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. |
When removed from water, the hair of the shaving brush sticks together because of - |
| A. | surface tension |
| B. | viscosity |
| C. | elasticity |
| D. | friction |
| Answer» B. viscosity | |
| 2. |
When a bubble of air rises from the bottom of a lake to the upper surface, its size will be - |
| A. | Will increase. |
| B. | will decrease. |
| C. | Will remain the same. |
| D. | It will flatten and become a saucer. |
| Answer» B. will decrease. | |
| 3. |
On what principle does a fountain pen work? |
| A. | flow of liquids from high to low potential |
| B. | capillary action |
| C. | Bernoulli's principle |
| D. | viscosity of liquids |
| Answer» C. Bernoulli's principle | |
| 4. |
The reason why water droplets do not stick to the oily surface is - |
| A. | lack of adhesive force |
| B. | surface tension |
| C. | cannot meet each other. |
| D. | Water is lighter than oil. |
| Answer» B. surface tension | |
| 5. |
Which of the following customs-Chatushtaya was prevalent in the post-Veda period? |
| A. | Dharma, Artha, Kama, Moksha |
| B. | Brahmins, Kshatriyas, Vaishyas, Shudras |
| C. | Brahmacharya, Grihasthasrama, Vanaprastha, Sannyasa |
| D. | Indra, Surya, Shudra, Marut |
| Answer» C. Brahmacharya, Grihasthasrama, Vanaprastha, Sannyasa | |
| 6. |
Why a gas filled balloon is easier to burst with a needle than with a nail? |
| A. | The gas is more reactive with the needle. |
| B. | The needle exerts more pressure on the balloon than the nail. |
| C. | The nail exerts more pressure on the balloon than the needle. |
| D. | The nail is longer than the needle. |
| Answer» C. The nail exerts more pressure on the balloon than the needle. | |
| 7. |
A barometer is placed in a bell jar. What happens when air is slowly removed in that bell jar? |
| A. | The level of mercury starts rising. |
| B. | The level of mercury begins to decrease. |
| C. | The level of mercury remains unchanged. |
| D. | Belazar gets cut. |
| Answer» C. The level of mercury remains unchanged. | |
| 8. |
Capillarity is not the only reason for which one of the following? |
| A. | Ink absorption. |
| B. | Climbing of underground water. |
| C. | Spread of water drop on cotton cloth. |
| D. | The movement of water from the roots of the plant to its full body. |
| Answer» E. | |
| 9. |
What will be the buoyant force on a piece of wood when it is held under water. |
| A. | equal to the weight of wood |
| B. | less than wood |
| C. | over load of wood |
| D. | Zero |
| Answer» D. Zero | |
| 10. |
Pressure cooker reduces the cooking time because - |
| A. | The boiling point of the water inside increases. |
| B. | The boiling point of the water inside decreases. |
| C. | High pressure makes food soft. |
| D. | Heat is more directly opposite. |
| Answer» B. The boiling point of the water inside decreases. | |
| 11. |
When water freezes, its density is |
| A. | increases. |
| B. | happens to. |
| C. | remains fixed. |
| D. | becomes zero. |
| Answer» C. remains fixed. | |
| 12. |
Consider the following statements - If the phenomenon of capillarity did not exist, then |
| A. | Kerosene lamp would have been difficult to use. |
| B. | One cannot use a straw to consume an alcoholic beverage. |
| C. | The ink-soak paper would have failed to work. |
| D. | The big trees that we see around us do not grow on the earth. |
| Answer» C. The ink-soak paper would have failed to work. | |
| 13. |
What force is acted upon when a body is immersed in a liquid? |
| A. | protrusion |
| B. | Burden |
| C. | Mass |
| D. | 1 और 2 दोनों |
| Answer» B. Burden | |
| 14. |
President in Presidential Presidency - |
| A. | independent of the administrator |
| B. | depends on the administrator |
| C. | depends on the judiciary |
| D. | bound by the advice of the Council of Ministers |
| Answer» B. depends on the administrator | |
| 15. |
Oil spreads on the surface of water because - |
| A. | Oil is more dense than water. |
| B. | Oil is less dense than water. |
| C. | The bottom tension of the oil is higher than that of the water. |
| D. | The bottom tension of oil is less than that of water. |
| Answer» E. | |
| 16. |
What causes surface tension? |
