Q1361. ATM stands for
(a) Automatic Teller Machine
(b) Automated Teller Machine
(c) Automatic Tally Machine
(d) Automated Tally Mechanism
Ans: (a)
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Q1362. It is difficult to cook rice
(a) at the top of a mountain
(b) at the sea level
(c) under a mine
(d) same anywhere
Ans: (a)
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Q1363. Global warming is expected to result in
(a) increase in level of sea
(b) change in crop pattern
(c) change in coast line
(d) All of the above
Ans: (d)
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Q1364. Two stones of different masses are dropped simultaneously from the top of a building
(a) Smaller stone reaches the ground earlier
(b) Larger stone reaches the ground earlier
(c) Both the stones reach the ground at the same time
(d) Depends on the composition of the stone
Ans: (c)
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Q1365. A concave lens always forms an image which is
(a) real and erect
(b) virtual and erect
(c) real and inverted
(d) virtual and inverted
Ans: (b)
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Q1366. In which of the following processes is energy released ?
(a) Respiration
(b) Photosynthesis
(c) Ingestion
(d) Absorption
Ans: (a)
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Q1367. The bats can fly in the dark because
(a) they can see the objects in darkness
(b) they have weak legs and are likely to be attacked by predators
(c) they generate flashes of light
(d) they generate ultrasonic sound waves
Ans: (d)
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Q1368. If a boy sitting in a train, which is moving at a constant velocity, throws a ball straight up into the air, the ball will
(a) fall in front of him
(b) fall behind him
(c) fall into his hand
(d) None of the above
Ans: (c)
________________________________________
Q1369. The sky appears blue because
(a) all colours interfere to produce blue
(b) in white light, the blue component dominates
(c) the atmosphere scatters blue colour more than the others
(d) it is actually blue
()
Ans: (c)
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Q1370. The scientist who first sent electromagnetic waves to distant places is
(a) James Clerk Maxwell
(b) Heinrich Hertz
(c) Thomas Alva Edison
(d) John Logie Baird
()
Ans: (c)
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Q1371. The period of revolution of a geostationary satellite is
(a) 365 days
(b) 30 days
(c) 24 hours
(d) changing continuously
Ans: (c)
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Q1372. Optical fibres are based on the phenomenon of
(a) Interference
(b) Dispersion
(c) Diffraction
(d) Total Internal Reflection
Ans: (d)
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Q1373. The time period of a pendulum when taken to the Moon would:
(a) remain the same
(b) decrease
(c) become zero
(d) increase
Ans: (d)
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Q1374. Among the following materials sound travels fastest in
(a) Steel (b) Air
(c) Vacuum (d) Water
Ans: (a)
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Q1375. When a bar magnet is cut into two equal halves, the pole strength of each piece –
(a) becomes double
(b) becomes half
(c) becomes zero
(d) remains the same
Ans: (d)
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Q1376. Lakes freeze in cold countries in winter, leaving the water underneath at
(a) 0°C (b) 0°F
(c) 4°C (d) 4°F
Ans: (c)
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Q1377. Amount of water vapour in the atmosphere is measured in terms of
(a) Humidity
(b) Droplets
(c) Smog
(d) All of the above
Ans: (a)
________________________________________
Q1378. Eclipses occur due to which optical phenomena?
(a) Reflection (b) Refraction
(c) Rectilinear propagation
(d) Diffraction
Ans: (c)
________________________________________
Q1379. The filament of electric bulb is made up of :
(a) Copper (b) Nichrome
(c) Lead (d) Tungsten
Ans: (d)
________________________________________
Q1380. Persistance of vision is the principle behind
(a) Camera (b) Spectroscope
(c) Cinema (d) Periscope
Ans: (c)
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Q1381. The nature of fuse wire is
(a) high resistance and low melting point.
(b) high resistance and high melting point.
(c) low resistance and high melting point.
(d) low resistance and low melting point.
Ans: (a)
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Q1382. Air coolers are more suitable for
(a) hot and humid climate
(b) hot and dry climate
(c) cool and humid climate
(d) cool and dry climate
Ans: (b)
________________________________________
Q1383. The material used in the fabrication of a transistor is
(a) Aluminium (b) Copper
(c) Silicon (d) Silver
Ans: (c)
________________________________________
Q1384. The device which converts sound energy into electrical energy is called
(a) Amplifier (b) Speaker
(c) Microphone (d) Transmitter
Ans: (c)
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Q1385. Should cars have bumpers that collapse under impact?
(a) Yes, since the offending car should get damaged and pay for the mistake
(b) No, since it would be very expensive to get the car repaired
(c) No, since the colliding car would then ram into the occupants and kill them
(d) Yes, since they help to absorb the impact of a collision and keep the occupants safe
Ans: (d)
________________________________________
Q1386. Myopia is the same as
(a) Near sightedness
(b) Astigmatism
(c) Presbyopia
(d) Long sightedness
Ans: (a)
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Q1387. A vacuum cleaner works on the principle of pressure difference.
On the moon it will
(a) work as efficiently as on the earth
(b) not work at all
(c) work with reduced efficiency
(d) work with increased efficiency
Ans: (b)
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Q1388. Who enunciated the laws of planetary motion?
(a) Nicolaus Copernicus
(b) Johannes Kepler
(c) Isaac Newton
(d) Galileo
Ans: (b)
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Q1389. The velocity of sound is more in
(a) water (b) air
(c) steel (d) wood
Ans: (c)
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Q1390. The audio signals of TV are
(a) Amplitude modulated
(b) Frequency modulated
(c) Unmodulated
(d) Velocity modulated
Ans: (b)