MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The divergence of leaves depends upon the |
| A. | current |
| B. | the amount of charge |
| C. | nature of leaves |
| D. | nature of disc |
| Answer» C. nature of leaves | |
| 2. |
The spacing between field lines shows their |
| A. | direction |
| B. | position |
| C. | strength |
| D. | none of above |
| Answer» D. none of above | |
| 3. |
Capacitors which uses chemical reactions to store charge are |
| A. | paper capacitors |
| B. | electrolytic capacitor |
| C. | parallel plate capacitor |
| D. | mica capacitor |
| Answer» C. parallel plate capacitor | |
| 4. |
In the combination of parallel capacitors, the right plate of each capacitor is connected to the battery's |
| A. | no terminal |
| B. | both negative and positive terminals |
| C. | negative terminal |
| D. | positive terminal |
| Answer» D. positive terminal | |
| 5. |
In the combination of capacitors in series, the right plate of one capacitor is connected to the next capacitor's |
| A. | middle plate |
| B. | right plate |
| C. | left plate |
| D. | none of above |
| Answer» D. none of above | |
| 6. |
The types of radiations emitted by the radioactive substance are |
| A. | 2 |
| B. | 4 |
| C. | 5 |
| D. | 3 |
| Answer» E. | |
| 7. |
Nuclei bombarded with protons, neutron or alpha particles are changed to |
| A. | isotopes |
| B. | radioisotopes |
| C. | element having atomic number less than 82 |
| D. | none of above |
| Answer» C. element having atomic number less than 82 | |
| 8. |
The matter is built from small particles called |
| A. | radiant |
| B. | atoms |
| C. | isotopes |
| D. | ions |
| Answer» C. isotopes | |
| 9. |
The chemical compounds to explore the metabolism of chemical reactions inside the human body, animals or plants containing some quantity of radioisotopes are called |
| A. | radioactive endoscope |
| B. | radioactive tracers |
| C. | radioactive fusion |
| D. | radioactive atoms |
| Answer» C. radioactive fusion | |
| 10. |
Nuclei which do not emit radiations naturally are called |
| A. | unstable nuclei |
| B. | stable nuclei |
| C. | positive nuclei |
| D. | negative nuclei |
| Answer» C. positive nuclei | |
| 11. |
To store data permanently on the computer, we use |
| A. | primary memory |
| B. | temporary memory |
| C. | secondary memory |
| D. | variable memory |
| Answer» D. variable memory | |
| 12. |
The term hardware refers to |
| A. | computer manuals |
| B. | computer programs |
| C. | machinery |
| D. | operating system |
| Answer» D. operating system | |
| 13. |
The facts and figures used by programs to produce information is |
| A. | code |
| B. | language |
| C. | data |
| D. | program |
| Answer» D. program | |
| 14. |
The geographical area covered by a single base station is called |
| A. | unit |
| B. | cell |
| C. | software house |
| D. | quarter |
| Answer» C. software house | |
| 15. |
The term e-mail stands for |
| A. | emergency mail |
| B. | electronic mail |
| C. | extra mail |
| D. | external mail |
| Answer» C. extra mail | |
| 16. |
The memory which is used in the computer as temporary memory is |
| A. | read only memory (ROM) |
| B. | Random access memory (RAM) |
| C. | local area networking (LAN) |
| D. | all of above |
| Answer» C. local area networking (LAN) | |
| 17. |
In 1876, a simple telephone model to send voice in the form of the electrical signal from one place to another was made by |
| A. | Charles Babbage |
| B. | John Logie |
| C. | Michael Faraday |
| D. | Alexander Graham |
| Answer» E. | |
| 18. |
In computer terminology, processed data is called |
| A. | information |
| B. | variables |
| C. | communication |
| D. | symbols |
| Answer» B. variables | |
| 19. |
Data storage devices are also known as |
| A. | primary memory |
| B. | temporary memory |
| C. | secondary memory |
| D. | variable memory |
| Answer» D. variable memory | |
| 20. |
ICT is a blend of |
| A. | IT and telecommunication |
| B. | technology and communication |
| C. | codes and information |
| D. | IT and social networking |
| Answer» B. technology and communication | |
| 21. |
To deflect electrons to desired positions on the screen of a television tube, we use |
| A. | circuit breaker |
| B. | electric current |
| C. | electromagnets |
| D. | fuse |
| Answer» D. fuse | |
| 22. |
NOT gate works in such a way that if its input is 0, its output would be |
| A. | 1 |
| B. | 2 |
| C. | 0 |
| D. | 10 |
| Answer» B. 2 | |
| 23. |
The output of a NOR gate is opposite to the |
| A. | AND gate |
| B. | OR gate |
| C. | NAND gate |
| D. | NOT gate |
| Answer» C. NAND gate | |
| 24. |
The cathode-ray oscilloscope consists of |
| A. | electron gun with control grid |
| B. | fluorescent screen |
| C. | deflecting plates |
| D. | all of above |
| Answer» E. | |
| 25. |
AND gate has 2 or more inputs and the output is/are |
| A. | 2 |
| B. | 1 |
| C. | 3 |
| D. | 0 |
| Answer» C. 3 | |
| 26. |
