Join WhatsApp ChannelDaily MCQs & Exam Updates

CSS MCQs

Civil Superior Services — Complete MCQ Bank

1,970 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.

Pakistan AffairsCurrent AffairsEnglishEveryday Science
Combine daily MCQ practice with analytical reading, vocabulary building and regular revision of national and international affairs.
CSS preparation illustration
491
Physics Hard Uploaded: 17 Aug 2026

Which of the following has the highest penetrating power?

  • ASound waves
  • BAlpha particles
  • CBeta particles
  • DGamma rays
492
Physics Medium Uploaded: 17 Aug 2026

Nuclear reactors typically use which element as fuel?

  • ACarbon
  • BHydrogen
  • CUranium
  • DOxygen
493
Physics Easy Uploaded: 17 Aug 2026

Which scientist is credited with developing the special theory of relativity?

  • AIsaac Newton
  • BAlbert Einstein
  • CNiels Bohr
  • DMax Planck
494
Physics Easy Uploaded: 17 Aug 2026

The de Broglie hypothesis proposed that particles such as electrons exhibit:

  • ANo measurable properties
  • BOnly wave nature
  • CBoth wave and particle nature
  • DOnly particle nature
495
Physics Medium Uploaded: 17 Aug 2026

Quantum mechanics primarily deals with the behavior of:

  • AMacroscopic objects
  • BLarge celestial bodies
  • CSubatomic particles
  • DFluids in motion
496
Physics Medium Uploaded: 17 Aug 2026

The electron was discovered by:

  • ANiels Bohr
  • BJ.J. Thomson
  • CJames Chadwick
  • DErnest Rutherford
497
Physics Hard Uploaded: 17 Aug 2026

X-rays were discovered by:

  • AErnest Rutherford
  • BMarie Curie
  • CWilhelm Rontgen
  • DNiels Bohr
498
Physics Medium Uploaded: 17 Aug 2026

According to Einstein's mass-energy equivalence, E equals:

  • Amc
  • Bmc^2
  • Cmc^3
  • Dm/c
499
Physics Easy Uploaded: 17 Aug 2026

The photoelectric effect demonstrates that light behaves as a:

  • AParticle only
  • BNeither wave nor particle
  • CWave only
  • DBoth wave and particle
500
Physics Easy Uploaded: 17 Aug 2026

The photoelectric effect was explained by:

  • ANewton
  • BFaraday
  • CEinstein
  • DMaxwell