Question # 1

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

Choose an answer

0101111

0000101

10101101

1100101

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

Choose an answer

5

6

7

8

Diodes are used to.

Choose an answer

Convert A.C. into D.C

Convert D.C into A.C

Store Charge

Change voltage

The current flow from p-type semi conductors is due to.

Choose an answer

Free electrons

Valance electrons

Doping

Hole

Which of the following is an input device:

Choose an answer

key board

printer

monitor

CPU

Which element is used to make LED?

Choose an answer

Aluminum

Calcium

sodium

Arsenic

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

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

Choose an answer

Free electron

Holes

Positive ions

Heat

in binary system. 37 is written as.

Choose an answer

101101

100101

110011

101011

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

Choose an answer

One

Two

Three

Four

analogue signal is recorded on.

Choose an answer

Magnetic tape

Floppy disk

Hard Disk

C.D

Which disk consisting of metal plates for recording.

Choose an answer

Floopy

RAM

HARD

CD

Who was the inventor of radio system.

Choose an answer

Grahm bell

F. Crick

Charles babbage

Marconi

Hovering satellite completes its rotation in 24 hours at the height of:

Choose an answer

360 km

3600 km

36000 km

360000 km

Revolutionary charges have occur in last ............. years.

Choose an answer

30

40

50

60

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

Choose an answer

one

Two

Three

Four

The numebr (100)16 in decimal is equal to............. in binary.

Choose an answer

1110100

01011101

1100100

1001001

The frequency of the carrier waver used of radio transmission:

Choose an answer

30 KHZ

40 KHZ

50 KHZ

60 KHZ

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

Electric signal is converted into digital signal by.

Choose an answer

Key board

Monitor

Scanner

Modem

More Classes

Other Links

10th Class General Science Unit 8 Biotechnology English Medium KPK Boards Online Mcqs 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