine the most effective maintenance strategies.

• RCM prioritizes maintenanc...read more

Pumps can be classified based on their casings as follows: volute casing, axial split casing, and radial split casing.

• Volute casing pumps have a spiral-shaped casing that gradually expands to the discharge outlet.

• Axial split casing pumps have a casing split along the horizontal centerline of the pump.

• Radial split casing pumps have a casing split along the vertical centerline of the pump.

Air compressor works by compressing air to increase its pressure and decrease its volume.

• Air is drawn into the compressor through an intake valve.

• The air is then compressed using a piston or rotating impeller.

• Compressed air is stored in a tank or released directly for use.

• Examples of air compressors include reciprocating, rotary screw, and centrifugal compressors.

SMPS stands for Switched Mode Power Supply. It is a type of power supply that uses switching devices to convert electrical power efficiently.

• SMPS converts AC voltage to DC voltage through a series of switching components

• It is more efficient than traditional linear power supplies

• Commonly used in electronic devices like computers, TVs, and LED lights

• Helps regulate voltage and current to provide stable power output