H&M Interview Questions and Answers

Compressor servicing and maintenance involves regular cleaning, lubrication, and inspection of parts.

• Clean air filters and condenser coils regularly

• Check oil levels and replace if necessary

• Inspect belts, hoses, and electrical connections for wear and tear

• Schedule professional maintenance at least once a year

• Keep compressor in a clean, dry, and well-ventilated area

• Follow manufacturer's instructions for specific maintenance tasks

• Examples: Changing air filters, checking refriger...read more

Compressor components include a motor, compressor pump, pressure switch, pressure gauge, and air tank.

• Motor powers the compressor pump

• Compressor pump compresses air and sends it to the air tank

• Pressure switch turns the motor on and off based on the pressure in the tank

• Pressure gauge measures the pressure in the tank

• Air tank stores the compressed air for later use

Compressor part failure can be handled by identifying the root cause, replacing the faulty part, and conducting regular maintenance.

• Identify the root cause of the failure

• Replace the faulty part with a new one

• Conduct regular maintenance to prevent future failures

• Ensure proper lubrication and cooling of the compressor

• Monitor the compressor's performance and address any issues promptly

A compressor works by compressing air or gas to increase its pressure and decrease its volume.

• The compressor takes in air or gas and compresses it using a piston or rotor.

• The compressed air or gas is then stored in a tank or released through a valve.

• Different types of compressors include reciprocating, rotary screw, and centrifugal compressors.

• Compressors are used in various industries such as manufacturing, construction, and automotive.

• Regular maintenance and proper usage ar...read more

An open compressor has a motor that drives a piston to compress refrigerant gas, which is then released into the system.

• Open compressors are commonly used in large industrial refrigeration systems.

• They are less efficient than hermetic compressors, but are easier to maintain and repair.

• Open compressors require regular oil changes and inspections to ensure proper functioning.

• Examples of open compressors include reciprocating, screw, and scroll compressors.