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FPSC MCQs

Federal Public Service Commission — Complete MCQ Bank

269 Questions
Exam Preparation Guide

How to prepare for FPSC

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

General KnowledgeCurrent AffairsEnglishJob-related Subjects
Read the official syllabus first, then combine subject-specific revision with timed mixed-question practice.
FPSC preparation illustration
261

Which process explains why sweating helps cool the human body?

  • AConduction
  • BConvection
  • CEvaporation
  • DRadiation
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Correct Answer: Option C — Evaporation
Explanation: Sweating cools the body through evaporation as sweat absorbs heat from the skin and turns into vapor effectively removing thermal energy and lowering body temperature.
Submitted by: PaperMCQs
262

Which household appliance operates on the principle of electromagnetic induction to heat food?

  • AMicrowave oven
  • BInduction stove
  • CElectric kettle
  • DToaster
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Correct Answer: Option B — Induction stove
Explanation: Induction stoves use electromagnetic induction to generate heat directly within ferromagnetic cookware making them more energy efficient than traditional electric or gas stoves.
Submitted by: PaperMCQs
263

Which property of light explains why a straw appears bent when placed in a glass of water?

  • AReflection
  • BRefraction
  • CDiffraction
  • DDispersion
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Correct Answer: Option B — Refraction
Explanation: Refraction is the bending of light as it passes from one medium to another with different optical densities causing the straw to appear bent at the water's surface.
Submitted by: PaperMCQs
264

Which type of mirror is commonly used in vehicle side mirrors to provide a wider field of view?

  • AConcave mirror
  • BConvex mirror
  • CPlane mirror
  • DParabolic mirror
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Correct Answer: Option B — Convex mirror
Explanation: Convex mirrors are used in vehicle side mirrors because they diverge light rays producing a smaller but wider field of view helping drivers see more of their surroundings.
Submitted by: PaperMCQs
265

Which simple machine is used in a pair of scissors?

  • ALever
  • BPulley
  • CWheel and axle
  • DInclined plane
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Correct Answer: Option A — Lever
Explanation: Scissors function as a compound lever where two blades pivot around a fixed point allowing mechanical advantage to cut through materials with reduced applied force.
Submitted by: PaperMCQs
266

Which gas do plants primarily absorb during photosynthesis?

  • AOxygen
  • BCarbon dioxide
  • CNitrogen
  • DHydrogen
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Correct Answer: Option B — Carbon dioxide
Explanation: Plants absorb carbon dioxide from the atmosphere during photosynthesis using sunlight and water to convert it into glucose and oxygen which is released as a byproduct.
Submitted by: PaperMCQs
267

Which organ in the human body is primarily responsible for filtering blood and removing waste?

  • ALiver
  • BKidney
  • CSpleen
  • DPancreas
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Correct Answer: Option B — Kidney
Explanation: The kidneys filter blood to remove metabolic waste products and excess fluids excreting them as urine while also regulating electrolyte balance and blood pressure in the body.
Submitted by: PaperMCQs
268

Which vitamin is primarily synthesized in human skin upon sunlight exposure?

  • AVitamin A
  • BVitamin C
  • CVitamin D
  • DVitamin K
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Correct Answer: Option C — Vitamin D
Explanation: Vitamin D is synthesized in the skin when exposed to ultraviolet B rays from sunlight and is essential for calcium absorption and maintaining healthy bones and immune function.
Submitted by: PaperMCQs
269

Which part of the human eye controls the amount of light entering it?

  • ARetina
  • BCornea
  • CIris
  • DLens
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Correct Answer: Option C — Iris
Explanation: The iris is the colored muscular structure that controls pupil size thereby regulating the amount of light entering the eye to ensure clear vision under varying light conditions.
Submitted by: PaperMCQs