Afras Hvac Supervisor Interview Questions and Answers

Electrical engineers are responsible for designing, developing, testing, and supervising the manufacturing of electrical equipment.

• Designing electrical systems and equipment

• Developing new technologies and products

• Testing equipment for safety and efficiency

• Supervising the manufacturing process

• Troubleshooting and repairing electrical equipment

Transformer vector group is a method used to represent the phase shift between the primary and secondary windings of a transformer.

• Transformer vector group indicates the relationship between the primary and secondary winding phases.

• It helps in determining the connection and phase shift of the transformer windings.

• Common vector groups include Yy0, Yd1, Dyn11, etc.

• Vector group is important for parallel operation of trans

VBD test is conducted in transformers to ensure insulation integrity and detect any potential faults.

• VBD test helps in identifying any weak spots in the insulation of the transformer

• It helps in preventing breakdowns and ensuring the safety and reliability of the transformer

• By conducting VBD test, any potential faults can be detected early and necessary maintenance can be carried out

• It is a standard procedure in transfo

HVAC stands for Heating, Ventilation, and Air Conditioning.

• HVAC stands for Heating, Ventilation, and Air Conditioning

• HVAC is responsible for maintaining indoor air quality and comfort

• HVAC systems include components like furnaces, air conditioners, and ventilation ducts

The fan coil unit (FCU) is full of water or condensate.

• Check for clogged drain lines or condensate pump failure.

• Inspect the drain pan for any leaks or cracks.

• Ensure the unit is properly leveled to allow for proper drainage.

• Check the air filter for any blockages that may be causing the unit to overflow.