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CSS MCQs

Civil Superior Services — Complete MCQ Bank

1,970 Questions
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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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891
Physics Medium Uploaded: 06 Aug 2026

Which phenomenon causes a rainbow to form after rainfall?

  • AReflection only
  • BDiffraction only
  • CRefraction and dispersion
  • DPolarization
892
Physics Medium Uploaded: 06 Aug 2026

What is the term for the angle at which incident light strikes a reflective surface?

  • AAngle of reflection
  • BAngle of refraction
  • CAngle of incidence
  • DCritical angle
893
Physics Hard Uploaded: 06 Aug 2026

Which scientific instrument is used to measure the intensity of earthquakes?

  • ASeismograph
  • BBarometer
  • CAnemometer
  • DHygrometer
894
Physics Easy Uploaded: 06 Aug 2026

What is the term for the resistance offered by a fluid to an object moving through it?

  • ABuoyancy
  • BDrag
  • CTension
  • DViscosity
895
Physics Easy Uploaded: 06 Aug 2026

Which phenomenon explains why the sky appears blue during the day?

  • AReflection
  • BRefraction
  • CDiffraction
  • DScattering
896
Physics Easy Uploaded: 06 Aug 2026

What is the term for a material that allows electric current to pass through easily?

  • AInsulator
  • BConductor
  • CSemiconductor
  • DSuperconductor
897
Physics Easy Uploaded: 06 Aug 2026

Which law relates the pressure and volume of a gas at constant temperature?

  • ACharles's Law
  • BBoyle's Law
  • CGay-Lussac's Law
  • DAvogadro's Law
898
Physics Hard Uploaded: 06 Aug 2026

What is the term for the force that opposes relative motion between surfaces in contact?

  • AGravity
  • BTension
  • CFriction
  • DNormal force
899
Physics Medium Uploaded: 06 Aug 2026

Which law explains why objects float or sink in a fluid?

  • ANewton's Law
  • BArchimedes' Principle
  • CPascal's Law
  • DBoyle's Law
900
Physics Easy Uploaded: 06 Aug 2026

What is the term for the resistance of an object to change in its state of motion?

  • AMomentum
  • BVelocity
  • CInertia
  • DAcceleration