Heavy Engineering Industries & Shipbuilding Mechanical Supervisor Interview Questions and Answers for Experienced

HVAC Supervisor oversees installation, maintenance, and repair of heating, ventilation, and air conditioning systems.

• Supervising HVAC technicians and contractors

• Ensuring compliance with safety regulations and company policies

• Developing maintenance schedules and overseeing repairs

• Troubleshooting HVAC systems and resolving issues

• Training staff on proper HVAC procedures

• Ordering necessary parts and equipment

• Maintaining acc

HVAC system stands for Heating, Ventilation, and Air Conditioning system, used to control the temperature, humidity, and air quality in buildings.

• HVAC system controls temperature, humidity, and air quality in buildings

• It includes components like furnaces, air conditioners, heat pumps, and ductwork

• Regular maintenance is important for efficient operation

• Examples of HVAC systems include central air conditioning units and

A heat exchanger is a device used to transfer heat between two or more fluids, typically to cool or heat a process.

• Heat exchangers can be found in HVAC systems, refrigerators, and industrial processes.

• They work by allowing heat to transfer from one fluid to another without the fluids mixing.

• Common types include shell and tube, plate, and finned tube heat exchangers.

District cooling system is a centralized system that provides chilled water for air conditioning to multiple buildings in a district.

• Centralized system for providing chilled water for air conditioning

• Serves multiple buildings in a district

• Reduces energy consumption and environmental impact

• Examples: Dubai District Cooling System, Singapore District Cooling System

Water cooled chiller is a mechanical device used to remove heat from a liquid via a vapor-compression or absorption refrigeration cycle.

• Removes heat from a liquid through a refrigeration cycle

• Used to cool water for air conditioning systems

• Helps maintain a consistent temperature in a building or industrial process

• Commonly used in large commercial buildings, hospitals, and industrial facilities

Approach temperature in a chiller is the temperature difference between the refrigerant leaving the evaporator and the water entering the condenser.

• Approach temperature is a key parameter in determining the efficiency of a chiller system.

• It is calculated by subtracting the entering water temperature of the condenser from the leaving refrigerant temperature of the evaporator.

• A lower approach temperature indicates better...read more