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. |
Supersonic plane fly with the speed _________________ |
| A. | greater than the speed of sound |
| B. | of light |
| C. | of sound |
| D. | less than the speed of sound |
| Answer» B. of light | |
| 2. |
Magnetism at the centre of a bar magnet is _________________ |
| A. | zero |
| B. | minimum or maximum |
| C. | maximum |
| D. | minimum |
| Answer» B. minimum or maximum | |
| 3. |
Mica is used in electrical appliances such as electric iron because mica is _________________ |
| A. | a bad conductor of heat but a good conductor of electricity |
| B. | a bad conductor of heat as well as electricity |
| C. | a good conductor of heat as well as electricity |
| D. | a good conductor of heat but a bad conductor of electricity |
| Answer» E. | |
| 4. |
Planets do not twinkle because _________________ |
| A. | their distance from the earth does notchange with time |
| B. | they are nearer to earth and hence we receive a greater amount of light and, therefore minor variations in the intensity are not noticeable |
| C. | they are very far away from the earth resulting in decrease in intensity of light |
| D. | they emit light of a constant intensity |
| Answer» C. they are very far away from the earth resulting in decrease in intensity of light | |
| 5. |
It is easier to roll a stone up a sloping road than to lift it vertical upwards because _________________ |
| A. | work done in lifting the stone is equal to rolling it |
| B. | work done in rolling a stone is less than in lifting it |
| C. | work done in both is same but the rate of doing work is less in rolling |
| D. | work done in rolling is more than in lifting |
| Answer» C. work done in both is same but the rate of doing work is less in rolling | |
| 6. |
It is easier to roll a barrel full of coal tar than to pull it because _________________ |
| A. | the rolling friction is much less than the sliding friction |
| B. | coal tar is a liquid and it flows in the barrel when it is rolled |
| C. | more surface area of the barrel is in contact with the road when it is pulled |
| D. | the full weight of the barrel comes into play when it is pulled |
| Answer» B. coal tar is a liquid and it flows in the barrel when it is rolled | |
| 7. |
What is the effect of the decrease in pressure with the increase in speed of the fluid in a horizontal pipe called ? |
| A. | Bernoulli's effect |
| B. | None of the above |
| C. | Torriculli's effect |
| D. | Venturi's effect |
| Answer» E. | |
| 8. |
It is more difficult to walk on a sandy road than on a concrete road because _________________ |
| A. | the friction between sand and feet is more than that between concrete and feet |
| B. | the sand is grainy but concrete is smooth |
| C. | the friction between sand and feet is less than that between concrete and feet |
| D. | sand is soft and concreter is hard |
| Answer» D. sand is soft and concreter is hard | |
| 9. |
Let a thin capillary tube be replaced with another tube of insufficient length then, we find water _________________ |
| A. | will not rise |
| B. | change its meniscus |
| C. | depressed |
| D. | will overflow |
| Answer» B. change its meniscus | |
| 10. |
One thousand microns is equal to _________________ |
| A. | 10-6m |
| B. | 10-12m |
| C. | 10-9m |
| D. | 10-3m |
| Answer» E. | |
| 11. |
Radio telescopes are better than optical telescopes because _________________ |
| A. | they can work even in cloudy conditions |
| B. | All of the above |
| C. | they can work during the day and night |
| D. | they can detect faint galaxies which no optical telescope can |
| Answer» C. they can work during the day and night | |
| 12. |
On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because _________________ |
| A. | density of mercury is greater than that of water |
| B. | cohesion of water is greater than its adhesion with glass |
| C. | cohesion of mercury is greater than its adhesion with glass |
| D. | mercury is a metal |
| Answer» D. mercury is a metal | |
| 13. |
Nuclear sizes are expressed in a unit named _________________ |
| A. | angstrom |
| B. | tesla |
| C. | newton |
| D. | Fermi |
| Answer» E. | |
| 14. |
Pa(Pascal) is the unit for _________________ |
| A. | pressure |
| B. | conductivity |
| C. | frequency |
