MCQOPTIONS
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MCQOPTIONS
This section includes 563 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge (GK) knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
'Parsec' is the unit measurement of - |
| A. | Density of stars |
| B. | Astronomical distance |
| C. | Brightness of heavenly bodies |
| D. | Orbital velocity of giant stars |
| Answer» C. Brightness of heavenly bodies | |
| 352. |
Spring tides occur when: |
| A. | the moon, the sun and the earth are in the same line |
| B. | the sun is closest to earth |
| C. | the moon is farthest from earth |
| D. | the earth is at right angles with the sun and the moon |
| Answer» B. the sun is closest to earth | |
| 353. |
Why do brads not have respiratory trouble at the time of flying at high all? |
| A. | Their lungs are very large |
| B. | They fly inactively |
| C. | They have extra air sacs |
| D. | They use less |
| Answer» D. They use less | |
| 354. |
Curie is the unit of |
| A. | radioactivity |
| B. | temperature |
| C. | heat |
| D. | energy |
| Answer» B. temperature | |
| 355. |
The method of magnetization is: |
| A. | hammering a magnet |
| B. | heating a magnet |
| C. | passing direct current through it |
| D. | passing alternating current through it |
| Answer» B. heating a magnet | |
| 356. |
The characteristic invalid for heat radiation is that it travels |
| A. | in a straight line |
| B. | in all directions |
| C. | with the speed of light |
| D. | heating the medium through which it passes |
| Answer» D. heating the medium through which it passes | |
| 357. |
Supersonic plane fly with the speed - |
| A. | less than the speed of sound |
| B. | of sound |
| C. | greater than the speed of sound |
| D. | of light |
| Answer» D. of light | |
| 358. |
At boiling point of liquids, its : |
| A. | Temperature increases |
| B. | Atmospheric pressure increases |
| C. | Timperature remains increases |
| D. | Vapour pressure decreases |
| Answer» D. Vapour pressure decreases | |
| 359. |
The element of Electric stove is made of |
| A. | Copper |
| B. | Invar |
| C. | Magnalium |
| D. | Nicrome |
| Answer» E. | |
| 360. |
Why does bleeding occur through the nose in high mountainous regions? |
| A. | The pressure of blood in capillaries is greater than the outside pressure |
| B. | The pressure at high altitudes is greater than that on the plains |
| C. | The blood pressure of a person increases at high altitudes |
| D. | The blood pressure fluctuates and finally decreases drastically |
| Answer» D. The blood pressure fluctuates and finally decreases drastically | |
| 361. |
Why does a cannon recoil after firing? |
| A. | Conservation of energy |
| B. | Backward thrust of gases produced |
| C. | NeMon's third law of motion |
| D. | Newton's first law of motion |
| Answer» D. Newton's first law of motion | |
| 362. |
"Curie" is unit of : |
| A. | Radioactivity |
| B. | Temperature |
| C. | Heat |
| D. | Energy |
| Answer» B. Temperature | |
| 363. |
In the process of magnetization of a bar |
| A. | The entire bulk of the bar gets magnetized |
| B. | Only the surface of the bar gets magnetized |
| C. | Only the ends of the bar get magnetized |
| D. | Only some parts of the outer layers of the bar get magnetized |
| Answer» B. Only the surface of the bar gets magnetized | |
| 364. |
Which of the following have the same unit? |
| A. | Work and power |
| B. | Torque and moment of inertia |
| C. | Work and torque |
| D. | Torque and angular momentum |
| Answer» D. Torque and angular momentum | |
| 365. |
Loudness of sound varies directly with vibrating body s |
| A. | Intensity |
| B. | Amplitude |
| C. | Pitch |
| D. | Quality |
| Answer» C. Pitch | |
| 366. |
Which one of the following determines the sharpness of image in a camera? |
| A. | The aperture |
| B. | The exposure time |
| C. | The focal length of the lens |
| D. | Size of the camera |
| Answer» B. The exposure time | |
| 367. |
Which of the following is responsible for permanent hardness of water? |
| A. | magnesium bicarbonate |
| B. | sodium chloride |
| C. | calcium sulphate |
| D. | calcium bicarbonate |
| Answer» D. calcium bicarbonate | |
| 368. |
Respiration in the absence of air is called - |
| A. | Aerobic respiration |
| B. | Anaerobic respiration |
| C. | Muscular respiration |
| D. | Molecular respiration |
| Answer» C. Muscular respiration | |
| 369. |
Which of the following liquids has the least density? |
| A. | Fresh water |
| B. | Salt water |
| C. | Petrol |
| D. | Mercury |
| Answer» D. Mercury | |
| 370. |
The mass density of Kerosene is: |
| A. | more than water |
| B. | equal to water |
| C. | Less than water |
| D. | None of the above |
| Answer» D. None of the above | |
| 371. |
Which of these travels in glass with minimum velocity? |
| A. | red light |
| B. | violet light |
| C. | green light |
| D. | yellow light |
| Answer» C. green light | |
| 372. |
The filament of electric bulb is made of |
| A. | Iron |
| B. | Nichrome |
| C. | Tungsten |
| D. | Graphite |
| Answer» D. Graphite | |
| 373. |
If a carrier wave of 1000 kHz is used to carry the signal, the length of transmitting antenna will be equal to . |
| A. | 300 m |
| B. | 30 m |
| C. | 3 m |
| D. | 0.3 m |
| Answer» B. 30 m | |
