Question # 1

In P-type semi -conductior, most of the current is due to.

Choose an answer

Free electron

Holes

Positive ions

Heat

The number of hovering satellites which can send transmissions to all over the world:

Choose an answer

one

Two

Three

Four

Purose of electron gun in TV is to.

Choose an answer

Fire electron

Receive electron

Consume electron

Display picture

How many electrons Guns are used in colour T.V?

Choose an answer

One

Two

Three

Four

The substances through which current can pass easily are called:

Choose an answer

conductors

insulators

Semi - conductors

Non - Electrolytes

the number of (101)₁₀ in decimal is equal to .......... inbinary.

Choose an answer

0101111

0000101

10101101

1100101

analogue signal is recorded on.

Choose an answer

Magnetic tape

Floppy disk

Hard Disk

C.D

The examples of semi - conductors:

Choose an answer

sodium and potassium

calcium and potassium

Germanium and silicon

carbon and nitrogen

Which of the following is a brain of computer?

Choose an answer

Central processing unit

Mouse

Monitor

Hard disc

Diodes are used to.

Choose an answer

Convert A.C. into D.C

Convert D.C into A.C

Store Charge

Change voltage

Digital singles are represented by;

Choose an answer

zero and 1

zero and 10

1 and 2

o and 9

Which of the following is an input device:

Choose an answer

key board

printer

monitor

CPU

The elements used to increase the number of free electrons in the semi - conductor belong to:

Choose an answer

2^nd group

3^rd group

4^th group

5^th group

Electric signal is converted into digital signal by.

Choose an answer

Key board

Monitor

Scanner

Modem

The deficiency of elctrons in outermost shell of silicon atom is called.

Choose an answer

Valent shell hole

Doping

Hole

None of these

Operation " 2+3" in computer performed by.

Choose an answer

CU

CPU

ALU

None of these

English word "9" has been divided into ............ segments.

Choose an answer

5

6

7

8

The major function of electronic devices is to amplify the ........ signals.

Choose an answer

Stronge electric

Semi strong electric

Both a and c

weak electric

in binary system. 37 is written as.

Choose an answer

101101

100101

110011

101011

Word FAX is short form of.

Choose an answer

Facsiline

Facsimile

Fasimile

None of these

More Classes

Other Links

General Science 10th Class English Medium Chapter 9 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer