Elements Electromech Interview Questions and Answers

Head definition of pump and meaning of cavitation in fire pump.

• Head definition of pump refers to the pressure or force that the pump can generate to move fluid.

• Cavitation in fire pump occurs when the pressure drops below the vapor pressure of the fluid, causing the formation of vapor bubbles that collapse and cause damage to the pump.

• Cavitation can lead to reduced pump performance, increased noise, and potential pump f...read more

The code used as per NFA for pump room is NFPA 20.

• NFPA 20 is the National Fire Protection Association code for the installation of stationary pumps for fire protection.

• It provides guidelines for the design, installation, and maintenance of fire pump systems in pump rooms.

• The code covers various aspects such as pump types, power sources, control systems, and testing requirements.

• Compliance with NFPA 20 ensures the safet...read more

The temperature required for a cover plate to melt depends on the material of the cover plate.

• The melting temperature of different materials varies.

• Common cover plate materials include plastic, metal, and glass.

• Plastic cover plates typically melt at temperatures around 150-200 degrees Celsius.

• Metal cover plates have higher melting points, ranging from 1000-1500 degrees Celsius.

• Glass cover plates have even higher meltin...read more

I possess extensive plumbing skills, including installation, repair, and maintenance of various systems.

• Expert in installing and repairing pipes, fixtures, and water systems in residential and commercial buildings.

• Proficient in troubleshooting plumbing issues, such as leaks, clogs, and pressure problems, ensuring quick resolutions.

• Experienced in reading blueprints and technical drawings to accurately plan plumbing layo...read more

Water system refers to the network of pipes, valves, and fixtures that supply and distribute water throughout a building or community.

• Water system includes pipes, valves, pumps, tanks, and fixtures that transport and distribute water.

• It can be used for drinking, washing, heating, cooling, and fire protection.

• Examples of water systems include municipal water supply systems, well water systems, and rainwater harvesting s...read more