| 374. |
is the cell organelle, in which the biochemical processes of respiration and energy production occur. |
| A. | Mitochondria |
| B. | Chloroplast |
| C. | Ribosomes |
| D. | Nucleus |
| Answer» B. Chloroplast | |
| 375. |
Which of the following is the unit of perceived loudness of sound? |
| A. | Decibel |
| B. | Sone |
| C. | Hertz |
| D. | Phon |
| Answer» C. Hertz | |
| 376. |
When the milk is churned vigorously the cream from it is separated out clue to |
| A. | Centripetal force |
| B. | Gravitational force |
| C. | Frictional force |
| D. | Centrifugal force |
| Answer» E. | |
| 377. |
The 'Choke' used with a tube light is basically |
| A. | an inductor |
| B. | a capacitor |
| C. | a transformer |
| D. | a resistor |
| Answer» B. a capacitor | |
| 378. |
When milk is churned, the cream separates from it clue to: |
| A. | Frictional force |
| B. | Centrifugal force |
| C. | Gravitation al force |
| D. | Viscous forces |
| Answer» C. Gravitation al force | |
| 379. |
In electronics what comes under tank circuit? |
| A. | Resistance and capacity |
| B. | Resistance and inductance |
| C. | Capacity and inductance |
| D. | Resistance, capacity and inductance |
| Answer» D. Resistance, capacity and inductance | |
| 380. |
Which of the following laws validates the statement that matter can neither be created nor destroyed? |
| A. | Law of conservation of energy |
| B. | Le Chatelier's Principle |
| C. | Law of conservation of mass |
| D. | Law of osmosis |
| Answer» D. Law of osmosis | |
| 381. |
Which of the following is not a property of heavy water? |
| A. | Boiling point of heavy water is lower than that or ordinary water |
| B. | Density of heavy water is higher than that of ordinary water |
| C. | Freezing point of heavy water is higher than that of ordinary water |
| D. | It produces corrosion |
| Answer» B. Density of heavy water is higher than that of ordinary water | |
| 382. |
Who among the following developed the technology of under-ground nuclear explosion? |
| A. | Dr. Homi J. Bhabha |
| B. | Dr. Vikram Sarabhai |
| C. | Dr. Raja Ramanna |
| D. | Dr. P. K. Iyengar |
| Answer» B. Dr. Vikram Sarabhai | |
| 383. |
In which of the following processes is energy released? |
| A. | Respiration |
| B. | Photosynthesis |
| C. | Ingestion |
| D. | Absorption |
| Answer» B. Photosynthesis | |
| 384. |
Which unit we use to express nuclear sizes? |
| A. | Tesla |
| B. | Newton |
| C. | Fermi |
| D. | None of above |
| Answer» D. None of above | |
| 385. |
If a current of 1.5 A is maintained in a resistor of 10 2, then the energy dissipated in the resistor in 1 minute will be : |
| A. | 15 W |
| B. | 22.5 W |
| C. | 135 W |
| D. | 1350 W |
| Answer» E. | |
| 386. |
Unit of resistance is |
| A. | volt x ampere |
| B. | volt/ampere |
| C. | ampere/volt |
| D. | volt x ampere |
| Answer» C. ampere/volt | |
| 387. |
The resistance of a conductor is inversely proportional to its - |
| A. | temperature |
| B. | resistivity |
| C. | area of cross section |
| D. | length |
| Answer» D. length | |
| 388. |
Which of the following is the unit of distance in navigation? |
| A. | Knot |
| B. | Nautical mile |
| C. | Bar |
| D. | Angstrom |
| Answer» C. Bar | |
| 389. |
Fat can be separated from milk in a cream separator because of . |
| A. | cohesive force |
| B. | gravitational force |
| C. | centripetal force |
| D. | centrifugal force |
| Answer» E. | |
| 390. |
How much calorie of energy is released by a boiled egg? |
| A. | 40 |
| B. | 50 |
| C. | 60 |
| D. | 77 |
| Answer» E. | |
| 391. |
Who measured the velocity of light first? |
| A. | Galileo |
| B. | Newton |
| C. | Romer |
| D. | Einstein |
| Answer» D. Einstein | |
| 392. |
The pitch of the sound is measured by its: |
| A. | Intensity |
| B. | waveform |
| C. | Frequency |
| D. | Loudness |
| Answer» D. Loudness | |
| 393. |
Which of the following is the unit of Astronomical Distance? |
| A. | metre/sec. |
| B. | Sec. |
| C. | Para/sec. |
| D. | Parsec |
| Answer» E. | |
| 394. |
The minimum number of geostationary satellites needed for un-interrupted global coverage is |
| A. | 3 |
| B. | 2 |
| C. | 4 |
| D. | 1 |
| Answer» C. 4 | |
| 395. |
Water flows through a horizontal pipe at a constant volumetric rate. At a location where the cross sectional area decreases, the velocity of the fluid: |
| A. | increases |
| B. | decreases |
| C. | stays the same |
| D. | none of the above |
| Answer» B. decreases | |
| 396. |
Which one of the following is called a red planet? |
| A. | Venus |
| B. | Mercury |
| C. | Mars |
| D. | Jupiter |
| Answer» D. Jupiter | |
| 397. |
The term Higgs Boson' is associated with |
| A. | Nano Technology |
| B. | Oncology |
| C. | God Particle |
| D. | Stem Cell Research |
| Answer» D. Stem Cell Research | |
| 398. |
The brightest planet is . |
| A. | Jupiter |
| B. | Mars |
| C. | Venus |
| D. | Mercury |
| Answer» D. Mercury | |
| 399. |
Heat flows as a result of difference of |
| A. | Temperature |
| B. | Density |
| C. | mass |
| D. | Volume |
| Answer» B. Density | |
| 400. |
For photoelectric effect to take place, the metal used as the cathode should have |
| A. | high melting point |
| B. | low melting point |
| C. | low work function |
| D. | low resistance |
| Answer» D. low resistance | |