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CSS MCQs

Civil Superior Services — Complete MCQ Bank

127 Questions
Exam Preparation Guide

How to prepare for CSS

CSS is Pakistan’s premier federal competitive examination. Strong preparation requires conceptual clarity, broad general knowledge and consistent practice across compulsory and optional areas.

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Combine daily MCQ practice with analytical reading, vocabulary building and regular revision of national and international affairs.
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Physics Medium Uploaded: 06 Aug 2026

What phenomenon explains why the sky appears blue?

  • ATotal internal reflection
  • BReflection
  • CRefraction
  • DRayleigh scattering
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Physics Medium Uploaded: 06 Aug 2026

What is the working principle of a transformer based on?

  • AElectrostatic induction
  • BMechanical induction
  • CThermal conduction
  • DElectromagnetic induction
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Physics Easy Uploaded: 06 Aug 2026

Which force keeps planets in orbit around the sun?

  • AMagnetic force
  • BElectrostatic force
  • CGravitational force
  • DNuclear force
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Physics Medium Uploaded: 06 Aug 2026

What causes the phenomenon of a rainbow?

  • ARefraction and dispersion of light
  • BReflection of light
  • CDiffraction of light
  • DPolarization of light
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Physics Easy Uploaded: 06 Aug 2026

What is the SI unit of power?

  • ANewton
  • BPascal
  • CWatt
  • DJoule
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Physics Easy Uploaded: 06 Aug 2026

Which particle has no electric charge?

  • ANeutron
  • BProton
  • CElectron
  • DPositron
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Physics Medium Uploaded: 05 Aug 2026

Which kinetic theory explains that gas pressure results from molecular collisions with container walls?

  • ABoyle's Law
  • BAvogadro's Law
  • CCharles's Law
  • DKinetic molecular theory
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Physics Hard Uploaded: 05 Aug 2026

What is the unit of measurement for radioactive activity equal to one nuclear disintegration per second?

  • AGray
  • BBecquerel
  • CSievert
  • DRem
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Physics Medium Uploaded: 05 Aug 2026

Which scientist discovered electromagnetic induction demonstrating that a changing magnetic field induces current?

  • AMichael Faraday
  • BJames Clerk Maxwell
  • CNikola Tesla
  • DHeinrich Hertz
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Physics Medium Uploaded: 05 Aug 2026

Which principle states that pressure in a static fluid increases with depth depending on fluid density?

  • ABernoulli's Principle
  • BArchimedes' Principle
  • CPascal's Principle
  • DHydrostatic pressure principle