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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.
CSS preparation illustration
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Physics Medium Uploaded: 17 Aug 2026

Which lens is used to correct myopia (nearsightedness)?

  • ABifocal lens
  • BConvex lens
  • CConcave lens
  • DCylindrical lens
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Physics Medium Uploaded: 17 Aug 2026

A concave lens is also known as a:

  • ADiverging lens
  • BConverging lens
  • CPlane lens
  • DBifocal lens
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Physics Hard Uploaded: 17 Aug 2026

Waves that require a medium to travel are called:

  • AElectromagnetic waves
  • BRadio waves
  • CLight waves
  • DMechanical waves
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Physics Medium Uploaded: 17 Aug 2026

The unit used to measure the loudness of sound is:

  • ADecibel
  • BHertz
  • CWatt
  • DNewton
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Physics Medium Uploaded: 17 Aug 2026

Sublimation refers to the direct change of state from:

  • AGas to liquid
  • BSolid to gas
  • CSolid to liquid
  • DLiquid to gas
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Physics Medium Uploaded: 17 Aug 2026

Charles's law relates volume of a gas to its:

  • ATemperature
  • BPressure
  • CDensity
  • DMass
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Physics Easy Uploaded: 17 Aug 2026

A calorimeter is used to measure:

  • ATemperature
  • BPressure
  • CVolume
  • DHeat energy
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Physics Easy Uploaded: 17 Aug 2026

The process of converting a liquid into vapor at any temperature below its boiling point is called:

  • AEvaporation
  • BSublimation
  • CBoiling
  • DCondensation
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Physics Medium Uploaded: 17 Aug 2026

The SI unit of viscosity is:

  • AJoule
  • BWatt
  • CNewton
  • DPascal second
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Physics Hard Uploaded: 17 Aug 2026

Archimedes' principle explains the:

  • ARise of liquid in capillary tubes
  • BBuoyant force on submerged objects
  • CFlow rate of fluids
  • DPressure exerted by gases