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NTS MCQs

National Testing Service — Complete MCQ Bank

262 Questions
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NTS tests evaluate aptitude, analytical reasoning, quantitative ability, English and subject knowledge for admissions, scholarships and recruitment.

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221
Everyday Science Easy

Which gas makes up approximately 21 percent of Earth's atmosphere and is essential for respiration?

  • ANitrogen
  • BOxygen
  • CCarbon dioxide
  • DArgon
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Correct Answer: Option B — Oxygen
Explanation: Oxygen makes up approximately 21 percent of Earth's atmosphere and is essential for aerobic respiration in humans and animals allowing cells to generate energy from food.
Submitted by: PaperMCQs
222
Everyday Science Medium

Which instrument is used to detect and measure the magnitude of earthquakes?

  • ABarometer
  • BSeismograph
  • CAnemometer
  • DHygrometer
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Correct Answer: Option B — Seismograph
Explanation: A seismograph detects and records ground vibrations allowing scientists to measure the magnitude and epicenter of earthquakes for disaster monitoring and early warning systems.
Submitted by: PaperMCQs
223
Everyday Science Medium

Which instrument is used to measure wind speed?

  • ABarometer
  • BHygrometer
  • CAnemometer
  • DSeismograph
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Correct Answer: Option C — Anemometer
Explanation: An anemometer measures wind speed and is commonly used at weather stations and airports to monitor atmospheric conditions important for aviation and meteorological forecasting.
Submitted by: PaperMCQs
224
Everyday Science Medium

Which instrument is used to measure humidity levels in the atmosphere?

  • ABarometer
  • BHygrometer
  • CAnemometer
  • DThermometer
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Correct Answer: Option B — Hygrometer
Explanation: A hygrometer is the instrument used to measure humidity levels in the atmosphere providing important data for weather forecasting agriculture and indoor climate control.
Submitted by: PaperMCQs
225
Everyday Science Medium

Which device measures atmospheric pressure and is commonly used for weather forecasting?

  • AThermometer
  • BBarometer
  • CHygrometer
  • DAnemometer
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Correct Answer: Option B — Barometer
Explanation: A barometer measures atmospheric pressure and is widely used in weather forecasting since pressure changes often indicate approaching weather systems such as storms or clear skies.
Submitted by: PaperMCQs
226
Everyday Science Medium

Which type of wave does light represent in terms of its propagation?

  • ALongitudinal wave
  • BTransverse wave
  • CMechanical wave
  • DStanding wave
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Correct Answer: Option B — Transverse wave
Explanation: Light is a transverse electromagnetic wave in which oscillations occur perpendicular to the direction of wave travel distinguishing it from longitudinal sound waves.
Submitted by: PaperMCQs
227
Everyday Science Medium

Which everyday process best illustrates the conversion of chemical energy into mechanical energy?

  • ABurning fuel in a car engine
  • BBoiling water
  • CSolar panel charging a phone
  • DPhotosynthesis
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Correct Answer: Option A — Burning fuel in a car engine
Explanation: Burning fuel in a car engine illustrates the conversion of chemical energy stored in fuel into mechanical energy that powers the vehicle's movement through controlled combustion.
Submitted by: PaperMCQs
228
Everyday Science Easy

Which common kitchen substance is used as a natural antacid due to its alkaline properties?

  • AVinegar
  • BBaking soda
  • CLemon juice
  • DSalt
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Correct Answer: Option B — Baking soda
Explanation: Baking soda sodium bicarbonate is commonly used as a natural antacid because its alkaline properties help neutralize excess stomach acid relieving symptoms of indigestion and heartburn.
Submitted by: PaperMCQs
229
Everyday Science Medium

Which type of lens is used to correct hyperopia or farsightedness?

  • AConcave lens
  • BConvex lens
  • CBifocal lens
  • DCylindrical lens
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Correct Answer: Option B — Convex lens
Explanation: Convex lenses are used to correct hyperopia or farsightedness because they converge light rays helping the eye focus images properly onto the retina for clearer near vision.
Submitted by: PaperMCQs
230
Everyday Science Medium

Which type of lens is used to correct myopia or nearsightedness?

  • AConvex lens
  • BConcave lens
  • CBifocal lens
  • DCylindrical lens
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Correct Answer: Option B — Concave lens
Explanation: Concave lenses are used to correct myopia or nearsightedness because they diverge light rays before they enter the eye allowing the image to focus properly on the retina.
Submitted by: PaperMCQs
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