MCQOPTIONS
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MCQOPTIONS
This section includes 1292 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
Quantitatively, the inertia of an object is measured by ______________._x005F_x000D_ |
| A. | its weight |
| B. | the product of its mass and velocity |
| C. | its mass |
| D. | the product of its mass and acceleration |
| Answer» D. the product of its mass and acceleration | |
| 352. |
Q = mcdT refers to |
| A. | Enthalpy formula |
| B. | Heat Transfer formula |
| C. | Specific Heat formula |
| D. | Heat of Vaporization |
| Answer» D. Heat of Vaporization | |
| 353. |
Pressure x Area = ?_x005F_x000D_ |
| A. | Thrust |
| B. | Inertia |
| C. | Momentum |
| D. | Volume |
| Answer» B. Inertia | |
| 354. |
Pressure is measured in terms of_x005F_x000D_ |
| A. | Mass & Density |
| B. | Work done |
| C. | Force and Area |
| D. | Force and Distance |
| Answer» D. Force and Distance | |
| 355. |
Pressure is measured in terms of |
| A. | Mass & Density |
| B. | Work done |
| C. | Force and Area |
| D. | Force and Distance |
| Answer» D. Force and Distance | |
| 356. |
Pieces of camphor placed on water move about rapidly. This is because of |
| A. | diffusion |
| B. | viscosity |
| C. | surface tension |
| D. | capillarity |
| Answer» D. capillarity | |
| 357. |
Physical quantities, which have _______ only and no _______ are called scalar quantities. |
| A. | direction, magnitude |
| B. | magnitude, direction |
| C. | speed, velocity |
| D. | velocity, speed |
| Answer» C. speed, velocity | |
| 358. |
Pitot tube is used to measure |
| A. | static pressure |
| B. | velocity at stagnation point |
| C. | stagnation pressure |
| D. | dynamic pressure |
| Answer» D. dynamic pressure | |
| 359. |
Pick out the only scalar quantity |
| A. | power |
| B. | Electric field |
| C. | magnetic momentum |
| D. | average velocity |
| Answer» B. Electric field | |
| 360. |
Pick out the only vector quantity |
| A. | pressure |
| B. | impulse |
| C. | gravitational potential |
| D. | co-efficient of friction |
| Answer» C. gravitational potential | |
| 361. |
'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 | |
| 362. |
photosynthesis takes place faster in |
| A. | darkness |
| B. | red light |
| C. | white light |
| D. | yellow light |
| Answer» D. yellow light | |
| 363. |
Persistence of vision is the principle behind |
| A. | Telescope |
| B. | Periscope |
| C. | Cinema |
| D. | Microscope |
| Answer» D. Microscope | |
| 364. |
Ozone protects biosphere from ___________ |
| A. | X Â- rays |
| B. | Gamma rays |
| C. | Ultraviolet rays |
| D. | Infrared rays |
| Answer» D. Infrared rays | |
| 365. |
Parasec is ythe unit of |
| A. | distance |
| B. | time |
| C. | intensity of light |
| D. | magnetic line |
| Answer» B. time | |
| 366. |
One Watt = ? |
| A. | 1 Joule/sec |
| B. | 1 erg/sec |
| C. | 1 Pascal/sec |
| D. | 1 m/s |
| Answer» B. 1 erg/sec | |
| 367. |
Optical fiber works on the principle of - |
| A. | Diffusion |
| B. | Total Internal Reflection |
| C. | Scattering |
| D. | Refraction |
| Answer» C. Scattering | |
| 368. |
One step in the production of hydroelectric power involves _____. |
| A. | falling water that turns a turbine |
| B. | electric current flowing across a dam |
| C. | hot water from under the ground |
| D. | tides that pour through a barrier dam |
| Answer» B. electric current flowing across a dam | |
| 369. |
Optical fibre works on which of the following principle of light? |
| A. | Reflection |
| B. | Refraction |
| C. | Diffraction |
| D. | Total internal reflection |
| Answer» E. | |
| 370. |
Optical fiber works on the principle of |
| A. | Scattering |
| B. | interference |
| C. | total internal reflection |
| D. | refraction |
| Answer» D. refraction | |
| 371. |
One nanometer is equal to _____________ meters. |
| A. | 10 raised to the power (Â3) |
| B. | 10 raised to the power (Â-6) |
| C. | 10 raised to the power (Â-9) |
| D. | 10 raised to the power (Â-12) |
| Answer» D. 10 raised to the power (Â-12) | |
| 372. |
One nanometer is_x005F_x000D_ |
| A. | 10-11Â m |
| B. | 10-10Â m |
| C. | 10-8Â m |
| D. | 10-9Â m |
| Answer» E. | |
| 373. |
One light year is approximately equal to |
| A. | 10^12 mts |
| B. | 10^16 mts |
| C. | 10^11 mts |
| D. | 10^13 mts |
| Answer» C. 10^11 mts | |
| 374. |
One horse power is |
| A. | 68 watts |
| B. | 746 watts |
| C. | 786 watts |
| D. | 764 watts |
| Answer» C. 786 watts | |
| 375. |
One Gigabyte = ? (in decimal value) |
| A. | 1000 bytes |
| B. | 10002Â bytes |
| C. | 10003Â bytes |
| D. | 10004Â bytes |
| Answer» D. 10004Â bytes | |
| 376. |
One billionth of a second is called |
| A. | microsecond |
| B. | picoseconds |
| C. | millisecond |
| D. | nanosecond |
