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Everyday Science MCQs

45 Questions Subject Test
Subject Preparation Guide

Prepare Everyday Science with confidence

Understand the science behind daily life through questions covering health, energy, environment, inventions and natural phenomena.

Human BodyEnergyEnvironmentScientific Inventions
Important for general science portions of CSS, PMS, FPSC and provincial tests.
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41
Hard fpsc ppsc nts

Which chamber of the heart pumps oxygenated blood out to the rest of the body?

  • A Right atrium
  • B Right ventricle
  • C Left atrium
  • D Left ventricle
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Correct Answer: Option D — Left ventricle
Explanation: The left ventricle pumps oxygenated blood received from the lungs out to the rest of the body through the aorta making it the heart's most muscular chamber.
Submitted by: PaperMCQs
42
Hard fpsc ppsc nts

Which chamber of the heart receives deoxygenated blood from the body before sending it to the lungs?

  • A Left atrium
  • B Right atrium
  • C Left ventricle
  • D Right ventricle
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Correct Answer: Option B — Right atrium
Explanation: The right atrium receives deoxygenated blood returning from the body and passes it to the right ventricle which then pumps it to the lungs for oxygenation.
Submitted by: PaperMCQs
43
Hard fpsc ppsc nts

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

  • A Oxygen
  • B Nitrogen
  • C Carbon dioxide
  • D Helium
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Correct Answer: Option B — 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
44
Hard fpsc ppsc nts

Which scale is used to estimate wind speed based on observed sea or land conditions without instruments?

  • A Richter scale
  • B Beaufort scale
  • C Fujita scale
  • D Saffir-Simpson scale
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Correct Answer: Option B — Beaufort scale
Explanation: The Beaufort scale estimates wind speed by observing its effects on sea waves and land conditions providing a practical method for assessing wind force without specialized instruments.
Submitted by: PaperMCQs
45
Hard fpsc ppsc nts

Which scale is commonly used to measure the intensity of hurricanes and tropical cyclones?

  • A Richter scale
  • B Saffir-Simpson scale
  • C Beaufort scale
  • D Fujita scale
Permalink
Correct Answer: Option B — Saffir-Simpson scale
Explanation: The Saffir-Simpson scale categorizes hurricanes into five categories based on sustained wind speed helping predict potential damage and guide disaster preparedness measures.
Submitted by: PaperMCQs
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