| A. | cohesive force between molecules |
| B. | cohesive force between molecules |
| C. | gravitational force between molecules |
| D. | electric force between molecules |
| Answer» B. cohesive force between molecules | |
| 17. |
Water drop is spherical, it is because of - |
| A. | air resistance |
| B. | low temperature |
| C. | viscosity of water |
| D. | surface tension |
| Answer» E. | |
| 18. |
Due to which the oil in the lamp rises up? |
| A. | pressure difference |
| B. | capillary event |
| C. | cohesive force |
| D. | low viscosity of oil |
| Answer» C. cohesive force | |
| 19. |
When was the Constitution of India passed by the Constituent Assembly? |
| A. | 26 नवम्बर, 1949 |
| B. | 26 जनवरी, 1949 |
| C. | 17 अक्टूबर, 1949 |
| D. | 14 नवम्बर, 1949 |
| Answer» B. 26 जनवरी, 1949 | |
| 20. |
When a ship enters the ocean from a river, |
| A. | He gets up a bit. |
| B. | He goes down a bit. |
| C. | He lives on the same floor. |
| D. | He sinks to the bottom of the ocean. |
| Answer» B. He goes down a bit. | |
| 21. |
An ice cube is floating in a glass of water. When the ice melts, what will be the effect on the level of water, that- |
| A. | Will grow. |
| B. | Will be less. |
| C. | That would be the same. |
| D. | First it will increase then it will decrease. |
| Answer» D. First it will increase then it will decrease. | |
| 22. |
The most important property of nanomaterials is |
| A. | pressure |
| B. | Force |
| C. | friction |
| D. | Temperature |
| Answer» D. Temperature | |
| 23. |
pressure inside soap bubble |
| A. | is less than atmospheric pressure. |
| B. | is equal to atmospheric pressure. |
| C. | is half of atmospheric pressure. |
| D. | is greater than atmospheric pressure. |
| Answer» E. | |
| 24. |
The reason for the spherical shape of a rain drop is - |
| A. | atmospheric pressure |
| B. | surface tension |
| C. | gravity |
| D. | density of matter |
| Answer» C. gravity | |
| 25. |
Kerosene floats on water because - |
| A. | Its density is less than the density of water. |
| B. | Its density will be equal to the density of water. |
| C. | Its density is greater than the density of water. |
| D. | none of the above |
| Answer» B. Its density will be equal to the density of water. | |
| 26. |
Why does an iron nail float on mercury while it sinks in water? |
| A. | Due to the tendency of iron to chemically react with mercury is less than that of water. |
| B. | Mercury is heavier than water. |
| C. | The density of iron is greater than that of water and less than that of mercury. |
| D. | Iron weighs more than water and less than mercury. |
| Answer» D. Iron weighs more than water and less than mercury. | |
| 27. |
A weightless balloon is filled with 200 grams of water. Its weight in water will be |
| A. | Zero |
| B. | 100 ग्राम |
| C. | 200 ग्राम |
| D. | 400 ग्राम |
| Answer» B. 100 ग्राम | |
| 28. |
It is harder to walk on snow than on road because- |
| A. | The road is hard with snow. |
| B. | Snow is harder than the road. |
| C. | Friction is less in snow than in road. |
| D. | When we push with our feet, the snow doesn't react. |
| Answer» D. When we push with our feet, the snow doesn't react. | |
| 29. |
How much of the iceberg that floats in the ocean is above the sea surface? |
| A. | 1/9 |
| B. | 1/10 |
| C. | 1/6 |
| D. | 1/4 |
| Answer» C. 1/6 | |
| 30. |
The reason why clouds float in the atmosphere is because of their low - |
| A. | heat |
| B. | density |
| C. | Speed |
| D. | pressure |
| Answer» C. Speed | |
| 31. |
When a detergent is added to pure water. So the page tension - |
| A. | increases. |
| B. | happens to. |
| C. | remains unchanged. |
| D. | becomes infinite. |
| Answer» C. remains unchanged. | |
| 32. |
When we pull up the bucket of water from the well, we feel that the bucket - |
| A. | It has lost its stability after coming out of the water. |
| B. | The water has become lighter above the surface. |
| C. | The water has become heavy above the surface. |
| D. | Coming out of the water, its mass has increased. |
| Answer» D. Coming out of the water, its mass has increased. | |
| 33. |
The energy stored in the clock spring is |
| A. | thermal energy |
| B. | potential energy |
| C. | chemical energy |
| D. | kinetic energy |
