| 1 |
in binary system. 37 is written as. |
101101
100101
110011
101011
|
| 2 |
Electric signal is converted into digital signal by. |
Key board
Monitor
Scanner
Modem
|
| 3 |
Diodes are used to. |
Convert A.C. into D.C
Convert D.C into A.C
Store Charge
Change voltage
|
| 4 |
In P-type semi -conductior, most of the current is due to. |
Free electron
Holes
Positive ions
Heat
|
| 5 |
Digital singles are represented by; |
zero and 1
zero and 10
1 and 2
o and 9
|
| 6 |
Which of the following is a brain of computer? |
Central processing unit
Mouse
Monitor
Hard disc
|
| 7 |
Which of the following is an input device: |
key board
printer
monitor
CPU
|
| 8 |
The number of hovering satellites which can send transmissions to all over the world: |
one
Two
Three
Four
|
| 9 |
Hovering satellite completes its rotation in 24 hours at the height of: |
360 km
3600 km
36000 km
360000 km
|
| 10 |
How many electrons Guns are used in colour T.V? |
One
Two
Three
Four
|
| 11 |
The frequency of the carrier waver used of radio transmission: |
30 KHZ
40 KHZ
50 KHZ
60 KHZ
|
| 12 |
The speed of radio wave is: |
Light
Air
Sound
Rocket
|
| 13 |
Which of the following are electromagnetic waves: |
sound
water waves
Ultrasound
light
|
| 14 |
Which of the following is used as rectifier; |
semi - conductor diode
resistors
capacitors
Germanium
|
| 15 |
Which element is used to make LED? |
Aluminum
Calcium
sodium
Arsenic
|
.gif)
Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
