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PPSC MCQs

Punjab Public Service Commission — Complete MCQ Bank

159 Questions
Exam Preparation Guide

How to prepare for PPSC

PPSC examinations recruit candidates for Punjab government departments and commonly test general knowledge, current affairs, English and post-related subjects.

Punjab AffairsGeneral KnowledgeCurrent AffairsEnglish
Give special attention to Punjab geography, history and administration alongside the advertised post’s specialist syllabus.
PPSC preparation illustration
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Physics Easy Uploaded: 17 Aug 2026

The primary colors of light are:

  • ARed, orange, yellow
  • BRed, green, blue
  • CCyan, magenta, yellow
  • DRed, yellow, blue
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Physics Easy Uploaded: 17 Aug 2026

The working principle of an optical fiber is based on:

  • APolarization
  • BRefraction
  • CDiffraction
  • DTotal internal reflection
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Physics Medium Uploaded: 17 Aug 2026

The speed of sound in air at room temperature is approximately:

  • A343 m/s
  • B5000 m/s
  • C3 x 10^8 m/s
  • D1500 m/s
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Physics Medium Uploaded: 17 Aug 2026

Which characteristic of sound is related to its frequency?

  • APitch
  • BIntensity
  • CLoudness
  • DQuality
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Physics Hard Uploaded: 17 Aug 2026

Infrasonic waves have frequencies:

  • AAbove 20,000 Hz
  • BBetween 20 Hz and 20,000 Hz
  • CBelow 20 Hz
  • DAbove 200,000 Hz
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Physics Easy Uploaded: 17 Aug 2026

The Doppler effect refers to the change in:

  • AAmplitude of a wave due to relative motion
  • BWavelength of light due to temperature
  • CSpeed of light in different media
  • DFrequency of a wave due to relative motion
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Physics Medium Uploaded: 17 Aug 2026

The phenomenon of bending of light around obstacles is called:

  • ARefraction
  • BDiffraction
  • CReflection
  • DDispersion
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Physics Medium Uploaded: 17 Aug 2026

Echo is caused by the:

  • ARefraction of sound
  • BDiffraction of sound
  • CInterference of sound
  • DReflection of sound
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Physics Medium Uploaded: 17 Aug 2026

The relationship between wave speed, frequency, and wavelength is given by:

  • Av = f + lambda
  • Bv = f/lambda
  • Cv = f x lambda
  • Dv = lambda/f
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Physics Medium Uploaded: 17 Aug 2026

The number of complete waves passing a point per second is called:

  • AWavelength
  • BFrequency
  • CAmplitude
  • DWave speed