Efs Facilities Services Chiller Plant Operator Interview Questions and Answers

Parts of pumps and motors include impeller, casing, shaft, bearings, and seals.

• Impeller: Rotating component that generates the flow in a pump.

• Casing: Encloses and supports the impeller and other parts of the pump.

• Shaft: Transfers power from the motor to the impeller.

• Bearings: Support and align the shaft within the pump.

• Seals: Prevent leakage of fluid from the pump.

Parts of pumps and motors include impeller, casing, shaft, bearings, and motor housing.

• Impeller: Rotating component that generates the flow within the pump.

• Casing: Encloses the impeller and directs the flow of fluid through the pump.

• Shaft: Transfers the rotational energy from the motor to the impeller.

• Bearings: Support the shaft and reduce friction during rotation.

• Motor housing: Encloses the motor and provides protecti

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.

• Transformers are used to increase or decrease voltage levels in electrical circuits.

• They consist of two coils of wire, known as the primary and secondary coils.

• The primary coil is connected to a power source, while the secondary coil is connected to the load.

• The changing magnetic field i...read more

ACB stands for Air Circuit Breaker, which is a type of circuit breaker that operates in the air as an arc extinguishing medium.

• ACB is used to protect electrical circuits from overloads and short circuits by automatically disconnecting the power supply when a fault is detected.

• It consists of a set of contacts that open and close to interrupt the flow of current in the circuit.

• ACBs are commonly used in industrial and com...read more

DG Safety device is a safety device used to protect diesel generators from damage or malfunction.

• DG Safety device monitors parameters like temperature, oil pressure, and voltage to ensure safe operation.

• It can automatically shut down the generator in case of any abnormal readings to prevent damage.

• Examples of DG Safety devices include automatic voltage regulators, engine control modules, and temperature sensors.

Transformer safety refers to measures taken to prevent accidents and ensure the proper functioning of transformers.

• Regular maintenance checks to identify any potential issues

• Proper grounding to prevent electrical shocks

• Using protective equipment when working with transformers

• Following safety guidelines and protocols

• Installing safety devices such as pressure relief valves

• Training employees on safe handling and operation