| 1 |
Operation " 2+3" in computer performed by. |
- A. CU
- B. CPU
- C. ALU
- D. None of these
|
| 2 |
the number of (101)<sub>10</sub> in decimal is equal to .......... inbinary. |
- A. 0101111
- B. 0000101
- C. 10101101
- D. 1100101
|
| 3 |
Which of the following is an input device: |
- A. key board
- B. printer
- C. monitor
- D. CPU
|
| 4 |
Electric signal is converted into digital signal by. |
- A. Key board
- B. Monitor
- C. Scanner
- D. Modem
|
| 5 |
in binary system. 37 is written as. |
- A. 101101
- B. 100101
- C. 110011
- D. 101011
|
| 6 |
Which of the following are electromagnetic waves: |
- A. sound
- B. water waves
- C. Ultrasound
- D. light
|
| 7 |
Revolutionary charges have occur in last ............. years. |
|
| 8 |
In Pure -semi conductors no free electrons are available to conduct electric current at. |
- A. Ordinary temperature
- B. Low temperature
- C. High temperature
- D. None of these
|
| 9 |
The deficiency of elctrons in outermost shell of silicon atom is called. |
- A. Valent shell hole
- B. Doping
- C. Hole
- D. None of these
|
| 10 |
The substances through which current can pass easily are called: |
- A. conductors
- B. insulators
- C. Semi - conductors
- D. Non - Electrolytes
|
