Bmr Hvac Project Engineer Interview Questions and Answers

Heat load calculation is done by determining the amount of heat energy required to maintain a desired temperature in a given space.

• Determine the size of the space in square feet

• Determine the desired temperature for the space

• Determine the insulation value of the walls, ceiling, and floor

• Determine the number of windows and doors and their insulation value

• Calculate the heat loss through the walls, ceiling, floor, windows,...read more

FCU stands for Fan Coil Unit. There are two types of FCU - Horizontal and Vertical.

• Horizontal FCU: mounted on the ceiling or floor, air is discharged horizontally

• Vertical FCU: mounted on the wall, air is discharged vertically

• Other types include cassette FCU, concealed FCU, and floor-standing FCU

• FCUs are used for heating, cooling, and ventilation in buildings

VRV system is a type of HVAC system that uses a single outdoor unit to control multiple indoor units.

• VRV stands for Variable Refrigerant Volume

• It uses a refrigerant to transfer heat between the indoor and outdoor units

• Each indoor unit can be controlled independently for temperature and air flow

• It is energy efficient and can save on utility costs

• Examples of VRV system brands include Daikin, Mitsubishi, and LG

MCB components are typically made of materials such as copper, silver, thermoplastics, and ceramics.

• Copper is commonly used for conducting electricity in MCBs.

• Silver is sometimes used as a contact material for better conductivity.

• Thermoplastics like polyamide are used for insulation and housing of MCB components.

• Ceramics are used for arc chutes to extinguish the arc when the MCB trips.

• Other materials like steel, brass,...read more