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MCQOPTIONS
This section includes 2016 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 1401. |
Blowing Air with open pipe is an example of : |
| A. | sothermal process |
| B. | sochroric process |
| C. | sobaric process |
| D. | diabatic process |
| Answer» D. diabatic process | |
| 1402. |
Refrigeration is a process which |
| A. | ills bacteria |
| B. | lows down the bacterial growth |
| C. | nactivates the bacteria |
| D. | lasmolyses the bacteria |
| Answer» C. nactivates the bacteria | |
| 1403. |
Energy in reflected light : |
| A. | oes not depends on the angle of incidence |
| B. | ncreases with the increase in angle |
| C. | ecreases with the increase in angle of incidence |
| D. | ecomes maximum for angle of incidence equal to 45° |
| Answer» C. ecreases with the increase in angle of incidence | |
| 1404. |
The first law of thermodynamics is simply the case of |
| A. | harle's law |
| B. | ewton's law of cooling |
| C. | he law of heat exchange |
| D. | he law of conservation of energy |
| Answer» E. | |
| 1405. |
Which of the following principle is used to produce ''low-temperatures' ? |
| A. | uper conductivity |
| B. | oule-Kelvin effect |
| C. | hermo-electric effect |
| D. | diabatic demagnetisation |
| Answer» E. | |
| 1406. |
The wavelength at which the peak of intensity of blackbody radiation occurs |
| A. | ncreases with increase in temperature |
| B. | ecreases with increase in temperature |
| C. | s the same at all temperatures |
| D. | oes not follow any pattern as temperature changes |
| Answer» C. s the same at all temperatures | |
| 1407. |
Which one of the following is not a feature of Indifference Curve? |
| A. | hey do not intersect each other |
| B. | hey slope downwards to the right |
| C. | hey are parallel to each other |
| D. | hey are concave to each other |
| Answer» E. | |
| 1408. |
Which of the following options correctly explains the term heat budget? |
| A. | t is a mode of transfer of heat through matter by molecular activity. |
| B. | t is the balance between incoming and outgoing radiation |
| C. | t is the radiation from the earth in the form of long waves. |
| D. | t is the amount of heat which the surface of earth receives from the sun. |
| Answer» C. t is the radiation from the earth in the form of long waves. | |
| 1409. |
The term ''Isoneph' indicates the lines of equal |
| A. | loudiness |
| B. | alinity |
| C. | ainfall |
| D. | ressure |
| Answer» B. alinity | |
| 1410. |
In Astrophysics, what name is given to a hypothetical hole in outer space from which stars and energy emerge? |
| A. | lack hole |
| B. | zone hole |
| C. | steroid belt |
| D. | hite hole |
| Answer» E. | |
| 1411. |
The time period of a pendulum when taken to the Moon would: |
| A. | emain the same |
| B. | ecrease |
| C. | ecome zero |
| D. | ncrease |
| Answer» E. | |
| 1412. |
Who enunciated the laws of planetary motion? |
| A. | icolaus Copernicus |
| B. | ohannes Kepler |
| C. | saac Newton |
| D. | alileo |
| Answer» C. saac Newton | |
| 1413. |
The centre of gravity of a sprinter during the race lies |
| A. | head of his feet |
| B. | ehind his feet |
| C. | t the centre of the body |
| D. | o the left side of the body |
| Answer» B. ehind his feet | |
| 1414. |
A spherical ball made of steel when dropped in mercury container |
| A. | ink in mercury |
| B. | ill be on the surface of mercury |
| C. | ill be partly immersed mercury |
| D. | ill dissolve in mercury |
| Answer» C. ill be partly immersed mercury | |
| 1415. |
Small bubbles are perfectly spherical because of |
| A. | ravity |
| B. | ressure |
| C. | iscosity |
| D. | urface tension |
| Answer» E. | |
| 1416. |
Which of the following liquids is most viscous? |
| A. | il |
| B. | ilk |
| C. | ater |
| D. | etrol |
| Answer» B. ilk | |
| 1417. |
