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Physics 10th Class English Medium Unit 4 Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | The brain of any computer system is: |
<p class="MsoNormal">Monitor<o:p></o:p></p> <p class="MsoNormal">Memory<o:p></o:p></p> <p class="MsoNormal">CPU<o:p></o:p></p> <p class="MsoNormal">Control unit<o:p></o:p></p> |
| 2 | The basic operations performed by a computer are: |
<p class="MsoNormal">Arithmetic operations<o:p></o:p></p> <p class="MsoNormal">Non-arithmetic operations<o:p></o:p></p> <p class="MsoNormal">Logical operations<o:p></o:p></p> <p class="MsoNormal">Both a and c<o:p></o:p></p> |
| 3 | Which is the most suitable means of reliable continuous
communication between an orbiting satellite and earth: |
<p class="MsoNormal">Mecrowaves<o:p></o:p></p> <p class="MsoNormal">Radio waves<o:p></o:p></p> <p class="MsoNormal">Sound waves<o:p></o:p></p> <p class="MsoNormal">Any light waves<o:p></o:p></p> |
| 4 | In computer terminology information means: |
<p class="MsoNormal">Any data<o:p></o:p></p> <p class="MsoNormal">Raw data<o:p></o:p></p> <p class="MsoNormal">Processed data<o:p></o:p></p> <p class="MsoNormal">Large data<o:p></o:p></p> |
| 5 | In case of OR and AND operation, if switches s1
and s2 both are open then lamp is: |
<p class="MsoNormal">On<o:p></o:p></p> <p class="MsoNormal">Off<o:p></o:p></p> <p class="MsoNormal">Sometimes on and sometimes off<o:p></o:p></p> <p class="MsoNormal">Neither on nor off<o:p></o:p></p> |
| 6 | How many tubes or electron guns used in a colour television
set: |
<p class="MsoNormal">Two<o:p></o:p></p> <p class="MsoNormal">Four<o:p></o:p></p> <p class="MsoNormal">Five<o:p></o:p></p> <p class="MsoNormal">Three<o:p></o:p></p> |
| 7 | X=A.B. This equation is used for which operation: |
<p class="MsoNormal">AND<o:p></o:p></p> <p class="MsoNormal">OR<o:p></o:p></p> <p class="MsoNormal">NOT<o:p></o:p></p> <p class="MsoNormal">NAND<o:p></o:p></p> |
| 8 | Which is used to investigate the properties of electron
beam: |
<p class="MsoNormal">LDR<o:p></o:p></p> <p class="MsoNormal">Electroscope<o:p></o:p></p> <p class="MsoNormal">Proton gun<o:p></o:p></p> <p class="MsoNormal">Electron gun<o:p></o:p></p> |
| 9 | At room temperature, electrons cannot escape the metal
surface due to ………….. of atomic nucleus: |
<p class="MsoNormal">Repulsive forces<o:p></o:p></p> <p class="MsoNormal">Attractive forces<o:p></o:p></p> <p class="MsoNormal">Gravitational forces<o:p></o:p></p> <p class="MsoNormal">Electromagnetic forces<o:p></o:p></p> |
| 10 | NOT gate is also called: |
<p class="MsoNormal">Converter<o:p></o:p></p> <p class="MsoNormal">Inverter<o:p></o:p></p> <p class="MsoNormal">Transmitter<o:p></o:p></p> <p class="MsoNormal">Receiver<o:p></o:p></p> |
| 11 | Level of noise recommended in eight, hour work day: |
<p class="MsoNormal">80-90 dB<o:p></o:p></p> <p class="MsoNormal">80-85- dB<o:p></o:p></p> <p class="MsoNormal">85-90 dB<o:p></o:p></p> <p class="MsoNormal">90-95 dB<o:p></o:p></p> |
| 12 | Ultrasound waves carry energy: |
<p class="MsoNormal">Less<o:p></o:p></p> <p class="MsoNormal">More<o:p></o:p></p> <p class="MsoNormal">Equal<o:p></o:p></p> <p class="MsoNormal">None of these<o:p></o:p></p> |