| D. | thrust |
| Answer» B. conductivity | |
| 15. |
Rainbow is due to _________________ |
| A. | ionisation of water deposits |
| B. | refraction and reflection of sunlight by water droplets |
| C. | diffusion of sunlight through water droplets |
| D. | absorption of sunlight in minute water droplets |
| Answer» C. diffusion of sunlight through water droplets | |
| 16. |
Of the following properties of a wave, the one that is independent of the other is its _________________ |
| A. | velocity |
| B. | frequency |
| C. | wavelength |
| D. | amplitude |
| Answer» E. | |
| 17. |
Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to _________________ |
| A. | hysteresis loss alone |
| B. | intense sunlight at noon |
| C. | both the heating effect of current and hysteresis loss |
| D. | the heating effect of current alone |
| Answer» D. the heating effect of current alone | |
| 18. |
Rectifiers are used to convert _____________ |
| A. | Alternating current to Direct current |
| B. | low voltage to high voltage |
| C. | high voltage to low voltage |
| D. | Direct current to Alternating current |
| Answer» B. low voltage to high voltage | |
| 19. |
On a stationary sail boat, air is blown from a fan attached to the boat. The boat _________________ |
| A. | does not move |
| B. | spins around |
| C. | moves in the same direction in which air blows |
| D. | moves in opposite direction in which the air is blown |
| Answer» B. spins around | |
| 20. |
One watt-hour is equivalent to ________________ |
| A. | 6.3 x 10-7 J |
| B. | 3.6 x 10-3 J |
| C. | 3.6 x 103 J |
| D. | 6.3 x 103 J |
| Answer» D. 6.3 x 103 J | |
| 21. |
Lux is the SI unit of _____________ |
| A. | luminous efficiency |
| B. | luminous intensity |
| C. | luminous flux |
| D. | intensity of illumination |
| Answer» E. | |
| 22. |
Radiocarbon is produced in the atmosphere as a result of _________________ |
| A. | action of ultraviolet light from the sun on atmospheric oxygen |
| B. | lightning discharge in atmosphere |
| C. | action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere |
| D. | collision between fast neutrons and nitrogen nuclei present in the atmosphere |
| Answer» E. | |
| 23. |
Mirage is due to _________________ |
| A. | magnetic disturbances in the atmosphere |
| B. | equal heating of different parts of the atmosphere |
| C. | depletion of ozone layer in the atmosphere |
| D. | unequal heating of different parts of the atmosphere |
| Answer» E. | |
| 24. |
Intensity of sound at a point is _________________ its distance from the source. |
| A. | directly proportional to square of |
| B. | inversely proportional to square of |
| C. | inversely proportional to |
| D. | directly proportional to |
| Answer» C. inversely proportional to | |
| 25. |
Stars which appear single to the naked eye but are double when seen through a telescope are ________________ |
| A. | binaries |
| B. | quasars |
| C. | asteroids |
| D. | novas and supernovas |
| Answer» B. quasars | |
| 26. |
On a rainy day, small oil films on water show brilliant colours. This is due to _________________ |
| A. | interference |
| B. | polarization |
| C. | diffraction |
| D. | dispersion |
| Answer» B. polarization | |
| 27. |
Planets are _________________ |
| A. | non-luminous heavenly bodies |
| B. | luminous heavenly bodies that do not twinkle |
| C. | luminous heavenly bodies that twinkle |
| D. | luminous heavenly bodies revolving around a star |
| Answer» B. luminous heavenly bodies that do not twinkle | |
| 28. |
Siphon will fail to work if _________________ |
| A. | both its limbs are of unequal length |
| B. | the temperature of the liquids in the two vessels are the same |
| C. | the level of the liquid in the two vessels are at the same height |
| D. | the densities of the liquid in the two vessels are equal |
| Answer» D. the densities of the liquid in the two vessels are equal | |
| 29. |
RADAR is used for _________________ |
| A. | receiving a signals in a radio receiver |
| B. | detecting and locating the position of objects such as aeroplanes |
| C. | locating geostationary satellites |
| D. | locating submerged submarines |
| Answer» C. locating geostationary satellites | |
| 30. |
Oil raise up the wick in a lamp. The principle involves _________________ |
| A. | the liquid state of oil |
