Updater Services Electrician Interview Questions and Answers

To change a fan AC plug point, you will need to disconnect the old plug point, install a new one, and ensure proper wiring and grounding.

• Turn off the power supply to the fan before starting any work

• Remove the old AC plug point by disconnecting the wires and unscrewing it from the wall

• Install the new AC plug point by connecting the wires according to the manufacturer's instructions

• Ensure proper grounding of the plug poi...read more

Phase and neutral are two types of electrical conductors used in AC circuits.

• Phase is the conductor that carries the alternating current from the power source to the load.

• Neutral is the conductor that provides a return path for the current back to the power source.

• Phase is typically colored black, red, or brown, while neutral is colored white or gray.

• In a three-phase system, there are three phases and one neutral condu...read more

Resistance values are often color coded on resistors to easily identify their resistance value.

• Color coding is used on resistors to indicate their resistance value

• The colors represent numbers according to a specific color code chart

• The first two bands represent the first two digits of the resistance value, the third band represents the multiplier, and the fourth band represents the tolerance

• For example, a resistor with...read more

The symbol of a diode is an arrow pointing towards a line, representing the flow of current in one direction only.

• Arrow pointing towards a line

• Flow of current in one direction only