| 1 |
Which statement of the following is false for primary memory? |
- A. The base of primary memory is electronics
- B. This is a random access memory
- C. It gets lost when computer switches off
- D. It is built on laser technology
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| 2 |
<p class="MsoNormal">which can be used to distinguish between insulators and
conductors:<o:p></o:p></p> |
- A. <p class="MsoNormal">electricity<o:p></o:p></p>
- B. <p class="MsoNormal">telescope<o:p></o:p></p>
- C. <p class="MsoNormal">temperature<o:p></o:p></p>
- D. <p class="MsoNormal">electroscope<o:p></o:p></p>
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| 3 |
The closed switch in Boolean expression is represented by: |
|
| 4 |
Electric field lines: |
- A. always cross each other
- B. never cross each other
- C. cross each other inthe region of strong field
- D. cross each other in the region of weak field
|
| 5 |
In D.C.motor split rings are made of: |
- A. Steel
- B. Carbon
- C. Copper
- D. Iron
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| 6 |
<p class="MsoNormal">A large ripple tank with a vibrator working at a frequency
of 30 Hz produces 25 complete waves in a distance of 50 cm.<o:p></o:p></p><p class="MsoNormal">The velocity of the wave is:<o:p></o:p></p> |
- A. <p class="MsoNormal">53 cms<sup>-1<o:p></o:p></sup></p>
- B. <p class="MsoNormal">60 cms<sup>-1</sup><o:p></o:p></p>
- C. <p class="MsoNormal">750 cms<sup>-1</sup><o:p></o:p></p>
- D. <p class="MsoNormal">1500cms<sup>-1</sup><o:p></o:p></p>
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| 7 |
Joule's law is W = ____________________ |
- A. IR/t
- B. IRt<sup>2</sup>
- C. IR<sup>2</sup>t
- D. I<sup>2</sup>Rt
|
| 8 |
When 1 tonne of coal is burnt then amount of energy is released . |
- A. 36 x 10<sup>8</sup> J
- B. 36 x 10<sup>9</sup>J
- C. 36 J
- D. 36 x 10<sup>10</sup>J
|
| 9 |
Which of the following is not Processing? |
- A. arranging
- B. manipulation
- C. calculating
- D. gathering
|
| 10 |
1 GB = ______________ Megabytes. |
- A. 1022
- B. 1023
- C. 1024
- D. 1025
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