Marine Electrical MCQ

The full torque electric brake on an electric cargo winch functions to.A. act as a backup brake in the event the...

Ammeter

What is an Ammeter ? An Ammeter is an Electronic Device or an Instrument Which is used to measure...

What is colour code of resistors ?

What is colour code of resistors , Please explain ? Colours to denote value. In four band colour coding, the first band indicates the first digit,...

How can the direction of rotation of an AC motor be reversed?

How can the direction of rotation of an AC motor be reversed? By interchanging any two supply lines.

What can be possible reasons for a motor failing to start?

What can be possible reasons for a motor failing to start? No power , Fuse blown Overload trip contactor coil burnt Contactors contacts bad control circuit relay fault stop switch open...

Difference between lead acid and nickel-cadmium batteries

difference between lead acid and nickel cadmium batteries Difference Between difference between lead acid and nickel cadmium batteries are Following :- If you have any Query...

Safety Precautions Working on Electrical Equipment

What are the safety precautions when working on electrical equipments? 1. Switch off power 2.wear proper protective clothing 3. safety shoes 4. Notice board : Do not switch...

Residual Magnetism

What is called Residual Magnetism ? Residual magnetism is defined as the amount of magnetization left behind after the outside magnetic field has been removed...

Fleming’s Right Hand Rule

What is Fleming's Right Hand Rule ? Fleming’s Left Hand Rule is Rule for Finding the Direction Of Rotation of an Electric motor. It show the...

Fleming’s Left Hand Rule

What is Fleming's Left Hand Rule ? Fleming's Left Hand Rule is Rule for Finding the Direction Of Rotation of an Electric motor. It show the...