| 1 |
The process of breaking a heavy nucleus after the bombardment of neutrons into two small nuclei is called: |
- A. Nuclear fission reaction
- B. Nuclear fusion reaction
- C. Nuclear Radiation
- D. Nuclear chain reaction
|
| 2 |
Safe limit of radiations exposure in one year. |
- A. 4 rem
- B. 5 rem
- C. 3 rem
- D. 6 rem
|
| 3 |
<p class="MsoNormal">The colour of live wire is:<o:p></o:p></p> |
- A. <p class="MsoNormal">Black or blue<o:p></o:p></p>
- B. <p class="MsoNormal">Green or yellow<o:p></o:p></p>
- C. <p class="MsoNormal">White or grey<o:p></o:p></p>
- D. <p class="MsoNormal">Red or brown<o:p></o:p></p>
|
| 4 |
<p class="MsoNormal">Total energy supplied in driving one coulomb of charge
around a complete circuit is called:<o:p></o:p></p> |
- A. <p class="MsoNormal">Potential<o:p></o:p></p>
- B. <p class="MsoNormal">Potential difference<o:p></o:p></p>
- C. <p class="MsoNormal">Electromotive force<o:p></o:p></p>
- D. <p class="MsoNormal">Potential energy<o:p></o:p></p>
|
| 5 |
When 1 kg of Uranium -235 is fused then energy released is |
- A. 67 x 10<sup>10</sup> J
- B. 67 x 10<sup>7</sup>J
- C. 67 J
- D. 7 J
|
| 6 |
<p class="MsoNormal">When we double the voltage in a simple electric circuit, we
double the:<o:p></o:p></p> |
- A. <p class="MsoNormal">Current<o:p></o:p></p>
- B. <p class="MsoNormal">Power<o:p></o:p></p>
- C. <p class="MsoNormal">Resistance<o:p></o:p></p>
- D. <p class="MsoNormal">Both a and b<o:p></o:p></p>
|
| 7 |
Radiations present in atmosphere due to the presence of different radioactive elements are: |
- A. Cosmic radiations
- B. Background radiations
- C. secondary radiations
- D. Electromagnetic radiations
|
| 8 |
<p class="MsoNormal">for which of following ampere second could be the unit:<o:p></o:p></p> |
- A. <p class="MsoNormal">energy<o:p></o:p></p>
- B. <p class="MsoNormal">current<o:p></o:p></p>
- C. <p class="MsoNormal">charge<o:p></o:p></p>
- D. <p class="MsoNormal">power<o:p></o:p></p>
|
| 9 |
<p class="MsoNormal">an additional wire used along with live and neutral wire is:<o:p></o:p></p> |
- A. <p class="MsoNormal">cable wire<o:p></o:p></p>
- B. <p class="MsoNormal">earth wire<o:p></o:p></p>
- C. <p class="MsoNormal">grip wire<o:p></o:p></p>
- D. <p class="MsoNormal">hot wire<o:p></o:p></p>
|
| 10 |
<p class="MsoNormal">What is the amount of current passing through an electric
heater, if it takes 1800C charge pass through it in 3 minute:<o:p></o:p></p> |
- A. <p class="MsoNormal">16 A<o:p></o:p></p>
- B. <p class="MsoNormal">10 A<o:p></o:p></p>
- C. <p class="MsoNormal">100 A<o:p></o:p></p>
- D. <p class="MsoNormal">0.1 A<o:p></o:p></p>
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