| 1 |
Operation " 2+3" in computer performed by. |
- A. CU
- B. CPU
- C. ALU
- D. None of these
|
| 2 |
Word FAX is short form of. |
- A. Facsiline
- B. Facsimile
- C. Fasimile
- D. None of these
|
| 3 |
The substances through which current con not pass are called: |
- A. Semi - conductors
- B. Insulators
- C. conductors
- D. non - metal
|
| 4 |
In P-type semi -conductior, most of the current is due to. |
- A. Free electron
- B. Holes
- C. Positive ions
- D. Heat
|
| 5 |
The substances through which current can pass easily are called: |
- A. conductors
- B. insulators
- C. Semi - conductors
- D. Non - Electrolytes
|
| 6 |
The current flow from p-type semi conductors is due to. |
- A. Free electrons
- B. Valance electrons
- C. Doping
- D. Hole
|
| 7 |
The speed of radio wave is: |
- A. Light
- B. Air
- C. Sound
- D. Rocket
|
| 8 |
How many electrons Guns are used in colour T.V? |
- A. One
- B. Two
- C. Three
- D. Four
|
| 9 |
Digital singles are represented by; |
- A. zero and 1
- B. zero and 10
- C. 1 and 2
- D. o and 9
|
| 10 |
The deficiency of elctrons in outermost shell of silicon atom is called. |
- A. Valent shell hole
- B. Doping
- C. Hole
- D. None of these
|
