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 is International Day of Forests celebrated?: |
| A. | March 20 |
| B. | March 21 |
| C. | March 22 |
| D. | March 24 |
| Answer» C. March 22 | |
| 2. |
What percentage will be reserved for women in the non-gazetted police force of seven union territories? |
| A. | 15 |
| B. | 20 |
| C. | 25 |
| D. | 33 |
| Answer» E. | |
| 3. |
Who has gone to the Life Time Achievement Award at the 4th National Photography Awards? |
| A. | Swaroop Dutt |
| B. | Shashi Kumar |
| C. | Umesh Nikam |
| D. | Surendra R Patel |
| Answer» E. | |
| 4. |
Which of the following increases/ increases nitrogen in the soil? 1. Excretion of urea by animals 2. Burning of coal by humans 3. Death of plants |
| A. | only 1 |
| B. | 2 and 3 |
| C. | 1 and 3 |
| D. | 1,2 and 3 |
| Answer» E. | |
| 5. |
Pradhan Mantri Kaushal Vikas Yojana (PMKVY) has been implemented by which ministry? |
| A. | human resource development ministry |
| B. | Ministry of Minority Affairs |
| C. | Ministry of Skill Development and Entrepreneurship |
| D. | None of these |
| Answer» D. None of these | |
| 6. |
Which of the following are some of the important pollutants released by the steel industry in India? 1. Oxides of sulfur 2. Oxides of nitrogen 3. Carbon monoxide 4. Carbon dioxide |
| A. | 1,3 and 4 |
| B. | 2 and 3 |
| C. | 1 and 4 |
| D. | all these |
| Answer» E. | |
| 7. |
Which of the following is/are the example/s of a chemical change? 1. Crystallization of sodium chloride 3. Milk coagulation 2. Melting of ice |
| A. | 1 and 2 |
| B. | only 3 |
| C. | 1,2 and 3 |
| D. | none of these |
| Answer» C. 1,2 and 3 | |
| 8. |
Acid rain is caused by environmental pollution caused by? |
| A. | carbon dioxide and nitrogen |
| B. | carbon monoxide and carbon dioxide |
| C. | ozone and carbon dioxide |
| D. | nitrous oxide and sulfur dioxide |
| Answer» E. | |
| 9. |
Consider the following statements 1. If two circles of magenta and yellow color intersect each other, then the color of the intersected area will be red. 2. If two circles of color cyan (greenish blue) and magenta (blood blue) intersect each other, then the color of the intersected area will be blue. Which of the above statement(s) is/are correct? |
| A. | only 1 |
| B. | only 2 |
| C. | 1 and 2 |
| D. | neither 1 nor 2 |
| Answer» D. neither 1 nor 2 | |
| 10. |
Which of the following contributes/does carbon dioxide to the carbon cycle on planet Earth? 1. Volcanic action 2. Respiration 3. Photosynthesis 4. Decay of organic matter |
| A. | 1 and 3 |
| B. | only 2 |
| C. | 1,2 and 4 |
| D. | all these |
| Answer» D. all these | |
| 11. |
When water is heated from 0°C to 10°C, its volume |
| A. | grows |
| B. | decreases |
| C. | does not change |
| D. | first decreases and then increases |
| Answer» E. | |
| 12. |
The layer in the Earth's atmosphere called the ionosphere facilitates radio communication. Why ? 1. The presence of ozone reflects the radio waves towards the earth. 2. The wavelength of radio waves is very long. Which of the above statement(s) is/are correct? |
| A. | only 1 |
| B. | only 2 |
| C. | 1 and 2 |
| D. | neither 1 nor 2 |
| Answer» C. 1 and 2 | |
| 13. |
The choke is attached to the fluorescence tubules. choke coil |
| A. | raises the line voltage |
| B. | Line voltage drops |
| C. | reduces the current in the circuit |
| D. | Low Frequency Blocks Electricity |
| Answer» D. Low Frequency Blocks Electricity | |
| 14. |