Which of the following is not a property of heavy water ? |
| A. | oiling point of heavy water is lower than that or ordinary water |
| B. | ensity of heavy water is higher than that of ordinary water |
| C. | reezing point of heavy water is higher than that of ordinary water |
| D. | t produces corrosion |
| Answer» B. ensity of heavy water is higher than that of ordinary water | |
| 1418. |
If ice floating on water in a vessel melts, the water level in the vessel ________ . |
| A. | ncreases |
| B. | oes not change |
| C. | irst increases before decreasing |
| D. | ecreases |
| Answer» C. irst increases before decreasing | |
| 1419. |
Two rods, one of copper and other of steel, experience the same upthrust when placed in water.Thus, both have |
| A. | qual volume |
| B. | qual weight |
| C. | qual density |
| D. | qual mass |
| Answer» B. qual weight | |
| 1420. |
A small drop of oil spreads over water because : |
| A. | il has a higher surface tension |
| B. | ater has a higher surface tension |
| C. | il has a higher viscosity |
| D. | ater has a higher viscosity |
| Answer» C. il has a higher viscosity | |
| 1421. |
Which of the following liquids has the least density ? |
| A. | resh water |
| B. | alt water |
| C. | etrol |
| D. | ercury |
| Answer» D. ercury | |
| 1422. |
Water from soil enters into the root hairs owing to : |
| A. | tmospheric pressure |
| B. | apillary pressure |
| C. | oot pressure |
| D. | smotic pressure |
| Answer» C. oot pressure | |
| 1423. |
Soap bubble attains spherical shape due to ________ |
| A. | nertia |
| B. | ressure |
| C. | urface tension |
| D. | iscosity |
| Answer» D. iscosity | |
| 1424. |
Materials for rain proof coats and tents owe their water proof properties to |
| A. | urface tension |
| B. | iscosity |
| C. | pecific gravity |
| D. | lasticity |
| Answer» B. iscosity | |
| 1425. |
A needle or a pin floats on the surface of water because of |
| A. | urface tension |
| B. | urface energy |
| C. | iscosity |
| D. | dhesive force |
| Answer» B. urface energy | |
| 1426. |
If the diameter of a capillary is doubled, then the rise of water in it will be |
| A. | wo times |
| B. | alf |
| C. | our times |
| D. | o change |
| Answer» C. our times | |
| 1427. |
The oil in the wick of an oil lamp rises up due to: |
| A. | apillary action |
| B. | ow viscosity of oil |
| C. | ravitational force |
| D. | ressure difference |
| Answer» B. ow viscosity of oil | |
| 1428. |
Surface tension in a liquid is due to : |
| A. | dhesive force betweenmolecules |
| B. | ohesive force between molecules |
| C. | ravitational force between molecules |
| D. | lectrical force between molecules. |
| Answer» C. ravitational force between molecules | |
| 1429. |
If an ordinary glass tube and a glass capillary tube are both dipped in a beaker of water, water rises in |
| A. | oth |
| B. | nly the glass tube |
| C. | nly the capillary tube |
| D. | either |
| Answer» B. nly the glass tube | |
| 1430. |
An ice block with a piece of lead embeded in it floats in water. If ice melts the water level |
| A. | ises |
| B. | alls |
| C. | emains same |
| D. | alls first and then rises |
| Answer» C. emains same | |
| 1431. |
Oil rises up the wick in a lamp because |
| A. | il is very light |
| B. | f the diffusion of oil through the wick |
| C. | f the surface tension phenomenon |
| D. | f the capillary action phenomenon |
| Answer» E. | |
| 1432. |
A liquid disturbed by stirring comes to rest due to |
| A. | ensity |
| B. | urface tension |
| C. | iscosity |
| D. | entripetal force |
| Answer» D. entripetal force | |
| 1433. |
Which of the following is a result of Surface tension ? |
| A. | ravitational pull |
| B. | iscosity |
| C. | apillary action |
| D. | adiation |
| Answer» D. adiation | |
| 1434. |
A bottle of sodalime is grasped by the neck and swung briskly in a vertical circle, Near which portion of the bottle do the bubbles collect? |
