Join WhatsApp ChannelDaily MCQs & Exam Updates

PPSC MCQs

Punjab Public Service Commission β€” Complete MCQ Bank

1,259 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
771

Which gas is primarily responsible for causing the bends in deep sea divers who ascend too quickly?

  • AOxygen
  • BNitrogen
  • CCarbon dioxide
  • DHelium
Permalink
Correct Answer: Option B β€” Nitrogen
Explanation: Nitrogen dissolved in the bloodstream under high pressure can form bubbles if a diver ascends too quickly causing decompression sickness commonly known as the bends.
Submitted by: PaperMCQs
772

Which common kitchen ingredient is used as a natural indicator to test acidity or basicity in simple science experiments?

  • ARed cabbage extract
  • BTable salt
  • CSugar
  • DCooking oil
Permalink
Correct Answer: Option A β€” Red cabbage extract
Explanation: Red cabbage extract contains a natural pigment called anthocyanin that changes color depending on pH making it a popular natural indicator for testing acidity or basicity at home.
Submitted by: PaperMCQs
773

Which common everyday substance is classified as a strong acid frequently used in car batteries?

  • AAcetic acid
  • BSulfuric acid
  • CCitric acid
  • DCarbonic acid
Permalink
Correct Answer: Option B β€” Sulfuric acid
Explanation: Sulfuric acid is a strong acid commonly used as the electrolyte in lead acid car batteries enabling the chemical reactions necessary for storing and releasing electrical energy.
Submitted by: PaperMCQs
774

Which type of fat is generally considered healthier and is commonly found in foods like olive oil and nuts?

  • ASaturated fat
  • BTrans fat
  • CUnsaturated fat
  • DHydrogenated fat
Permalink
Correct Answer: Option C β€” Unsaturated fat
Explanation: Unsaturated fats commonly found in olive oil nuts and avocados are generally considered healthier than saturated or trans fats as they support heart health when consumed in moderation.
Submitted by: PaperMCQs
775

Which macronutrient is essential for building and repairing body tissues such as muscles?

  • ACarbohydrates
  • BFats
  • CProteins
  • DFiber
Permalink
Correct Answer: Option C β€” Proteins
Explanation: Proteins are essential macronutrients required for building and repairing body tissues including muscles skin and organs as they provide the amino acids needed for cellular growth.
Submitted by: PaperMCQs
776

Which macronutrient is the body's primary and most efficient source of quick energy?

  • AProteins
  • BFats
  • CCarbohydrates
  • DVitamins
Permalink
Correct Answer: Option C β€” Carbohydrates
Explanation: Carbohydrates serve as the body's primary and most efficient source of quick energy as they are readily broken down into glucose which cells use for immediate fuel.
Submitted by: PaperMCQs
777

Which common food item is a good source of dietary fiber important for digestive health?

  • AWhite bread
  • BWhole grains
  • CRefined sugar
  • DProcessed cheese
Permalink
Correct Answer: Option B β€” Whole grains
Explanation: Whole grains are an excellent source of dietary fiber which supports healthy digestion regulates blood sugar levels and helps maintain overall gastrointestinal health.
Submitted by: PaperMCQs
778

Which everyday observation demonstrates the concept of inertia in physics?

  • AA ball rolling downhill
  • BA seated passenger jerking forward during sudden braking
  • CWater boiling at high altitude
  • DA magnet attracting iron filings
Permalink
Correct Answer: Option B β€” A seated passenger jerking forward during sudden braking
Explanation: A seated passenger jerking forward during sudden braking demonstrates inertia as the body continues moving forward due to its tendency to resist changes in its state of motion.
Submitted by: PaperMCQs
779

Which natural process explains how mountains gradually wear down over long periods of time?

  • AErosion
  • BDeposition
  • CSedimentation
  • DWeathering and erosion
Permalink
Correct Answer: Option D β€” Weathering and erosion
Explanation: Weathering and erosion together explain how mountains gradually wear down over long periods through physical chemical and biological processes that break down and transport rock material.
Submitted by: PaperMCQs
780

Which renewable energy source generates electricity by harnessing the flow of water through dams or rivers?

  • ASolar energy
  • BWind energy
  • CHydropower
  • DGeothermal energy
Permalink
Correct Answer: Option C β€” Hydropower
Explanation: Hydropower generates electricity by harnessing the kinetic energy of flowing water typically through dams or river turbines making it one of the oldest renewable energy sources used worldwide.
Submitted by: PaperMCQs