161PPSC2017General ScienceEnglish
Fish can survive in a frozen lake because
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Correct option: C — Water near the bottom does not freeze
Free · past papers · answers included
General Science MCQ practice free online · page 17
Questions from RRB, NTPC, Group D and JE past papers. Tap an option to check it instantly — every question shows the correct answer, and most carry the explanation the paper gave.
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- 162KPSC2018General ScienceEnglish
Increasing the amount of a substance does not change its
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Correct option: D — Density
- 163UPPSC2017General ScienceEnglish
If an unsaturated sugar solution is prepared by mixing 100 grams of sugar with half litre of water, which of the following physical quantities will not change?
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Correct option: D — Volume
- 164RPSC1992General ScienceEnglish
The density of water will reach its maximum value at the temperature of
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Correct option: B — 4ºC
- 165UPPSC2008General ScienceEnglish
At which temperature density of water is maximum?
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Correct option: A — 4ºC
- 166UPPSC2015General ScienceEnglish
The maximum density of water is at
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Correct option: B — 277 Kelvin
- 167UPPSC1994General ScienceEnglish
Why does an iron nail float on mercury while it sinks in water?
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Correct option: C — Iron has greater density than water and lesser than mercury
- 168UPPSC2004General ScienceEnglish
A needle sinks in water whereas a ship made of iron floats on it because
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Correct option: D — Specific gravity of the needle is greater than that of water displaced by it
- 169UPPSC2012General ScienceEnglish
An iron needle floats on the surface of water due to
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Correct option: B — Surface tension
- 170UPPSC2009General ScienceEnglish
While lifting a bucket of water from a well, we feel that the bucket
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Correct option: A — Becomes heavier above the surface of water
General Science practice — common questions
Page 17 of this set has 10 questions on it.
Are these General Science questions free to practise?
Yes. Every question on this page is free and needs no account. Create a free account only if you want your progress saved.
Where do these General Science MCQs come from?
They are taken from official past papers of Indian government recruitment exams such as RRB NTPC, RRB Group D and RRB JE, and each question keeps a reference to the exam it appeared in.
Are the questions available in Hindi?
Yes. Many papers are set in both languages, so a large share of these questions are available in Hindi. Use the language filter at the top of the page.
Do the questions show answers and explanations?
Every question shows the correct option. Where the source paper included a worked solution, the explanation is shown under "Show answer".