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General Science MCQ practice free online · page 122

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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1211Sikkim PSC2015General ScienceEnglish
Which of the following professional(s) are more likely to run the risk of a permanent change in their cell’s DNA? 1. Researchers using carbon 14 isotope 2. X-ray technician 3. Coal miner 4. Dyer and painter Select the correct answer by using the codes given below.
Show answerAnswer & explanation
Correct option: A — Only 2
1212UPPSC2009General ScienceEnglish
Which of the following is a source of biofertilizer?
Show answerAnswer & explanation
Correct option: C — Azolla
1213UKPSC2002General ScienceEnglish
Which of the following is a biofertilizer?
Show answerAnswer & explanation
Correct option: D — Azolla
1214TNPSC2016General ScienceEnglish
The biofertilizer used as a supplemenatry food for the cattle, especially for milking bovinces is
Show answerAnswer & explanation
Correct option: B — Azolla
1215UPPSC2003General ScienceEnglish
Which of these is not correctly matched?
Show answerAnswer & explanation
Correct option: D — Azotobacter - Bioinsecticide
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1216UPPSC2006General ScienceEnglish
Which bacteria is responsible for nitrogen fixation in soyabean?
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Correct option: B — Rhizobium japonicum
1217UPPSC1999General ScienceEnglish
2, 4-D is
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Correct option: D — A herbicide
1218UPPSC2006General ScienceEnglish
Blue-green algae are chiefly used as biofertilizer in the crop of
Show answerAnswer & explanation
Correct option: C — Paddy
1219UPPSC2010General ScienceEnglish
Blue-green algae is used to supply nitrogen to
Show answerAnswer & explanation
Correct option: C — Paddy
1220UPPSC2017General ScienceEnglish
Which one of the following is not correctly matched? Nitrogen fixing Crop agent
Show answerAnswer & explanation
Correct option: D — Azolla - Maize

General Science practice — common questions

Page 122 of this set has 10 questions on it.

Are these General Science questions free to practise?

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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".

General Science MCQ practice free online · page 122

Which of the following professional(s) are more likely to run the risk of a permanent change in their cell’s DNA? 1. Researchers using carbon 14 isotope 2. X-ray technician 3. Coal miner 4. Dyer and painter Select the correct answer by using the codes given below.

Which of the following is a source of biofertilizer?

Which of the following is a biofertilizer?

The biofertilizer used as a supplemenatry food for the cattle, especially for milking bovinces is

Which of these is not correctly matched?

Which bacteria is responsible for nitrogen fixation in soyabean?

2, 4-D is

Blue-green algae are chiefly used as biofertilizer in the crop of

Blue-green algae is used to supply nitrogen to

Which one of the following is not correctly matched? Nitrogen fixing Crop agent

General Science practice — common questions