Electrical Technology Quiz-1

Question 1

Quality factor is also known as ___

Accepted Answer

Voltage magnification

Answer

Current magnification

Answer

Resistance magnification

Answer

Impedance magnification

Question 2

Efficiency of a transformer is maximum at

Accepted Answer

Unity power factor

Answer

Leading power factor

Answer

Lagging power factor

Answer

None of these

Question 3

The starting torque of a capacitor start motor is

Accepted Answer

same as rated torque

Answer

zero

Answer

low

Answer

more than rated torque.

Question 4

What will happen if DC shunt motor is connected across AC supply?

Accepted Answer

Burn due to heat produced in the field winding

Answer

Will run at normal speed

Answer

Will not run

Answer

Will Run at lower speed

Question 5

A good heating element should have

Accepted Answer

High resistivity and high melting point

Answer

High resistivity and low melting point

Answer

Low resistivity and high melting point

Answer

Low resistivity and low melting point

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