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PPSC MCQs

Punjab Public Service Commission β€” Complete MCQ Bank

273 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
21

Which type of teeth erupt last in humans typically between ages 17 and 25 and are commonly called wisdom teeth?

  • APremolars
  • BCanines
  • CMolars
  • DThird molars
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Correct Answer: Option D β€” Third molars
Explanation: Third molars commonly known as wisdom teeth are the last teeth to erupt typically between ages 17 and 25 and are often removed if they grow in misaligned.
Submitted by: PaperMCQs
22

Which organ in the human body stores and concentrates urine before it is excreted?

  • AKidney
  • BUrethra
  • CUreter
  • DBladder
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Correct Answer: Option D β€” Bladder
Explanation: The urinary bladder stores urine produced by the kidneys until it is expelled from the body through the urethra during urination.
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23

Which everyday observation shows that pressure in a gas increases as temperature increases at constant volume?

  • AIce melting in the sun
  • BWood burning in fire
  • CTyre pressure increasing on a hot day
  • DWater boiling faster with a lid
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Correct Answer: Option C β€” Tyre pressure increasing on a hot day
Explanation: Tyre pressure increases on a hot day because as temperature rises the gas molecules inside move faster increasing the number and force of collisions with the tyre walls.
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24

Which common everyday substance is used to test for the presence of glucose in food and turns brick-red when heated?

  • AIodine solution
  • BBenedict's solution
  • CLitmus paper
  • DUniversal indicator
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Correct Answer: Option B β€” Benedict's solution
Explanation: Benedict's solution is used to test for reducing sugars including glucose and turns from blue to brick-red when heated in the presence of glucose.
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25

Which common everyday substance is used to test for the presence of starch in food by turning blue-black?

  • AIodine solution
  • BLitmus paper
  • CBenedict's solution
  • DBiuret reagent
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Correct Answer: Option A β€” Iodine solution
Explanation: Iodine solution turns blue-black in the presence of starch making it a simple and reliable test for detecting starch in food items during food science investigations.
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26

Which cold-blooded vertebrate group lives entirely in water breathing through gills throughout its life?

  • AFish
  • BAmphibians
  • CReptiles
  • DMammals
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Correct Answer: Option A β€” Fish
Explanation: Fish are cold-blooded aquatic vertebrates that breathe through gills throughout their entire lives extracting dissolved oxygen from water as they swim.
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27

Which warm-blooded animal group nourishes its young with milk and typically gives birth to live young?

  • ABirds
  • BReptiles
  • CAmphibians
  • DMammals
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Correct Answer: Option D β€” Mammals
Explanation: Mammals are warm-blooded vertebrates that nourish their young with milk secreted from mammary glands most give birth to live young and have body hair or fur.
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28

Which cold-blooded animal group is covered in scales breathes air through lungs and lays eggs on land?

  • AAmphibians
  • BReptiles
  • CFish
  • DArthropods
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Correct Answer: Option B β€” Reptiles
Explanation: Reptiles are cold-blooded animals covered in scales that breathe through lungs and typically lay leathery eggs on land including snakes lizards turtles and crocodiles.
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29

Which type of animal can live both on land and in water, such as frogs and toads?

  • AReptiles
  • BMammals
  • CAmphibians
  • DFish
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Correct Answer: Option C β€” Amphibians
Explanation: Amphibians are cold-blooded animals adapted to live both on land and in water breathing through gills as larvae and developing lungs as adults examples include frogs toads and salamanders.
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30

Which animal group lacks a backbone and includes insects worms and molluscs?

  • AVertebrates
  • BAmphibians
  • CReptiles
  • DInvertebrates
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Correct Answer: Option D β€” Invertebrates
Explanation: Invertebrates are animals that lack a backbone representing approximately 97 percent of all animal species including insects worms spiders and molluscs.
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