The greatest penetration power is of which one? |
| A. | gamma rays |
| B. | alpha rays |
| C. | beta rays |
| D. | neutrons |
| Answer» B. alpha rays | |
| 27. |
In beta decay the nucleon number |
| A. | decreases by 1 |
| B. | increases by 1 |
| C. | increases by 2 |
| D. | remains unchanged |
| Answer» E. | |
| 28. |
The radiation emitted from uranium salt can |
| A. | DE stable the electrons |
| B. | break the protons |
| C. | make the protons |
| D. | ionize the gas |
| Answer» E. | |
| 29. |
The nucleus contains protons and neutrons which are collectively termed as |
| A. | nucleons |
| B. | protons |
| C. | atoms |
| D. | electrons |
| Answer» B. protons | |
| 30. |
C-14: C-12 ratio in a fossil bone is found to be 1/4th that of the ratio in the bone of an animal. The half-life of C-14 is 5730 years, the approximate age of the fossil is |
| A. | 12460 years |
| B. | 11460 years |
| C. | 13590 years |
| D. | 14580 years |
| Answer» C. 13590 years | |
| 31. |
The human eye acts like a |
| A. | endoscope |
| B. | camera |
| C. | telescope |
| D. | microscope |
| Answer» C. telescope | |
| 32. |
When a ray of light strikes a face of prism perpendicularly, it enters the prism without deviation and strikes the hypotenuse at an angle of |
| A. | 30 ° |
| B. | 45 ° |
| C. | 90 ° |
| D. | 60 ° |
| Answer» C. 90 ° | |
| 33. |
Concave mirrors are also called |
| A. | convex mirrors |
| B. | converging mirrors |
| C. | plane mirrors |
| D. | focal mirrors |
| Answer» C. plane mirrors | |
| 34. |
In a compound microscope, the focal length of the objective lens is |
| A. | short |
| B. | large |
| C. | zero |
| D. | none of above |
| Answer» B. large | |
| 35. |
The focus of the convex mirror is |
| A. | negative |
| B. | virtual |
| C. | real |
| D. | zero |
| Answer» B. virtual | |
| 36. |
Current due to the flow of positive charges is called |
| A. | electronic current |
| B. | conventional current |
| C. | protonic current |
| D. | all of above |
| Answer» C. protonic current | |
| 37. |
To pass no current through it, an ideal voltmeter should have |
| A. | very large resistance |
| B. | very small resistance |
| C. | no resistance |
| D. | none of above |
| Answer» B. very small resistance | |
| 38. |
A 50 W television and 3 kW oven are connected to a 300 V supply. The resistance of each appliance is respectively |
| A. | 200Ω, 20Ω |
| B. | 1875Ω, 6Ω |
| C. | 308Ω, 589Ω |
| D. | 350Ω, 208Ω |
| Answer» C. 308Ω, 589Ω | |
| 39. |
As compare to thin wires, thick wires have |
| A. | more resistance |
| B. | no resistance |
| C. | less resistance |
| D. | same resistance |
| Answer» D. same resistance | |
| 40. |
The unidirectional current is called |
| A. | alternating current |
| B. | electric charge |
| C. | direct current |
| D. | indirect current |
| Answer» D. indirect current | |
| 41. |
The spreading or blending of waves around the sharp edges or corners of obstacles or slits is called |
| A. | refraction of waves |
| B. | diffraction of waves |
| C. | reflection of waves |
| D. | deflection of waves |
| Answer» C. reflection of waves | |
| 42. |
The velocity of the wave with frequency 4Hz and wavelength 0.4m is |
| A. | 8ms-1 |
| B. | 1.6ms-1 |
| C. | 16ms-1 |
| D. | 2ms-1 |
| Answer» C. 16ms-1 | |
| 43. |
Waves which doesn't require any medium for their propagation are |
| A. | electromagnetic |
| B. | transverse |
| C. | longitudinal |
| D. | mechanical |
| Answer» B. transverse | |
| 44. |
If waves are reflected in the first medium after falling on the second medium then the angle of reflection and angle of incidence are |
| A. | equal |
| B. | unequal |
| C. | undefined |
| D. | undetermined |
| Answer» B. unequal | |
| 45. |
The number of cycles completed in one second of a vibrating body is called |
| A. | time period |
| B. | amplitude |
| C. | frequency |
| D. | wave length |
| Answer» D. wave length | |
| 46. |
When a heavy nucleus such as U-235 splits or fissions into two smaller nuclei by absorbing a small moving neutron, there takes place a |
| A. | nuclear fission |
| B. | nuclear power |
| C. | nuclear transmutation |
| D. | nuclear fusion |
| Answer» B. nuclear power | |
| 47. |
The safe level of radiation exposure per year is |
| A. | 1.0 rem |
| B. | 2.0 rem |
| C. | 5.0 rem |
| D. | 4.0 rem |
| Answer» D. 4.0 rem | |
| 48. |
The spontaneous process in which a parent unstable nuclide changes into a more stable daughter nuclide with the emission of radiations is called |
| A. | nuclear radioactivity |
| B. | nuclear transmutations |
| C. | nuclear radioisotopes |
| D. | nuclear ionization |
| Answer» C. nuclear radioisotopes | |
| 49. |
The cosmic radiation consists of |
| A. | protons and electrons |
| B. | alpha particles |
| C. | larger nuclei |
| D. | all of above |
| Answer» E. | |
| 50. |
As compared to electron, a proton is about |
| A. | 1936 times lighter |
| B. | 1836 times lighter |
| C. | 1936 times heavier |
| D. | 1836 times heavier |
| Answer» E. | |