HVF Avadi Apprentice Interview Questions and Answers

A rectifier is an electrical device that converts alternating current (AC) to direct current (DC).

• Rectifiers are commonly used in power supplies to convert AC voltage to DC voltage.

• They are made up of diodes, which allow current to flow in only one direction.

• Rectifiers can be half-wave or full-wave, depending on the type of diode configuration used.

• Examples of rectifiers include bridge rectifiers, vacuum tube rectifier

Rectifier is a device that converts alternating current (AC) to direct current (DC) and can be half or full wave.

• A rectifier is an electrical device that converts AC to DC.

• A half-wave rectifier only allows one half of the AC waveform to pass through, resulting in pulsating DC.

• A full-wave rectifier allows both halves of the AC waveform to pass through, resulting in smoother DC.

• Rectifiers are commonly used in power suppl...read more

A 220/132/33 KV substation is a facility that transforms high voltage electricity to lower voltages for distribution.

• A substation is an integral part of an electrical power system.

• The numbers 220, 132, and 33 KV represent the voltage levels at different stages of transformation.

• The substation receives electricity from a higher voltage transmission line and steps it down to lower voltages for distribution to consumers.

• I...read more

INS stands for Inertial Navigation System.

• INS is a navigation system that uses a combination of accelerometers and gyroscopes to determine the position, orientation, and velocity of a moving object.

• It is commonly used in aircraft, spacecraft, ships, and submarines to provide continuous navigation information.

• INS can operate independently of external references, making it useful in situations where GPS signals are unava...read more