| B. | volatility of oil |
| C. | capillary action phenomenon |
| D. | the diffusion of oil through the wick |
| Answer» D. the diffusion of oil through the wick | |
| 31. |
Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit _________________ |
| A. | ultraviolet light |
| B. | radio waves |
| C. | visible light |
| D. | X-rays |
| Answer» D. X-rays | |
| 32. |
Mercury is commonly used as a thermometric fluid rather than water because _________________ |
| A. | specific heat of mercury is more than water |
| B. | density of mercury is more than the water |
| C. | mercury has greater visibility than water |
| D. | specific heat of mercury is less than water |
| Answer» D. specific heat of mercury is less than water | |
| 33. |
If BOMBAY is written as MYMYMY, how will TAMIL NADU be written in that code ? |
| A. | ALDALDALD |
| B. | MNUMNUMNU |
| C. | IATIATIAT |
| D. | TIATIATIA |
| Answer» C. IATIATIAT | |
| 34. |
Light from the star, Alpha Centauri, which is nearest to the earth after the sun, reaches the earth in _____________ |
| A. | 42 seconds |
| B. | 42 years |
| C. | 4.2 years |
| D. | 4.2 seconds |
| Answer» D. 4.2 seconds | |
| 35. |
Natural radioactivity was discovered by _________________ |
| A. | Ernest Rutherfor |
| B. | Enrico Fermi |
| C. | Henri Becquerel |
| D. | Marie Curie |
| Answer» D. Marie Curie | |
| 36. |
If GIVE is coded as 5137 and BAT is coded as 924 how is GATE coded ? |
| A. | 5724 |
| B. | 2547 |
| C. | 5247 |
| D. | 5427 |
| Answer» D. 5427 | |
| 37. |
In a certain code language, OPERATION is written as NODQBUJPO. How is INVISIBLE written in that code ? |
| A. | HMUHTHAKD |
| B. | JOWJTHAKD |
| C. | HMUHTJCMF |
| D. | JOWJTJCMF |
| Answer» D. JOWJTJCMF | |
| 38. |
If FISH is written as EHRG in a certain code, how would JUNGLE be written in that code ? |
| A. | TIMFKD |
| B. | ITNFKD |
| C. | KVOHMF |
| D. | ITMFKD |
| Answer» E. | |
| 39. |
If in a certain language if ENTRY is coded as 12345 and STEADY is coded as 931785, then state which is the correct code for word ENDEAR is |
| A. | 124179 |
| B. | 174189 |
| C. | 128174 |
| D. | 524519 |
| Answer» D. 524519 | |
| 40. |
If in a certain language MADRAS is coded as NBESBT, how is BOMBAY coded in that language ? |
| A. | CQOCBZ |
| B. | CPNCPZ |
| C. | CPOCBZ |
| D. | CPNCBX |
| Answer» D. CPNCBX | |
| 41. |
If in a certain language if ENTRY is coded as 12345 and STEADY is coded as 931785, then state which is the correct code for word NEATNESS is |
| A. | 21823698 |
| B. | 21732199 |
| C. | 21362199 |
| D. | 25196577 |
| Answer» C. 21362199 | |
| 42. |
In a certain case EXPLAINING is written as PXEALNIGNI. How is PRODUCED written in that code ? |
| A. | None of above |
| B. | ROPUDECD |
| C. | ORPUDECD |
| D. | ORPBUDEC |
| Answer» B. ROPUDECD | |
| 43. |
If in a certain code, BELIEF is written as AFKKDI.How is SELDOM written in that code ? |
| A. | TFKENP |
| B. | RFKENM |
| C. | RFKFNP |
| D. | RDKCNL |
| Answer» D. RDKCNL | |
| 44. |
In a certain code, PRODUCTIONS is written as QQPCVEUHPMT. How is ORIENTATION written in that code ? |
| A. | NSHFMVBSJNO |
| B. | PQJDOUBUJPO |
| C. | PSJFOVBSJNO |
| D. | PQJDOVBSJNO |
| Answer» E. | |
| 45. |
In a certain code, RIPPLE is written as 613382 and LIFE is written as 8192. How is PILLER written in that code ? |
| A. | 338816 |
| B. | 318286 |
| C. | 618826 |
| D. | 318826 |
| Answer» E. | |
| 46. |
In a certain language SIGHT is written as FVTUG. How is REVEAL written in the same language ? |
| A. | ERIRNY |
| B. | DQHQMX |
| C. | FSJSOZ |
| D. | YNRIRE |
| Answer» B. DQHQMX | |
| 47. |
If in a certain language, MADRAS is coded as NBESBT, how is BOMBAY coded in that code ? |
| A. | CQOCBZ |
| B. | CPNCBZ |
| C. | CPOCBZ |
| D. | CPNCBX |
| Answer» C. CPOCBZ | |
| 48. |
In a certain code, FAVOUR is written as EBUPTS. How is DANGER written in that code ? |
| A. | EBHHFS |
| B. | CBMHDS |
| C. | EBFHDS |
| D. | CBFFDS |
| Answer» C. EBFHDS | |
| 49. |
If in a code, MIND becomes KGLB and ARGUE becomes YPESC, then what will DIAGRAM be in that code ? |
| A. | LKBGYPK |
| B. | BGYPYEK |
| C. | GLPEYKB |
| D. | BGYEPYK |
| Answer» E. | |
| 50. |
If GIVE is coded as 5137 and BAT is coded as 924, how is GATE coded ? |
| A. | 2547 |
| B. | 5724 |
| C. | 5247 |
| D. | 5427 |
| Answer» D. 5427 | |