Interview Questions and Answers

HT line safety components are essential equipment used to ensure the safety of high tension power lines.

• Insulators: prevent current leakage and ensure the safety of the line

• Lightning arresters: protect the line from lightning strikes

• Earthing system: dissipates fault currents safely into the ground

• Surge arresters: protect equipment from voltage surges

• Isolators: used for isolating sections of the line for maintenance or repair

LT line safety components include fuses, circuit breakers, isolators, lightning arresters, and earthing systems.

• Fuses: protect against overcurrent by melting and breaking the circuit

• Circuit breakers: automatically trip to disconnect the circuit in case of overload or short circuit

• Isolators: physically disconnect the circuit for maintenance or repair

• Lightning arresters: protect against lightning strikes by diverting the current to the ground

• Earthing systems: provide a path for...read more

CT PT meters are devices used to measure current and voltage in electrical systems.

• CT stands for Current Transformer and PT stands for Potential Transformer

• CT meters are used to measure high currents by stepping down the current to a manageable level

• PT meters are used to measure high voltages by stepping down the voltage to a safe level

• CT PT meters are commonly used in power distribution systems to monitor and protect equipment

A meger test is a type of test conducted to check the insulation resistance of electrical equipment.

• Meger test is also known as insulation resistance test.

• It is used to determine the effectiveness of insulation in electrical equipment.

• The test involves applying a high voltage between the conductors and the ground to measure the resistance.

• The results of the test help in identifying any potential issues with the insulation that may lead to electrical faults or breakdowns.

• Regul...read more

DG test stands for Diesel Generator test, which is conducted to ensure the proper functioning of a diesel generator.

• DG test is conducted to check the performance and efficiency of a diesel generator.

• It involves testing various components such as engine, alternator, fuel system, cooling system, and electrical connections.

• The test includes checking parameters like voltage output, frequency, load capacity, and fuel consumption.

• Regular DG tests help in identifying any potential i...read more

The last undo shot key is used to reverse the last action taken in a computer program.

• The last undo shot key is typically 'Ctrl + Y' on Windows and 'Command + Shift + Z' on Mac.

• It is used to redo the last action that was undone using the undo shot key.

• It is a useful tool for quickly correcting mistakes or reverting changes in a program.

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