| 1 |
Digital singles are represented by; |
- A. zero and 1
- B. zero and 10
- C. 1 and 2
- D. o and 9
|
| 2 |
Which of the following is used as rectifier; |
- A. semi - conductor diode
- B. resistors
- C. capacitors
- D. Germanium
|
| 3 |
The frequency of the carrier waver used of radio transmission: |
- A. 30 KHZ
- B. 40 KHZ
- C. 50 KHZ
- D. 60 KHZ
|
| 4 |
The examples of semi - conductors: |
- A. sodium and potassium
- B. calcium and potassium
- C. Germanium and silicon
- D. carbon and nitrogen
|
| 5 |
Word"Computer" is derive from. |
- A. Machine
- B. Calculator
- C. Compute
- D. All of these
|
| 6 |
Which element is used to make LED? |
- A. Aluminum
- B. Calcium
- C. sodium
- D. Arsenic
|
| 7 |
Electric signal is converted into digital signal by. |
- A. Key board
- B. Monitor
- C. Scanner
- D. Modem
|
| 8 |
Hovering satellite completes its rotation in 24 hours at the height of: |
- A. 360 km
- B. 3600 km
- C. 36000 km
- D. 360000 km
|
| 9 |
The numebr (100)16 in decimal is equal to............. in binary. |
- A. 1110100
- B. 01011101
- C. 1100100
- D. <u>1001001</u>
|
| 10 |
Revolutionary charges have occur in last ............. years. |
|
