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electrical

Total questions: 20

Worksheet time: 11mins

Name
Class
Date
1.

WHAT IS THE MAIN FORMULA FOR OHMS LAW?

a)

R = IV

b)

E = I/R

c)

E = IR

d)

NONE

2.

WHAT IS RESPONSIBLE FOR THE CURRENT TO FLOW?

a)

PROTONS

b)

ELECTRONS

c)

NUCLEUS

d)

BOTH A & B

3.

HOW MANY DIRECTIONS CAN ELECTRIC FIELD AT A POINT HAVE?

a)

ZERO

b)

ONE

c)

TWO

d)

MANY

4.

WHICH OF THE FOLLOWING ELEMENTS OF ELECTRICAL ENGINEERING CANNOT BE ANALYZED USING OHMS LAW?

a)

CAPACITORS

b)

INDUCTORS

c)

RESISTANCE

d)

TRANSISTORS

5.

THE MINIMUM DIELECTRIC STRESS IN A CABLE IS AT?

a)

ARMOUR

b)

BEDDING

c)

CONDUCTOR SURFACE

d)

LEAD SHEATH

6.

DIELECTRIC STRENGTH OF RUBBER IS AROUND?

a)

5 KV/MM

b)

15 KV/MM

c)

30 KV/MM

d)

200 KV/MM

7.

SIZE OF EARTH WIRE IS BASED ON

a)

MAX FAULT CURRENT CARRYING THROUGH GROUND WIRE

b)

RATED CURRENT CARRYING CAPACITY OF THE SERVICE LINE

c)

DEPENDS ON SOIL RESISTANCE

d)

BOTH A & B

8.

MOISTURE CONTENT IN THE SOIL ______ THE EARTH SOIL RESISTANCE

a)

INCREASE

b)

DECREASE

c)

DOESNT EFFECT

d)

NONE

9.

LAMINATIONS OF CORE ARE GENERALLY MADE UP OF

a)

CASE IRON

b)

CARBON

c)

SILICON STEEL

d)

STAINLESS STEEL

10.

HOW MANY TYPES OF CURRENTS IN ELECTRICAL

a)

1

b)

2

c)

3

d)

MANY

11.

WHAT ARE THE SOURCES OF ELECTRICITY?

a)

BATTERY

b)

GENERATOR

c)

THERMOCOUPLE

d)

ALL THE ABOVE

12.

WHERE IS DC USED?

a)

HOUSE HOLD

b)

FANS

c)

RADIO

d)

BATTERY CHARGING

13.

HOW MANY TYPES OF SEMI CONDUCTORS ARE THERE?

a)

0

b)

1

c)

2

d)

MANY

14.

CAN YOU APPLY OHMS LAW TO ALL TYPES OF ELECTRICAL CONDUCTOR?

a)

YES

b)

NO

c)

BASED ON FLOW

d)

NONE

15.

WHAT ARE THE COMBINATIONS OF RESISTANCES?

a)

SERIES

b)

PARALLEL

c)

SERIES PARALLEL

d)

ALL THE ABOVE

16.

TRANSFORMER RATING IS IN ?

a)

KVA

b)

KW

c)

KWA

d)

NONE

17.

INPUT POWER = OUTPUT POWER IS CALLED AS_____TRANSFORMER

a)

PRIMARY

b)

SECONDARY

c)

IDEAL

d)

NONE

18.

COPPER LOSSES IS ALSO KNOWN AS

a)

CORE

b)

EDDY CURRENT

c)

WINDING RESISTANCE

d)

IRON

19.

IN WHICH CIRCUIT THE PROPERTIES CAN CHANGE WITH DIRECTION OF I & V

a)

UNILATERAL

b)

BILATERAL

c)

BOTH A & B

d)

NONE

20.

IN THERMAL PLANT ; THE FUNCTION OF ECONOMIZER IS TO

a)

HEAT STEAM FROM BOILER

b)

HEAT FEED WATER USING FLUE GAS

c)

HEAT AIRFUEL MIXTURE

d)

HEAT STEAM TAKEN FROM TURBINE OUTLETS