Electrical Engineering Quiz - SHAHEEN LEADERS ACADEMY PAKISTAN

Electricall Engineering Quiz

Welcome

to

Shaheen Leader Academy

We expect 100% result.

Click on Start Button.

Your time is Ended. Thanks

Electrical Engineering

Electrical Engineering Quiz

1 / 25

Which substances lose their electrical resistance completely:-

Dielectrics

Super cnductor

Semi conductor

2 / 25

The overall efficiency of a steam power station is _________________ its thermal efficiency:-

Equal to

Greater than

less than

3 / 25

Electrical lines of force about a negative charge are:-

Both a, b

Radial

Inward

4 / 25

Overhead telephone wires are made of:-

Steel

Aluminium

Copper

5 / 25

The modern steam turbines are :-

Reaction turbine

Impulse turbine

Both a, b

6 / 25

In case of double cage induction motor , the inner cage has high inductance arid low resistance:-

True

False

7 / 25

Steam power stations require space :-

Less than diesel power stations

More than diesel power stations

Equal to diesel power stations

8 / 25

Which material is suitable for the manufacture of armour in a single core cable:-

Magnetic material

Non magnetic and conducting material

Non magnetic and Non conducting material

9 / 25

The pulsating DC applied to power amplifier cause;-

Excessive forward voltage

Hum in the circuit

Burning the transistor

10 / 25

In equipment filled with liquid dielectric heat is transferred mainly by:-

Convection

Radiation

Conduction

11 / 25

No load on a transformer is a carried out to determine:-

Copper loss

Magnetism current and loss

Magnetism current

12 / 25

The transformer oil should have ______________volatility:-

Medium

Low

High

13 / 25

Which motor is usually used in household refrigerator:-

Single phase induction motor

Dc shunt motor

DC series motor

14 / 25

Low resistivity materials are used in _________:-

Transmission and distribution line

Transformer , generator winding

all of them

15 / 25

Why damping is provided in an instrument for ;-

Increasing the range

Both a,b

Reducing the settling time

16 / 25

For frequencies below resonant frequency , a series LC circuit behave as a _________________ load;-

Capacitive

Resistive'

Inductive

17 / 25

The switch board instrument should be mounted in vertical position:-

False

True

18 / 25

Mercury as an electric contact material is:-

A metal

A metal liquid

A liquid

19 / 25

If the applied voltage to a DC motor is 230 V then the back emf , for maximum power developed is :-

300 V

220 V

115 V

20 / 25

An SCR is a solid state equivalent of :-

Triode

Pentode

Gas filled triode

21 / 25

Due to which of the following factors the brush wear rate is altered:-

All of them

Speed of the machine

Contact pressure

22 / 25

For carbon resistor , darker color generally have values close to:-

23 / 25

The thickness of insulation provided on the conductor in the cable depends on _________- factor:-

Power factor

Operating voltage

Current to be carried

24 / 25

Which test is used to ascertain whether the battery plates are defective or not;-

Open volt test

High discharge test

Cadmium test

25 / 25

Non linearity caused by servomotor is due to;-

Saturation

Coulomb friction

Dead space

Your score is

Subscribe our Channel Here

Online Quizzes