MCQOPTIONS
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MCQOPTIONS
This section includes 2016 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
On a cold day when a room temperature is 15C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15C, because |
| A. | metals have higher thermal capacity than plastics |
| B. | plastics have a lower density than metals |
| C. | metals are good conductor of heat |
| D. | plastics have a higher thermal conductivity than metals |
| Answer» D. plastics have a higher thermal conductivity than metals | |
| 2. |
oil raise up the wick in a lamp. The principle involves |
| A. | the diffusion of oil through the wick |
| B. | the liquid state of oil |
| C. | capillary action phenomenon |
| D. | volatility of oil |
| Answer» D. volatility of oil | |
| 3. |
MLT is the dimensional formula for |
| A. | moment of inertia |
| B. | pressure |
| C. | elasticity |
| D. | couple acting on a body |
| Answer» E. | |
| 4. |
Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this? |
| A. | I, II and III |
| B. | I and II |
| C. | II and III |
| D. | I and III |
| Answer» D. I and III | |
| 5. |
An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is |
| A. | 1200 m |
| B. | 0.33 km |
| C. | 3.33 km |
| D. | 33 km |
| Answer» D. 33 km | |
| 6. |
On which of the following principles does a rocket in space work? |
| A. | Principle of Conservation of Mass |
| B. | Principle of Conservation of Speed |
| C. | Principle of Conservation of Momentum |
| D. | Principle of Conservation of Energy |
| Answer» D. Principle of Conservation of Energy | |
| 7. |
In the formula average velocity = (u + v)/2, u is the _________. |
| A. | Final velocity |
| B. | Acceleration |
| C. | Initial velocity |
| D. | Final displacement |
| Answer» D. Final displacement | |
| 8. |
Due to an acceleration of 2 m/s2, the velocity of a body increases from 20 m/s to 30 m/s in a certain period. Find the displacement (in m) of the body in that period. |
| A. | 650 |
| B. | 125 |
| C. | 250 |
| D. | 325 |
| Answer» C. 250 | |
| 9. |
How many calories are there in a Joule? |
| A. | 0.24 gram |
| B. | 0.48 gram |
| C. | 0.72 gram |
| D. | 0.96 gram |
| Answer» B. 0.48 gram | |
| 10. |
If two charged bodies having equal potential are connected through a conducting wire, then: |
| A. | Magnetic induction flows |
| B. | Current flows from positive to negative |
| C. | Current will not flow |
| D. | Current will flow from negative to positive |
| Answer» D. Current will flow from negative to positive | |
| 11. |
How many Watts are there in a Metric Horse Power? |
| A. | 746 |
| B. | 646 |
| C. | 546 |
| D. | 446 |
| Answer» B. 646 | |
| 12. |
According to _____, pressure is equal to the force divided by the area on which it acts. |
| A. | Stefan-Boltzmann Law |
| B. | Newton's Law |
| C. | Pascal's Law |
| D. | Hooke's Law |
| Answer» D. Hooke's Law | |
| 13. |
A unitless physical quantity is |
| A. | angle |
| B. | latent heat |
| C. | specific gravity |
| D. | density |
| Answer» D. density | |
| 14. |
"Any body that is completely or partially submerged in a fluid (gas or liquid) at rest is acted upon by an upward or buoyant force, the magnitude of which is equal to the weight of the fluid displaced by the body." Which is this law? |
| A. | Charles' Law |
| B. | Boyle's Law |
| C. | Archimedes' Principle |
| D. | Newton's Second Law of Motion |
| Answer» D. Newton's Second Law of Motion | |
| 15. |
86°F is equal to __________ |
| A. | 20°C |
| B. | 30°C |
| C. | 34°C |
| D. | 10°C |
| Answer» C. 34°C | |
| 16. |
A boat full of iron nails is floating on water in a lake. When the iron nails are removed, the water level ______. |
| A. | rises |
| B. | falls |
| C. | cannot be determined |
| D. | remains constant |