| Answer» E. | |
| 377. |
One astronomical unit is the average distance between |
| A. | Earth and the Sun |
| B. | Earth and the Moon |
| C. | Jupiter and the Sun |
| D. | Pluto and the Sun |
| Answer» B. Earth and the Moon | |
| 378. |
On which principle does the hydraulic lift works? |
| A. | Newton's law |
| B. | Pascal's law |
| C. | Archimedes's law |
| D. | Joule's law |
| Answer» C. Archimedes's law | |
| 379. |
On the Kelvin scale ,the melting point of ice is |
| A. | 373K |
| B. | 100K |
| C. | 273K |
| D. | 0 K |
| Answer» D. 0 K | |
| 380. |
On which day ' National Science Day ' is celebrated in India ? |
| A. | 44958 |
| B. | 45689 |
| C. | 46054 |
| D. | 46784 |
| Answer» E. | |
| 381. |
Of the two bulbs, one glows brighter than the other. Which bulb has a higher resistance?_x005F_x000D_ |
| A. | Brightness is independent of resistance |
| B. | The bright bulb |
| C. | Both have the same resistances |
| D. | The dim bulb |
| Answer» E. | |
| 382. |
Objects float on water based on ___. |
| A. | Newton's third law of motion |
| B. | Hooke's law |
| C. | Faraday's law |
| D. | Archimedes principle |
| Answer» E. | |
| 383. |
Number of basic SI unit is |
| A. | 4 |
| B. | 7 |
| C. | 6 |
| D. | 5 |
| Answer» C. 6 | |
| 384. |
No current will flow between two charged bodies if they have the same |
| A. | resistance |
| B. | charge |
| C. | potential |
| D. | charge/ potential ratio |
| Answer» D. charge/ potential ratio | |
| 385. |
Newton's second law of motion ............_x005F_x000D_ |
| A. | is also called as law of conservation of momentum. |
| B. | is also called as law of inertia |
| C. | describes the relationship between the forces on two interacting objects. |
| D. | explains about change in momentum. |
| Answer» E. | |
| 386. |
Newton's first law is also known as _______. |
| A. | Law of friction |
| B. | Law of moments |
| C. | Law of Inertia |
| D. | Law of motion |
| Answer» D. Law of motion | |
| 387. |
Negative acceleration is in the opposite direction of: |
| A. | force |
| B. | distance |
| C. | velocity |
| D. | momentum |
| Answer» D. momentum | |
| 388. |
Nautical miles is a unit of distance used in |
| A. | Navigation |
| B. | Road mile |
| C. | Astronomy |
| D. | Measuring the boundaries of a nation |
| Answer» B. Road mile | |
| 389. |
Name the type of mirror used in the headlight of vehicles |
| A. | Plano-convex mirror |
| B. | Convex mirror |
| C. | Plane mirror |
| D. | Concave mirror |
| Answer» E. | |
| 390. |
Multiplication of equivalent weight and valency of an element is equal to ______. |
| A. | Density |
| B. | Relative temperature |
| C. | Atomic weight |
| D. | Atomicity |
| Answer» D. Atomicity | |
| 391. |
Motion of a train is an example of ______. |
| A. | Rotatory motion |
| B. | Spin motion |
| C. | Projectile motion |
| D. | Translatory motion |
| Answer» E. | |
| 392. |
Motion of a 'Spinning top' is an example of |
| A. | Centripetal Force |
| B. | Centrifugal Force |
| C. | Gravitational Force |
| D. | Frictional Force |
| Answer» B. Centrifugal Force | |
| 393. |
Mirages are formed primarily due to ___ of light. |
| A. | Reflection |
| B. | Diffusion |
| C. | Refraction |
| D. | Scattering |
| Answer» D. Scattering | |
| 394. |
Momentum is measured as the product of : |
| A. | Mass and inertia |
| B. | Mass and force |
| C. | Mass and velocity |
| D. | Mass and acceleration |
| Answer» D. Mass and acceleration | |
| 395. |
Mohan, having a mass of 40 kg, runs up a staircase of 50 steps in 10 s. If the height of each step is 15 cm, then what is his power? |
| A. | 300 W |
| B. | 200 W |
| C. | 100 W |
| D. | 400 W |
| Answer» B. 200 W | |
| 396. |
Modem is used mostly for ? |
| A. | A modern empty memory modules |
| B. | Connecting to internet |
| C. | Mostly for file system |
| D. | All the above |
| Answer» C. Mostly for file system | |
| 397. |
More density of the particles in the medium through which sound travels, creates more __________ and vice versa._x005F_x000D_ |
| A. | pressure |
| B. | energy |
| C. | power |
| D. | force |
| Answer» B. energy | |
| 398. |
Mirage is an example of |
| A. | Reflection of light & Refraction of light |
| B. | Dispersion of light |
| C. | Total Internal Reflection |
| D. | Refraction of light & Total Internal Reflection of light |
| Answer» E. | |
| 399. |
Microwave communication uses high-frequency. |
| A. | 1 |
| B. | |
| C. | |
| D. | |
| Answer» B. | |
| 400. |
Mirage is due to |
| A. | Magnetic disturbances in the atmosphere |
| B. | Equal heating of different parts of the atmosphere |
| C. | Unequal heating of different parts of the atmosphere |
| D. | Depletion of ozone layer in the atmosphere |
| Answer» D. Depletion of ozone layer in the atmosphere | |