| A. | ear the bottom |
| B. | n the middle of the bottom |
| C. | ear the neck |
| D. | ubbles remain distributed uniformly |
| Answer» D. ubbles remain distributed uniformly | |
| 1435. |
The surface tension of water on adding detergent to it |
| A. | ncreases |
| B. | ecreases |
| C. | o change |
| D. | ecomes zero |
| Answer» C. o change | |
| 1436. |
According to the theory of relativity, which of the following always remains constant ? |
| A. | ength of an object |
| B. | ime |
| C. | pace |
| D. | elocity of light |
| Answer» E. | |
| 1437. |
The rate of change of linear momentum of a body falling freely under gravity is equal to it's ________ ? |
| A. | inetic Energy |
| B. | eight |
| C. | otential Energy |
| D. | mpulse |
| Answer» C. otential Energy | |
| 1438. |
Consider the following statements :1. There is no net moment on a body which is in equilibrium.2. The momentum of a body is always conserved.3. The kinetic energy of an object is always conserved.Which of the statements given above is/are correct? |
| A. | , 2 and 3 |
| B. | and 3 only |
| C. | and 2 only |
| D. | only |
| Answer» D. only | |
| 1439. |
If a force acts upon two objects at rest, and having different masses for the same amount of time, then which one of the following will be the same for both the objects? |
| A. | cceleration |
| B. | inetic Energy |
| C. | elocity |
| D. | omentum |
| Answer» E. | |
| 1440. |
Kepler's law of planetary motion states that the square of the time period is proportional to the |
| A. | emi-major axis |
| B. | quare of the semi-major axis |
| C. | ube of the semi-major axis |
| D. | ourth power of the semi-major axis |
| Answer» D. ourth power of the semi-major axis | |
| 1441. |
Which one is not a part of Kepler's Law? |
| A. | aw of orbits |
| B. | aw of areas |
| C. | aw of speed |
| D. | aw of periods |
| Answer» D. aw of periods | |
| 1442. |
An aircraft can perform aerobatic manoeuvres in a vertical loop because of |
| A. | ravity |
| B. | entripetal force |
| C. | eight |
| D. | entrifugal force |
| Answer» B. entripetal force | |
| 1443. |
The spoon dropped by an astronaut in a satellite will |
| A. | all to the floor |
| B. | emain stationary |
| C. | ontinue to follow the motion of the satellite |
| D. | ove tangentially away |
| Answer» D. ove tangentially away | |
| 1444. |
The hair of shaving brush clings together when removed from water due to |
| A. | urface tension |
| B. | iscosity |
| C. | lasticity |
| D. | riction |
| Answer» B. iscosity | |
| 1445. |
When a detergent is added to pure water, its surface tension |
| A. | ncreases |
| B. | ecreases |
| C. | emains constant |
| D. | ecomes infinite |
| Answer» C. emains constant | |
| 1446. |
Ball pen functions on the principle of : |
| A. | iscosity |
| B. | oyle's Law |
| C. | ravitational force |
| D. | urface tension |
| Answer» E. | |
| 1447. |
Name the process by which bubbles from liquid are formed? |
| A. | ffervescence |
| B. | urface Tension |
| C. | urface Energy |
| D. | egasification |
| Answer» B. urface Tension | |
| 1448. |
A drop of liquid assumes spherical shape because: |
| A. | ntermolecular forces are strong in liquids |
| B. | sphere has the least surface area for a given volume |
| C. | sphere has the largest surface area for a given volume |
| D. | nter molecular forces are weak in liquids |
| Answer» C. sphere has the largest surface area for a given volume | |
| 1449. |
Sprayer functions on |
| A. | ernouli's principle |
| B. | rchemede's principle |
| C. | ascal's law |
| D. | loatation principle |
| Answer» B. rchemede's principle | |
| 1450. |
An oil drop spreads over water because |
| A. | il is lighter than water |
| B. | il is more viscous |
| C. | il does not mix with water |
| D. | ater has a higher surface tension |
| Answer» E. | |