| 1 |
Diodes are used to. |
- A. Convert A.C. into D.C
- B. Convert D.C into A.C
- C. Store Charge
- D. Change voltage
|
| 2 |
in binary system. 37 is written as. |
- A. 101101
- B. 100101
- C. 110011
- D. 101011
|
| 3 |
Electric signal is converted into digital signal by. |
- A. Key board
- B. Monitor
- C. Scanner
- D. Modem
|
| 4 |
Digital singles are represented by; |
- A. zero and 1
- B. zero and 10
- C. 1 and 2
- D. o and 9
|
| 5 |
The substances through which current can pass easily are called: |
- A. conductors
- B. insulators
- C. Semi - conductors
- D. Non - Electrolytes
|
| 6 |
In P-type semi -conductior, most of the current is due to. |
- A. Free electron
- B. Holes
- C. Positive ions
- D. Heat
|
| 7 |
Hovering satellite completes its rotation in 24 hours at the height of: |
- A. 360 km
- B. 3600 km
- C. 36000 km
- D. 360000 km
|
| 8 |
Word FAX is short form of. |
- A. Facsiline
- B. Facsimile
- C. Fasimile
- D. None of these
|
| 9 |
Which of the following is used as rectifier; |
- A. semi - conductor diode
- B. resistors
- C. capacitors
- D. Germanium
|
| 10 |
Which disk consisting of metal plates for recording. |
- A. Floopy
- B. RAM
- C. HARD
- D. CD
|