Consider the following statements 1. When the sphere passes through the center, the acceleration is zero. 2. The oscillator attains a specified velocity twice in every rotation. 3. When the sphere reaches the peak position during the oscillator, both its speed and acceleration are zero. 4. The oscillatory amplitude of a normal oscillator decreases with time. Which of the above statements are correct? |
| A. | 1 and 2 |
| B. | 3 and 4 |
| C. | 1,2 and 4 |
| D. | 2,3 and 4 |
| Answer» D. 2,3 and 4 | |
| 15. |
Consider the following statements 1. Light of longer wavelength is scattered more than that of short wavelength. 2. The speed of visible light in water is 0.95 times that of vacuum. 3. Radio waves are produced by fast oscillating electric currents. 4. Police use the reflected miniature radio wave effect of Doppler to detect vehicles over driving. Which of the above statements are correct? |
| A. | 1 and 2 |
| B. | 1 and 3 |
| C. | 2 and 4 |
| D. | 3 and 4 |
| Answer» D. 3 and 4 | |
| 16. |
When a CD (compact disc used in audio and video systems) is viewed in sunlight, rainbow-like colors appear. it can be explained |
| A. | On the basis of the phenomenon of reflection and diffraction |
| B. | On the basis of the phenomenon of reflection and transit |
| C. | On the basis of the phenomenon of transit on diffraction |
| D. | On the basis of refraction, diffraction and transit phenomena |
| Answer» E. | |
| 17. |
Which of the following TV remote control unit is used to operate a TV set? |
| A. | light waves |
| B. | sound waves |
| C. | micro waves |
| D. | radio waves |
| Answer» E. | |
| 18. |
A noise loudness level of 100 decibels would correspond to |
| A. | with a audible voice |
| B. | from normal conversation |
| C. | by the noise of the noisy street |
| D. | machine factory noise |
| Answer» E. | |
| 19. |
The variables that are affected when light waves travel from air to glass are |
| A. | Wavelength, Frequency and Velocity |
| B. | velocity and frequency |
| C. | Wavelength and Frequency |
| D. | wavelength, and velocity |
| Answer» E. | |
| 20. |
The mass on an object is 100 kriga. If the acceleration due to gravity on the moon is ge/6, then the mass of the object on the moon will be |
| A. | 100/6 kg |
| B. | 60 kg |
| C. | 100 kg |
| D. | 600kg |
| Answer» D. 600kg | |
| 21. |
'Black hole' is a body in space, which does not allow any kind of radiation to come out. The reason for this property is |
| A. | very small size |
| B. | very large size |
| C. | very high density |
| D. | very low density |
| Answer» D. very low density | |
| 22. |
An oil tanker partially filled with oil is moving forward on a flat road with a uniform acceleration. oil free page |
| A. | will remain horizontal |
| B. | will be inclined from the horizontal in such a way that there will be less depth at the rear end |
| C. | will be inclined from the horizontal in such a way that there will be more depth at the rear end |
| D. | will take the shape of a parabolic curve |
| Answer» D. will take the shape of a parabolic curve | |
| 23. |
Consider the following statements A four wheeled vehicle traveling at high speed on a sharp circular path 1. will reverse on the outer wheels 2. will reverse on the inner wheels 3. will slide outwards 4. will slide inwards Which of the above statements / Is the statement/s correct? |
| A. | 1 and 3 |
| B. | 2 and 4 |
| C. | 2 and 3 |
| D. | 1 and 4 |
| Answer» B. 2 and 4 | |
| 24. |
Consider the following natural facts 1. Terrestrial heating 2. Reflection of light 3. Refraction of light 4. Diffraction of light Due to which of the above facts |
| A. | 1 and 2 |
| B. | 2,3 and 4 |
| C. | 1 and 3 |
| D. | only 4 |
| Answer» D. only 4 | |
| 25. |
If the mass of the earth remains the same and the radius is reduced by 1%, then the value of 'g' on the surface of the earth |
