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Railways | RRB Technician

General Science for RRB Technician

RRB Technician sets 75 General Science questions for 75 marks across 2 stages, so it is worth planning your preparation around the topics below.

75 questions75 marks9 topics

How to approach General Science in RRB Technician

Physics, chemistry and biology at roughly the secondary-school level, tested as direct factual recall. NCERT-level fundamentals cover most of it, and the questions repeat across cycles, so past-paper topics are the sharpest guide to what to revise.

Weightage in the paper

How much General Science is worth in each RRB Technician stage, from the official pattern.

StageQuestionsMarksTimeShare
Computer Based Test for Technician Grade I Signal3535—35%
Computer Based Test for Technician Grade III4040—40%

General Science syllabus for RRB Technician

Every topic in the official syllabus. The linked ones open a set of solved questions you can practise straight away.

  • Physics at class 10 level: motion, force, work, energy, light, sound, electricity and magnetism
  • Chemistry at class 10 level: matter, atomic structure, acids, bases and salts, metals and non-metals
  • Life Sciences at class 10 level: cell structure, human body systems, nutrition and environment
  • For Grade I Signal: engineering drawing and projections
  • For Grade I Signal: units, measurements, mass, weight and density
  • For Grade I Signal: work, power, energy, speed and velocity
  • For Grade I Signal: heat and temperature, basic electricity, levers and simple machines
  • For Grade I Signal: electronics fundamentals, semiconductors and digital circuits
  • Occupational safety, health and environment education

Sample General Science questions with solutions

Written to the RRB Technician pattern, with the answer key and the method behind it — a look at how the section is actually set before you drill the full topic sets.

Biology · solved example

Which gas is released by green plants during photosynthesis?

  • Carbon dioxide
  • Nitrogen
  • OxygenCorrect
  • Hydrogen

Solution

Plants take in carbon dioxide and release oxygen as a by-product of photosynthesis.

Biology · solved example

How many bones are there in the adult human body?

  • 206Correct
  • 300
  • 256
  • 196

Solution

An adult human skeleton has 206 bones; a newborn has around 300 that later fuse.

Physics · solved example

The speed of light in vacuum is approximately:

  • 3 x 10^10 m/s
  • 3 x 10^8 m/sCorrect
  • 3 x 10^8 km/s
  • 3 x 10^6 m/s

Solution

Light travels at about 3 x 10^8 metres per second in vacuum, that is roughly 3 lakh kilometres per second.

Chemistry · solved example

The most abundant gas in the Earth’s atmosphere is:

  • nitrogenCorrect
  • argon
  • oxygen
  • carbon dioxide

Solution

Nitrogen makes up about 78% of the atmosphere by volume, oxygen about 21%, and the rest is argon, carbon dioxide and trace gases.

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Sit General Science under a real clock

General Science shows up in every RRB Technician mock test, in the same interface, with sectional locking and negative marking.

  • RRB Technician: 30-question practice mock

    30 questions | 30 min

    Start

  • RRB Technician: full-length mock (100 questions)

    100 questions | 1 hr 30 min

    Start

Frequently asked questions

How many General Science questions are asked in RRB Technician?

RRB Technician Latest notified cycle sets 75 General Science questions for 75 marks, split across 35 in the Computer Based Test for Technician Grade I Signal and 40 in the Computer Based Test for Technician Grade III.

Is there negative marking for General Science in RRB Technician?

Yes. RRB Technician deducts one third of a mark for each wrong answer, General Science included, so unsure guesses cost you. One third of a mark is deducted for each wrong answer.

Which General Science topics matter most for RRB Technician?

The RRB Technician syllabus lists Physics at class 10 level: motion, force, work, energy, light, sound, electricity and magnetism, Chemistry at class 10 level: matter, atomic structure, acids, bases and salts, metals and non-metals, Life Sciences at class 10 level: cell structure, human body systems, nutrition and environment, For Grade I Signal: engineering drawing and projections, For Grade I Signal: units, measurements, mass, weight and density, For Grade I Signal: work, power, energy, speed and velocity and more. Weight your revision towards the ones you are weakest on and confirm the emphasis against the paper analysis for recent cycles.

How can I practise General Science for RRB Technician free?

Every General Science question on this site is free and written to the exam pattern. Use the topic drills for instant-feedback practice, the daily quiz to keep the section warm, and the RRB Technician mock tests to sit it under a real clock with negative marking.