THE ENGINEERS DAY

What is the moving part of three phase motors called?

• Shaft

• Rotor

• Bearing

• Air Gap

The Term "UPS" stands for

• Uninterruptible Power System

• Uninterruptible Power Storage

• Uninterruptible Power Supply

• Uninterruptible Parallel Supply

All circuit conductors between the service equipment, the source of a separately derived system , or other power supply source and the final branch circuit overcurrent device is called

• Feeder

• Controller

• Raceway

• Receptable

What does the term "IP Rating" refer to in Electrical installations?

• Intellectual Property

• Initial Power

• Ingress Protection

• Interest Percentage

What is the difference between a fuse and a circuit breaker(CB)?

• Fuse can be used many times but CB only once.

• Fuse can be used only once , but CB can be used many times.

• Fuse and CB can use any number of times

• All of the above

Which one of the devices is not used for protection.

• RCD

• MCB

• FUSE

• SOCKET

Name the device that transfers electric energy from one circuit to another. It is frequently used, in electric power distribution, to step-up or step down the voltage and/or isolate one electric circuit to another.

• Generator

• Circuit Breaker

• Transformer

• Switchboard

What percentage of the current carrying capacity of aluminum is that of copper?

• 15%

• 30%

• 75%

• 23%

Which device is specifically designed to prevent electrical shocks?

• Transformer

• GFCI

• Capacitor

• Resistor

How is electricity made at a plant?

• Motor

• Generator

• Coil

• Wire