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FPSC MCQs

Federal Public Service Commission — Complete MCQ Bank

1,458 Questions
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FPSC recruitment tests assess subject knowledge, general ability and job-related competence for federal government positions across Pakistan.

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Read the official syllabus first, then combine subject-specific revision with timed mixed-question practice.
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All Subjects Biology Chemistry Computer Science Current Affairs English Everyday Science General Knowledge Islamic Studies Mathematics Pakistan Studies Physics
701
Everyday Science Medium

Which everyday chemical process explains why sliced apples turn brown after being exposed to air?

  • AReduction reaction
  • BOxidation reaction
  • CNeutralization reaction
  • DSublimation
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Correct Answer: Option B — Oxidation reaction
Explanation: Sliced apples turn brown due to an oxidation reaction where enzymes react with oxygen in the air converting certain compounds into brown colored substances on the cut surface.
Submitted by: PaperMCQs
702
Everyday Science Medium

Which everyday device uses a small magnifying lens system to examine tiny objects not visible to the naked eye?

  • ATelescope
  • BMicroscope
  • CPeriscope
  • DBinoculars
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Correct Answer: Option B — Microscope
Explanation: A microscope uses a system of lenses to magnify tiny objects such as cells and microorganisms allowing detailed observation that is impossible with the naked eye alone.
Submitted by: PaperMCQs
703
Computer Science Medium

Who is widely regarded as the father of Computer Science?

  • AJohn von Neumann
  • BAlan Turing
  • CCharles Babbage
  • DBill Gates
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Correct Answer: Option B — Alan Turing
Explanation: Alan Turing is widely known as the father of Computer Science because he developed the theoretical foundation of modern computing. In 1936, he introduced the concept of the Turing Machine, which demonstrated how computers can process information and solve problems through algorithms. His work also played a major role in the development of artificial intelligence and computer theory, making him one of the most influential figures in computing history.
Submitted by: Chandi
704
Everyday Science Medium

Which everyday optical device uses a combination of lenses to magnify distant objects?

  • AMicroscope
  • BTelescope
  • CPeriscope
  • DStethoscope
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Correct Answer: Option B — Telescope
Explanation: A telescope uses a combination of lenses or mirrors to collect and magnify light from distant objects making them appear closer and clearer to the observer.
Submitted by: PaperMCQs
705
Everyday Science Easy

Which household practice helps prevent the growth of mold in damp areas like bathrooms?

  • AIncreasing humidity
  • BProper ventilation
  • CClosing all windows
  • DReducing sunlight exposure
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Correct Answer: Option B — Proper ventilation
Explanation: Proper ventilation reduces moisture buildup in damp areas like bathrooms preventing the conditions mold spores need to grow and spread across surfaces.
Submitted by: PaperMCQs
706
Everyday Science Medium

Which property of sound determines how high or low it is perceived by the human ear?

  • AAmplitude
  • BFrequency
  • CWavelength
  • DSpeed
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Correct Answer: Option B — Frequency
Explanation: Frequency determines the pitch of sound with higher frequencies perceived as higher pitched tones and lower frequencies perceived as deeper sounds by the human ear.
Submitted by: PaperMCQs
707
Computer Science Medium

What is the default port number for HTTPS?

  • A21
  • B25
  • C80
  • D443
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Correct Answer: Option D — 443
Explanation: HTTPS (HyperText Transfer Protocol Secure) uses port 443 by default to provide secure communication over the Internet. It encrypts data using SSL/TLS protocols, protecting sensitive information such as passwords, banking details, and personal data from attackers
Submitted by: PaperMCQs
708
Everyday Science Medium

Which type of immunity is passed from mother to infant through breast milk or placental transfer?

  • AActive immunity
  • BPassive immunity
  • CInnate immunity
  • DAcquired immunity through vaccination
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Correct Answer: Option B — Passive immunity
Explanation: Passive immunity is passed from mother to infant through breast milk or placental transfer providing temporary protection against infections during the early stages of an infant's life.
Submitted by: PaperMCQs
709
Everyday Science Medium

Which type of immunity is gained through vaccination by introducing a weakened or inactivated pathogen?

  • ANatural immunity
  • BAcquired active immunity
  • CPassive immunity
  • DInnate immunity
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Correct Answer: Option B — Acquired active immunity
Explanation: Acquired active immunity is gained through vaccination by introducing a weakened or inactivated pathogen which stimulates the immune system to produce specific antibodies for future protection.
Submitted by: PaperMCQs
710
Everyday Science Medium

Which common food item is fortified with iodine in many countries to prevent deficiency related disorders?

  • ATable salt
  • BSugar
  • CCooking oil
  • DFlour
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Correct Answer: Option A — Table salt
Explanation: Table salt is commonly fortified with iodine in many countries as a public health measure to prevent iodine deficiency disorders such as goiter and developmental issues in children.
Submitted by: PaperMCQs
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