English RAS/RTS (Pre) 1992
Q2241. The density of water will reach its maximum value at the temperature of
A 0ºC
B 4ºC
C 50ºC
D 100ºC
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Correct answer: 4ºC
English UPPCS (Mains) 2008 43rd BPSC (Pre) 1999 42nd BPSC (Pre) 1998
Q2242. At which temperature density of water is maximum?
A 4ºC
B 0ºC
C – 4ºC
D – 8ºC
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Correct answer: 4ºC
English UPPCS (Mains) 2015
Q2243. The maximum density of water is at
A 373 Kelvin
B 277 Kelvin
C 273 Kelvin
D 269 Kelvin
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Correct answer: 277 Kelvin
Q2244. Why does an iron nail float on mercury while it sinks in water?
A Due to less chemical interaction of iron with mercury than it is with water
B Iron is heavier than water and lighter than mercury
C Iron has greater density than water and lesser than mercury
D Mercury is heavier than water
Show answer
Correct answer: Iron has greater density than water and lesser than mercury
English UP Lower Sub. (Spl)(Pre) 2004
Q2245. A needle sinks in water whereas a ship made of iron floats on it because
A The edge of the needle is pointed
B The ship is flat
C The ship driver, by power flat engine
D Specific gravity of the needle is greater than that of water displaced by it
Show answer
Correct answer: Specific gravity of the needle is greater than that of water displaced by it
English UPPCS (Mains) 2012
Q2246. An iron needle floats on the surface of water due to
A Upthrust of water
B Surface tension
C Viscosity
D Gravitational force
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Correct answer: Surface tension
Q2247. While lifting a bucket of water from a well, we feel that the bucket
A Becomes heavier above the surface of water
B Becomes lighter above the surface of water
C Loses stability on coming out of the water
D Has gained mass on coming out of water
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Correct answer: Becomes heavier above the surface of water
English UPRO/ARO (Mains) 2014
Q2248. 200 gm of water is filled in a weightless balloon. Its weight in water will be
A Zero
B 100 gm
C 200 gm
D 400 gm
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Correct answer: Zero
English Himachal Pradesh PSC (Pre) 2019 Jharkhand PCS (Pre) 2013
Q2249. The separation of cream from milk by churning is due to
A Gravitational force
B Cohesive force
C Centrifugal force
D None of the above
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Correct answer: Centrifugal force
Q2250. The clouds float in the atmosphere because of their low
A Temperature
B Velocity
C Pressure
D Density
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Correct answer: Density
English Maharashtra PSC (Pre) 2018 Jharkhand PCS (Pre) 2013
Q2251. Which of the following elements was first produced artificially?
A Neptunium
B Plutonium
C Francium
D Technetium
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Correct answer: Technetium
Q2252. While floating in a sea what part of an iceberg is above the surface of the sea?
A 1/9
B 1/10
C 1/6
D 1/4
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Correct answer: 1/9
Q2253. An ice cube is floating in a glass of water. What happens to the water level when the ice melts? It
A Rises
B Falls
C Remains the same
D First rises and then falls
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Correct answer: Remains the same
Q2254. A body floats at 4ºC water. If temperature reaches 100ºC, then
A The body will sink
B No change
C More part of the body will submerge
D The body will float freely
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Correct answer: The body will sink
English UP Lower Sub. (Pre) 2002
Q2255. Why it is easier to swim in the sea than in a river?
A The sea water is salty
B The sea water is deep
C The sea water is heavier
D The sea water is lighter
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Correct answer: The sea water is salty
English UP Lower Sub. (Pre) 2004 UPPCS (Pre) 1992
Q2256. When a ship enters a sea from a river, what happens?
A It rises a little
B It remains at the same level
C It sinks a little
D It immersed in the bottom of the sea
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Correct answer: It rises a little
English Arunachal Pradesh PSC (Pre) 2016 MPPCS (Pre) 2012
Q2257. Static science is associated with
A Dynamic situation
B Situation of rest
C Mental situation
D Data analyzing
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Correct answer: Situation of rest
English Kerala PSC (Pre) 2019 IAS (Pre) 2012
Q2258. Consider the following statement. If there were no phenomenon of capillarity. 1. It would be difficult to use a kerosene lamp then. 2. One would not be able to use a straw to consume a soft drink. 3. The blotting paper would fail to function. 4. The big trees that we see around would not have grown on the Earth. Which of the following statements given above are correct?
A Only 1, 2 and 3
B Only 1, 3 and 4
C Only 2 and 4
D Only 1, 2, 3 and 4
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Correct answer: Only 1, 3 and 4
English Jammu & Kashmir PSC (Pre) 2015 UP UDA/LDA (Spl)(Pre) 2010
Q2259. Mobiles and Automobiles have brought about a revolution in the social life of Indians, especially in the rural, in terms of 1. Mobility of the people 2. Connectivity of the people 3. Sensitivity of the people Select the correct answer from the code given below.
A Only 1 and 2
B Only 1 and 3
C Only 2 and 3
D 1, 2 and 3
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Correct answer: Only 1 and 2
English Gujarat PSC (Pre) 2019 IAS (Pre) 1994
Q2260. Consider the figure of a fountain with four holes, given below. Which one of the holes in the fountain will throw the water farthest?
A 4
B 3
C 2
D 1
Show answer
Correct answer: 2