| Answer» C. cannot be determined | |
| 17. |
One reason for the formation of a strong bond by carbon is its ________ size. |
| A. | small |
| B. | large |
| C. | very large |
| D. | medium |
| Answer» B. large | |
| 18. |
Archimedes principle is used to design which of the following? |
| A. | Cars |
| B. | Aircraft |
| C. | Submarines |
| D. | Trucks |
| Answer» D. Trucks | |
| 19. |
How many electrons are there in one Coloumb of charge? |
| A. | 625 × 1023 electrons |
| B. | 0.625 × 103 electrons |
| C. | 6.25 × 1018 electrons |
| D. | 62.5 × 1013 electrons |
| Answer» D. 62.5 × 1013 electrons | |
| 20. |
______ lens is used by people suffering form myopia. |
| A. | Cylindrical |
| B. | Concave |
| C. | Convex |
| D. | Convexo - concave |
| Answer» C. Convex | |
| 21. |
A light year is |
| A. | The time it takes light to travel one year |
| B. | The distance the Earth moves in one year |
| C. | The distance travelled by light in one year |
| D. | The time it takes light to go once around the Earth's orbit |
| Answer» D. The time it takes light to go once around the Earth's orbit | |
| 22. |
In science, a push or pull is on an object is called what? |
| A. | Velocity |
| B. | Acceleration |
| C. | Pressure |
| D. | Force |
| Answer» E. | |
| 23. |
A car accelerates uniformly from 18 kmh-1 to 72 kmh-1 in 5 s. The acceleration of the car is: |
| A. | 3 ms2 |
| B. | 10.8 ms-2 |
| C. | 10.8 ms2 |
| D. | 3 ms-2 |
| Answer» E. | |
| 24. |
A car starting from rest, accelerates in a straight road at a constant rate of 3.0 ms-2 for 8 s. Find the distance travelled by car during this time. |
| A. | 75 m |
| B. | 86 m |
| C. | 96 m |
| D. | 100 m |
| Answer» D. 100 m | |
| 25. |
Choose the correct units of time in ascending order. |
| A. | Second, day, year, month, minutes, hour |
| B. | Second, hour, year, month, minutes, day |
| C. | Second, minutes, hour, day, month, year |
| D. | Second, day, month, year, minutes, hour |
| Answer» D. Second, day, month, year, minutes, hour | |
| 26. |
A particle of m mass moving at a v speed collides with a stationary particle of another m mass. What will be the velocity of the first particle after the collision? |
| A. | -v |
| B. | -2v |
| C. | Zero |
| D. | v |
| Answer» D. v | |
| 27. |
A precision current shunt is measuring 100 millivolts across it. This indicates a current of 25 A. What is the actual resistance of this shunt? |
| A. | 0.004 Ω |
| B. | 0.04 Ω |
| C. | 0.25 Ω |
| D. | 2.5 Ω |
| Answer» B. 0.04 Ω | |
| 28. |
Five bulbs each of 100 watt capacity in a tunnel are illuminated continuously for twenty hours. The consumption of electricity will be: |
| A. | One unit |
| B. | Two units |
| C. | Ten units |
| D. | Twenty units |
| Answer» D. Twenty units | |
| 29. |
An atom of 106Pd46 has how many neutrons? |
| A. | 60 |
| B. | 106 |
| C. | 46 |
| D. | 76 |
| Answer» B. 106 | |
| 30. |
Force causes |
| A. | Uniform velocity on a body |
| B. | Acceleration on a body |
| C. | Increases inertia on a body |
| D. | Increases mass of the body |
| Answer» C. Increases inertia on a body | |
| 31. |
Convex mirror is generally used in ________. |
| A. | Solar cookers |
| B. | Ophthalmoscope |
| C. | Reflector for headlight |
| D. | Rear view mirror |
| Answer» E. | |
| 32. |
221Fr87 → ABi83 + 2α particles. What is the value of A? |
| A. | 214 |
| B. | 211 |
| C. | 213 |
| D. | 215 |
| Answer» D. 215 | |
| 33. |
Power is defined as ________. |
| A. | Rate of doing work or rate of transfer of energy |
| B. | Work done in one minute |
| C. | Force applied to increase weight |
| D. | Work done in the transfer of energy |
| Answer» B. Work done in one minute | |
| 34. |
If two very light nuclei (A ≤ 10) join to form a heavier nucleus, then the nucleons of the new nucleus formed will get ________________ in the process. |