| A. | will increase by 0.5% |
| B. | will increase by 2% |
| C. | will be reduced by 0.5% |
| D. | will be reduced by 2% |
| Answer» C. will be reduced by 0.5% | |
| 26. |
A polythene balloon filled with hydrogen is released from the Earth's seal. rising to the height of the atmosphere |
| A. | the size of the balloon will decrease |
| B. | The balloon will flatten into a disc shape. |
| C. | the size of the balloon will increase |
| D. | The size and shape of the balloon will remain the same as before |
| Answer» D. The size and shape of the balloon will remain the same as before | |
| 27. |
The reason for the diffusion of light in the atmosphere is |
| A. | Carbon dioxide |
| B. | dust particles |
| C. | helium |
| D. | water vapour |
| Answer» C. helium | |
| 28. |
A person is standing at the midpoint of a wooden ladder, the ladder starts sliding between the floor of the room and the vertical wall, but while doing so remains in an upward plane. The path traced by a person standing at the midpoint of a sliding ladder will be |
| A. | a straight line |
| B. | an elliptical path |
| C. | a circular path |
| D. | a parabolic path |
| Answer» D. a parabolic path | |
| 29. |
A weightless rubber balloon is filled with 200 cc of water. Its weight in water will be- |
| A. | 9.8/5 N |
| B. | 9.8/10N |
| C. | 9.8/2N |
| D. | Zero |
| Answer» E. | |
| 30. |
The car on the road is running at a uniform speed of 60 km/h. net resultant force on the car |
| A. | is the driving force, which is in the direction of motion of the car |
| B. | The resistive force which is in the opposite direction of the motion of the car is |
| C. | is a force |
| D. | is equal to zero |
| Answer» E. | |
| 31. |
What is the order of magnitude of the electrical resistance of the human body (dry)? |
| A. | 10^2 ohm |
| B. | 10^4 ohm |
| C. | 10^6 ohm |
| D. | 10^8 ohm |
| Answer» D. 10^8 ohm | |
| 32. |
Which of the following is marked on the commonly used fluorescence tube lights? |
| A. | 220 K |
| B. | 273 K |
| C. | 6500 K |
| D. | 9000 K |
| Answer» D. 9000 K | |
| 33. |
Which of the following is used for computed tomography used to observe the internal structure of the human body? |
| A. | X-rays |
| B. | Sound wave |
| C. | magnetic resonance |
| D. | radiation isotopes |
| Answer» B. Sound wave | |
| 34. |
Who among the following invented the laser? |
| A. | Theodore Mayman |
| B. | Dennis Pepin |
| C. | Willian Morton |
| D. | Francis Crick |
| Answer» B. Dennis Pepin | |
| 35. |
Which of the following pairs are correctly matched? Inventor Invention 1. Christopher Cockerell Hovercraft 2. David Bushnell Submarine 3. Jesse Perrier Steamship |
| A. | 1,2 and 3 |
| B. | 1 and 2 |
| C. | 2 and 3 |
| D. | 1 and 3 |
| Answer» C. 2 and 3 | |
| 36. |
Four wires made of the same material, whose dimensions are given below, are pulled at different times by the same weight, which one of them will have maximum increase in wavelength? |
| A. | 1 m length and diameter of 2 mm |
| B. | 2 m length and diameter of 2 mm |
| C. | 3 m length and 1.5 mm diameter wire |
| D. | 1 m length and 1 mm diameter wire |
| Answer» D. 1 m length and 1 mm diameter wire | |
| 37. |
Consider the following statements 1. A flute of shorter length produces waves of lower frequency. 2. Sound travels through rocks only in the form of longitudinal elastic waves. Which of the above statement(s) is/are correct? |
| A. | only 1 |
| B. | only 2 |
| C. | 1 and 2 |
| D. | neither 1 nor 2 |
| Answer» C. 1 and 2 | |
| 38. |
Which one of the following non-metals is not a slow conductor of electricity? |
