Haier Appliances India Technician Interview Questions and Answers

The main components of a transformer include the core, windings, and insulation.

• Core: Provides a path for the magnetic flux and is usually made of laminated steel.

• Windings: Consist of primary and secondary coils of wire wrapped around the core.

• Insulation: Prevents short circuits between the windings and ensures electrical safety.

• Examples: Core - laminated steel, Windings - copper wire, Insulation - varnish or paper

Cooling of transformers is essential to maintain optimal operating temperature and prevent overheating.

• Cooling methods include natural convection, forced air, oil-immersed cooling, and water-cooled systems

• Cooling fins or radiators are often used to increase surface area for heat dissipation

• Monitoring temperature and using cooling fans or pumps can help regulate transformer temperature

• Proper maintenance and regular insp...read more

I have performed a variety of service work including troubleshooting, repairs, installations, and maintenance.

• Troubleshooting electrical systems

• Repairing HVAC units

• Installing new plumbing fixtures

• Performing routine maintenance on machinery

• Calibrating equipment for optimal performance

Refrigeration is the process of removing heat from a space to lower its temperature.

• Refrigerant absorbs heat from the space to be cooled

• The refrigerant then goes through a compressor to increase its pressure and temperature

• The hot refrigerant releases heat to the outside air through condenser coils

• The refrigerant then goes through an expansion valve to lower its pressure and temperature

• The cold refrigerant absorbs heat...read more

I am a technician with expertise in refrigeration cycles, AC blower issues, suction line icing, and grill temperature.

• Refrigeration cycle is a process in which refrigerant absorbs heat from the indoor air and releases it outside to cool the indoor space.

• AC blower running very slow could indicate a problem with the motor or a clogged air filter.

• AC suction line icing may be caused by low refrigerant levels, restricted ai...read more

Gas change refers to the process of altering the composition of gases in a specific environment.

• Gas change can occur through processes such as diffusion, ventilation, and respiration.

• Examples include the exchange of oxygen and carbon dioxide in the lungs during breathing.

• Gas change is essential for maintaining proper gas levels in the body and the environment.

The installation system is a method or process used to set up and configure software or hardware on a computer or device.

• It involves following specific steps or instructions to properly install the software or hardware.

• Some installation systems may require the user to input certain information or make selections during the process.

• Examples include Windows Installer, Linux package managers like apt or yum, and installat