Vikarsh Nano Technology And Alloys Junior Tester Interview Questions and Answers

The direction of motor start depends on the type of motor and its wiring.

• Single-phase AC motors start in one direction and can be reversed by swapping the connections of the start winding.

• Three-phase AC motors can start in either direction depending on the phase sequence of the power supply.

• DC motors can be designed to start in either direction by reversing the polarity of the power supply.

• Some motors have built-in mec...read more

Staircase wiring is a type of electrical wiring where a single light is controlled from two or more different places.

• Staircase wiring is commonly used in multi-story buildings.

• It involves two switches, one at the bottom and one at the top of the stairs.

• The switches are connected in parallel to the light bulb.

• When either switch is turned on, the light will turn on.

• If the light is on and the other switch is turned on, th