| A. | more tightly bound and energy would be absorbed |
| B. | less tightly bound and energy would be released |
| C. | less tightly bound and energy would be absorbed |
| D. | more tightly bound and energy would be released |
| Answer» E. | |
| 35. |
_______ is defined as the total path length traveled by an object divided by the total time interval during which the motion has taken place. |
| A. | Instantaneous acceleration |
| B. | Instantaneous velocity |
| C. | Average speed |
| D. | Uniform acceleration |
| Answer» D. Uniform acceleration | |
| 36. |
Light rays enter the eye through the outer, transparent structure at the front of the eye called the __________. |
| A. | Lens |
| B. | Cornea |
| C. | Optic nerve |
| D. | Iris |
| Answer» C. Optic nerve | |
| 37. |
Hydraulic press works on the principle of ________. |
| A. | Hooke’s law |
| B. | Newton’s third law of motion |
| C. | Pascal’s law |
| D. | Archimedes principle |
| Answer» D. Archimedes principle | |
| 38. |
India has the world's largest reserves of which of the following radioactive metals? |
| A. | Uranium |
| B. | Radium |
| C. | Bismith |
| D. | Thorium |
| Answer» E. | |
| 39. |
A 12 battery is connected parallel to a 5 Ω resistor. Find the current supplied by this battery. |
| A. | 2.4 A |
| B. | 2:00 A |
| C. | 2.8 A |
| D. | 1.5 A |
| Answer» B. 2:00 A | |
| 40. |
All electrical wires used in household fittings contain a plastic covering because plastics are: |
| A. | Semi-conductors of electricity |
| B. | Bad conductor of electricity |
| C. | Durable |
| D. | Good conductors of electricity |
| Answer» C. Durable | |
| 41. |
One horse-power (hp) 1 hp = _____W.s |
| A. | 500 |
| B. | 646 |
| C. | 846 |
| D. | 746 |
| Answer» E. | |
| 42. |
Ability to distinguish two closely placed objects is ______. |
| A. | Resolving power |
| B. | Video power |
| C. | Distinguish power |
| D. | Magnifying power |
| Answer» B. Video power | |
| 43. |
3He2 + 3He2 → 4He2 + 2 ___________ |
| A. | Positrons |
| B. | Protons |
| C. | Neutrons |
| D. | Electrons |
| Answer» C. Neutrons | |
| 44. |
Identify the SI unit of electrical resistance. |
| A. | Ohm |
| B. | Watt |
| C. | Coulomb |
| D. | Ampere |
| Answer» B. Watt | |
| 45. |
Hydrogen bomb is based on which Nuclear process? |
| A. | Thermal fusion |
| B. | Heavy Water Ability |
| C. | Thermal fission |
| D. | Rapid breeder reaction |
| Answer» B. Heavy Water Ability | |
| 46. |
An uncontrolled nuclear chain reaction forms the basis of: |
| A. | Biogas plant |
| B. | Hydro electric power station |
| C. | Nuclear reactor |
| D. | Atom bomb |
| Answer» E. | |
| 47. |
A good cricket fielder while catching a fast moving ball moves his hand along with the ball because ______A. he decreases the time of contact therefore increasing the force of contact.B. He increases the time of contact thereby reducing the force of contact.C. He is afraid to take the ball and thus takes his hand out.D. He decreases the time of contact therefore reducing the force of contact. |
| A. | C |
| B. | A |
| C. | D |
| D. | B |
| Answer» E. | |
| 48. |
Calculate the mass defect(in u) of an atom of 7Li3 having atomic mass 7.016 u. (masses of neutron, proton and electron are 1.00866 u, 1.00727 u and 0.00055 u respectively). |
| A. | 0.042099 |
| B. | 0.084199 |
| C. | 0.126299 |
| D. | 0.021049 |
| Answer» B. 0.084199 | |
| 49. |
Nucleus of 225Ra88 one beta particle to give nucleus of _________. |
| A. | 233Pa91 |
| B. | 233U92 |
| C. | 225Ac89 |
| D. | 228Ra88 |
| Answer» D. 228Ra88 | |
| 50. |
A ball thrown up vertically returns to the ground after 12.5 seconds. Find the velocity with which it was thrown up. |
| A. | 61 m/s |
| B. | 51 m/s |
| C. | 65 m/s |
| D. | 40 m/s |
| Answer» B. 51 m/s | |