Project Engineer MEP Interview Questions and Answers

The procedure for lift installation involves several steps including site preparation, equipment delivery, installation of guide rails and car frame, electrical and mechanical connections, and testing.

• Site preparation including excavation and foundation work

• Delivery of equipment including guide rails, car frame, and lift machinery

• Installation of guide rails and car frame

• Electrical and mechanical connections including wiring and control systems

• Testing and commissioning of the ...read more

The capacity of the 1 MLD water treatment plant is 1 million liters per day.

• The capacity of the water treatment plant is measured in terms of the volume of water it can treat per day.

• MLD stands for Million Liters per Day.

• In this case, the 1 MLD water treatment plant has a capacity to treat 1 million liters of water per day.

Safety devices on transformers protect against overloading and overheating.

• Safety devices include fuses, circuit breakers, and thermal protectors.

• Fuses are designed to melt and break the circuit when the current exceeds a certain level.

• Circuit breakers trip and open the circuit when the current exceeds a certain level.

• Thermal protectors sense the temperature and disconnect the transformer when it exceeds a certain level.

• These devices prevent damage to the transformer and ensu...read more

Verify contractor bill by checking quantities, rates, and work done.

• Check quantities of materials used

• Verify rates charged for each item

• Ensure work done matches the bill

• Compare bill with contract terms

• Check for any discrepancies or errors

• Request supporting documents if necessary

Conductor load carrying capacity refers to the maximum amount of electrical current that a conductor can safely carry without overheating or causing damage.

• The load carrying capacity of a conductor depends on its size, material, and insulation.

• The National Electrical Code (NEC) provides tables and formulas to calculate the maximum current a conductor can carry.

• Factors such as ambient temperature, installation method, and voltage drop also affect the load carrying capacity of ...read more

The height of a washbasin should be between 800mm to 850mm from the finished floor level.

• The height of the washbasin should be comfortable for the user to use.

• It should be installed at a height that allows for easy access to the faucet and drain.

• The height should also be appropriate for the type of users, such as children or wheelchair users.

• The height can vary depending on the type of washbasin and the location of installation.

• The height should be considered in relation to t...read more

Chillers are used in HVAC systems to cool air or water by removing heat through a vapor-compression or absorption refrigeration cycle.

• Chillers can be classified based on the type of compressor used, such as centrifugal, reciprocating, screw, or scroll compressors.

• Another classification is based on the type of condenser, such as air-cooled or water-cooled chillers.

• Chillers can also be categorized based on the refrigerant used, such as R-134a, R-410A, or ammonia.

• Some examples o...read more