Untitled Quiz

The frame of an induction motor is usually made of

• Silicon steel

• Cast iron

• Alluminium

• Bronze

The Shaft of an induction motor is made of

• High speed steel

• Stain less steel

• Carbon steel

• Cast iron

The Slip ring are usually made of

• Copper

• Carbon

• Phospor bronze

• Alluminium

The Starting torque of a squirrel cage induction motor is

• Low

• Negligible

• Same as full load toque

• Slighlty more than full load torque

The maximum torque in an induction motor depends on

• Frequency

• Rotor inductive reactance

• Square of supply voltage

• All of the above

An 3-Phase induction motor is

• Self Starting with zero torque

• Self Starting with high torque

• Self Starting with low torque

• NON Self Starting

A 3-phase slip ring motor has

• Double cage rotor

• Wound rotor

• Short circuited rotor

• Any of the above

The resistance of human body is around

• 5 ohms

• 25 ohms

• 250 ohms

• 1000 ohms

The S.I Units of power is

• Henry

• Coulomb

• Watt

• Watt-hour

Electric pressure is also called

• Resistance

• Power

• Voltage

• Energy