| Answer» C. chemical energy | |
| 34. |
The function of ball bearing in the wheel is |
| A. | increase friction |
| B. | converting kinetic friction to cylinder friction |
| C. | convert static friction into kinetic friction |
| D. | just for convenience |
| Answer» C. convert static friction into kinetic friction | |
| 35. |
Which of the following is an essential component of parliamentary government? |
| A. | an ambiguous constitution |
| B. | political party |
| C. | an independent judiciary |
| D. | a written constitution |
| Answer» C. an independent judiciary | |
| 36. |
Friction angle and repose are in which of the following forms? |
| A. | similar to each other |
| B. | not alike |
| C. | Proportional to each other |
| D. | None of these. |
| Answer» B. not alike | |
| 37. |
Which form of energy is converted into electrical energy in wind power? |
| A. | solar energy |
| B. | potential energy |
| C. | Radiation Energy |
| D. | kinetic energy |
| Answer» E. | |
| 38. |
Which of the following is also used as a lubricant. |
| A. | cuprite |
| B. | graphite |
| C. | Hematite |
| D. | cryolite |
| Answer» C. Hematite | |
| 39. |
The speed of the wheels of a bullock cart while moving on the road is an example of- |
| A. | oscillatory and rotational motion |
| B. | oscillating and moving motion |
| C. | transfer and rotational speed |
| D. | transfer speed only |
| Answer» D. transfer speed only | |
| 40. |
A simple device helps a person - |
| A. | To do the same amount of work more quickly. |
| B. | working less. |
| C. | To do the same amount of work using less force |
| D. | doing the same amount of work slowly |
| Answer» C. To do the same amount of work using less force | |
| 41. |
Energy conservation means that - |
| A. | Energy cannot be created but can be destroyed. |
| B. | Energy can be created. |
| C. | Energy is created and destroyed. |
| D. | Energy can neither be created nor destroyed. |
| Answer» E. | |
| 42. |
A person is standing on a sensitive scale. If he takes a deep breath in, the reading of the scales - |
| A. | Will increase. |
| B. | Will decrease |
| C. | There will be no effect on the readings. |
| D. | It will increase or decrease depending on the atmospheric pressure. |
| Answer» C. There will be no effect on the readings. | |
| 43. |
Who called the Preamble / Preamble of the Indian Constitution the birth chart of the Sovereign Democratic Republic of India - |
| A. | के0 एम0 मुंशी |
| B. | Mahatma Gandhi |
| C. | Jawaharlal Nehru |
| D. | बी0 आर0 अम्बेडकर |
| Answer» B. Mahatma Gandhi | |
| 44. |
The force product is - |
| A. | of weight and velocity |
| B. | mass and acceleration |
| C. | load and acceleration |
| D. | of mass and velocity |
| Answer» C. load and acceleration | |
| 45. |
Which of the following forces is dissipating? |
| A. | magnetic force |
| B. | gravitational force |
| C. | electrostatic force |
| D. | Frictional force |
| Answer» E. | |
| 46. |
The weight of an object falling freely under the action of gravity - |
| A. | is variable. |
| B. | is minimum. |
| C. | becomes zero. |
| D. | is maximum. |
| Answer» D. is maximum. | |
| 47. |
The height of a synchronous satellite above the surface of the earth is approximately - |
| A. | 30000 किमी. |
| B. | 36000 किमी. |
| C. | 42000 किमी. |
| D. | none of these |
| Answer» C. 42000 किमी. | |
| 48. |
When an explosive shell in a path under the influence of gravity explodes, the mass of its parts is driven towards the center of mass. |
| A. | vertical down |
| B. | first vertical up then vertical down |
| C. | along the original parabolic path |
| D. | first along the horizontal and then along the parabolic path |
| Answer» D. first along the horizontal and then along the parabolic path | |
| 49. |
The center of weight of a body reacts with - |
| A. | gravity |
| B. | boyle's law |
| C. | 1 और 2 दोनों |
| D. | Utopia |
| Answer» D. Utopia | |
| 50. |
If an object is 8 km. What will happen if it is thrown into space with a velocity per second? |
| A. | She will explode. |
| B. | This object will go into space. |
| C. | She will fall back to earth. |
| D. | It will start orbiting around the earth. |
| Answer» D. It will start orbiting around the earth. | |