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CSS MCQs

Civil Superior Services — Complete MCQ Bank

1,939 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
481
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
482
Physics Medium Uploaded: 17 Aug 2026

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

  • ATemperature
  • BPressure
  • CDensity
  • DMass
483
Physics Easy Uploaded: 17 Aug 2026

A calorimeter is used to measure:

  • ATemperature
  • BPressure
  • CVolume
  • DHeat energy
484
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
485
Physics Medium Uploaded: 17 Aug 2026

The SI unit of viscosity is:

  • AJoule
  • BWatt
  • CNewton
  • DPascal second
486
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
487
Physics Hard Uploaded: 17 Aug 2026

The value of acceleration due to gravity decreases as one moves:

  • AToward the equator
  • BToward the Earth's center from the surface
  • CAt sea level only
  • DAway from Earth's surface into space
488
Physics Medium Uploaded: 17 Aug 2026

Weight of a body is the force of gravity acting on its:

  • AVolume
  • BArea
  • CDensity
  • DMass
489
Physics Easy Uploaded: 17 Aug 2026

The escape velocity from Earth's surface is approximately:

  • A7.9 km/s
  • B3.6 km/s
  • C5.5 km/s
  • D11.2 km/s
490
Physics Medium Uploaded: 17 Aug 2026

The impulse of a force equals the change in:

  • AMomentum
  • BDisplacement
  • CKinetic energy
  • DPotential energy