| 1 |
<p class="MsoNormal">The speed of sound in iron at 25°C is:<o:p></o:p></p> |
- A. <p class="MsoNormal">5950 m/sec<o:p></o:p></p>
- B. <p class="MsoNormal">5900 m/sec<o:p></o:p></p>
- C. <p class="MsoNormal">6950 m/sec<o:p></o:p></p>
- D. <p class="MsoNormal">6940 m/sec<o:p></o:p></p>
|
| 2 |
The output of a two input NOR gate is 1 when: |
- A. A is 1 and B is 0
- B. A is 0 and B IS 1
- C. Both A and B are 0
- D. Both A and B are 1
|
| 3 |
The sound level of rustling of leave is: |
- A. 1 dB
- B. 20 dB
- C. 30 dB
- D. 10 dB
|
| 4 |
Electric field lines of force were first introduced by: |
- A. Ampere
- B. Farady
- C. Fleming
- D. Coulomb
|
| 5 |
The closed switch in Boolean expression is represented by: |
|
| 6 |
The waves, which are used to detect the broken bones, are called: |
- A. Light waves
- B. x-rays
- C. Sound waves
- D. both b,c,
|
| 7 |
Which of the following is a method of energy transfer. |
- A. Conduction
- B. Reatiation
- C. wave motion
- D. all of these
|
| 8 |
Mathematical formula of capacitance of a capacitor is: |
- A. C = QV
- B. C = Q/V
- C. C = V/Q
- D. C = V2/Q
|
| 9 |
The current which changes its direction is called: |
- A. Current
- B. A.C.
- C. Conventional current
- D. D.C.
|
| 10 |
Which technology is used in mobile phone: |
- A. Heat
- B. Radio
- C. Light
- D. Laser
|
