381RPSC1997General ScienceEnglish
Which one of the following is used for determining the structure of crystal?
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Correct option: B — X-rays
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General Science MCQ practice free online · page 39
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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- 382UKPSC2016General ScienceEnglish
Which of the following is a mechanical wave?
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Correct option: D — Sound waves
- 383UKPSC2002General ScienceEnglish
A radar which detects the presence of an enemy aircraft uses
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Correct option: B — Radio waves
- 384UPSC1993General ScienceEnglish
When there is depletion of ozone in the stratosphere, the wavelength of radiation striking the Earth’s surface will be
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Correct option: B — 10⁻⁷ m
- 385UPSC2009General ScienceEnglish
Which one of the following types of waves are used in a Night Vision apparatus?
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Correct option: C — Infra-red waves
- 386UPPSC2013General ScienceEnglish
Waves used for telecommunication are
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Correct option: D — Microwave
- 387RPSC2013General ScienceEnglish
FM broadcasting service uses the range of frequency bands between
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Correct option: D — 88-108 MHz
- 388BPSC1999General ScienceEnglish
Following rays are used in the diagnosis of intestinal diseases
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Correct option: A — X-rays
- 389UPPSC2011General ScienceEnglish
CT scan is done by using
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Correct option: D — X-Rays
- 390CGPSC2004General ScienceEnglish
In which medium the speed of sound is maximum at a temperature of around 20ºC?
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Correct option: D — Iron
General Science practice — common questions
Page 39 of this set has 10 questions on it.
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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".