| A. | Sulphur |
| B. | selenium |
| C. | bromine |
| D. | Phosphorus |
| Answer» C. bromine | |
| 39. |
Which of the following types of light is rapidly absorbed by plants? |
| A. | purple and orange |
| B. | blue and red |
| C. | indigo and yellow |
| D. | yellow and purple |
| Answer» C. indigo and yellow | |
| 40. |
Three identical vessels A, B and C are filled to the same level with water, mercury and kerosene respectively. The bases of all the three vessels have similar spouts. If all the three spouts are opened simultaneously, which vessel will be empty first? |
| A. | character B |
| B. | All three vessels A, B and C will be empty simultaneously at the same time. |
| C. | character A |
| D. | character C |
| Answer» C. character A | |
| 41. |
Which one of the following types of glass can refract ultraviolet rays? |
| A. | soda glass |
| B. | pyrex glass |
| C. | Jena Glass |
| D. | crooks glass |
| Answer» E. | |
| 42. |
What does the term 'Dolby B' or 'Dolby C' on tape recorders and other sound systems refer to? |
| A. | frequency driven system |
| B. | amplitude modeled system |
| C. | Noise reduction circuit |
| D. | Both DC and AC power can be used in experiments |
| Answer» D. Both DC and AC power can be used in experiments | |
| 43. |
Consider the following statements about jet engine and rocket 1. Jet engine uses ambient air for its oxygen supply, hence it is unsuitable for movement in space. 2. Rocket carries its oxygen supply as gas and in fuel. Which of the above statement(s) is/are correct? |
| A. | only 1 |
| B. | only 2 |
| C. | 1 and 2 |
| D. | neither 1 nor 2 |
| Answer» D. neither 1 nor 2 | |
| 44. |
Consider the following statements: 1. A widely used musical swaragram is called ditonic swaragram. Has seven frequencies. 2. The frequency of 'Sa' is 256 Hz and that of 'Ni' is 512 Hz. Which of the above statement(s) is/are correct? |
| A. | only 1 |
| B. | only 2 |
| C. | 1 and 2 |
| D. | neither 1 nor 2 |
| Answer» B. only 2 | |
| 45. |
Who among the following discovered heavy water? |
| A. | Heinrich Hertz |
| B. | H. C. Ure |
| C. | g mendel |
| D. | Joseph Priestley |
| Answer» C. g mendel | |
| 46. |
Which one of the following types of waves is used in night vision equipment? |
| A. | Radio wave |
| B. | micro wave |
| C. | infrared wave |
| D. | none of these |
| Answer» D. none of these | |
| 47. |
Who among the following scientists was the co-winner of the Nobel Prize in Physics with his son? |
| A. | Max Planck |
| B. | Albert Einstein |
| C. | William Henry Bragg |
| D. | Enrico Fermi |
| Answer» D. Enrico Fermi | |
| 48. |
How would the height of a six foot tall person be expressed in nanometers (approximately)? |
| A. | 183*10^6 nanometer |
| B. | 234 * 10^6 nanometers |
| C. | 183 * 10^7 nanometers |
| D. | 234 * 10^7 nanometers |
| Answer» D. 234 * 10^7 nanometers | |
| 49. |
Which of the following is used as electrolyte in dry cell (battery)? |
| A. | ammonium chloride and zinc chloride |
| B. | sodium chloride and calcium chloride |
| C. | Magnesium Chloride and Zinc Chloride |
| D. | ammonium chloride and calcium chloride |
| Answer» B. sodium chloride and calcium chloride | |
| 50. |
One person is sitting in the car which is at rest. The reaction on each of the four wheels of the car off the road is R. When the car moves on a straight flat road, what will be the change in the reaction of each of the front wheels? |
| A. | it will be greater than R |
| B. | it will be less than R |
| C. | it will be equal to R |
| D. | it will depend on the material of the road |
| Answer» D. it will depend on the material of the road | |