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PPSC MCQs

Punjab Public Service Commission — Complete MCQ Bank

342 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
161
Everyday Science Easy Uploaded: 25 Jun 2026

Which gas produced during fermentation causes dough to rise when making bread?

  • AOxygen
  • BCarbon dioxide
  • CNitrogen
  • DHydrogen
162
Everyday Science Medium Uploaded: 25 Jun 2026

Which everyday material is commonly used as a natural disinfectant due to its antimicrobial properties?

  • ASugar
  • BHoney
  • CSalt water alone
  • DCooking oil
163
Everyday Science Medium Uploaded: 25 Jun 2026

Which everyday process explains why water boils at a lower temperature at high altitudes such as on mountains?

  • ALower atmospheric pressure
  • BHigher atmospheric pressure
  • CIncreased oxygen levels
  • DReduced gravity
164
Everyday Science Medium Uploaded: 25 Jun 2026

Which everyday process explains why food cooks faster in a pressure cooker compared to an open pot?

  • ALower boiling point at high pressure
  • BHigher boiling point at high pressure
  • CReduced heat transfer
  • DIncreased oxygen levels
165
Everyday Science Medium Uploaded: 25 Jun 2026

Which optical phenomenon creates the illusion of water on a hot road surface during sunny days?

  • ARainbow
  • BMirage
  • CAurora
  • DHalo
166
Everyday Science Hard Uploaded: 25 Jun 2026

Which natural phenomenon produces colorful displays of light in polar regions due to solar particles interacting with the atmosphere?

  • ARainbow
  • BAurora
  • CHalo
  • DMirage
167
Everyday Science Medium Uploaded: 25 Jun 2026

Which natural phenomenon explains why a compass needle always points toward magnetic north?

  • AEarth's magnetic field
  • BEarth's gravitational field
  • CEarth's rotation
  • DSolar wind
168
Everyday Science Medium Uploaded: 25 Jun 2026

Which everyday device converts alternating current into direct current for charging electronic devices?

  • AInverter
  • BRectifier
  • CTransformer
  • DGenerator
169
Everyday Science Medium Uploaded: 25 Jun 2026

Which everyday device converts direct current into alternating current for household appliance use?

  • ATransformer
  • BInverter
  • CGenerator
  • DRectifier
170
Everyday Science Medium Uploaded: 25 Jun 2026

Which everyday device changes the voltage level of alternating current for transmission or use?

  • AGenerator
  • BTransformer
  • CBattery
  • DInverter