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NTS MCQs

National Testing Service — Complete MCQ Bank

262 Questions
Exam Preparation Guide

How to prepare for NTS

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

EnglishQuantitative SkillsAnalytical ReasoningSubject Knowledge
Practice under a timer and review weak areas after every test to improve both speed and accuracy.
NTS preparation illustration
91

Which everyday device uses electromagnetic induction to convert mechanical energy into electrical energy?

  • ABattery
  • BElectric generator
  • CSolar panel
  • DTransformer
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Correct Answer: Option B — Electric generator
Explanation: An electric generator uses electromagnetic induction by rotating a coil within a magnetic field to convert mechanical energy into electrical energy for widespread power generation.
Submitted by: PaperMCQs
92

Which scientific law explains how a changing magnetic field can induce an electric current in a conductor?

  • AOhm's law
  • BFaraday's law of electromagnetic induction
  • CNewton's law
  • DCoulomb's law
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Correct Answer: Option B — Faraday's law of electromagnetic induction
Explanation: Faraday's law of electromagnetic induction explains how a changing magnetic field through a conductor can induce an electric current forming the basis for generators and transformers.
Submitted by: PaperMCQs
93

Which law in physics relates voltage current and resistance in an electrical circuit?

  • AOhm's law
  • BNewton's law
  • CBoyle's law
  • DFaraday's law
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Correct Answer: Option A — Ohm's law
Explanation: Ohm's law states that the current flowing through a conductor is directly proportional to the voltage applied and inversely proportional to its resistance forming a foundational principle in electrical circuits.
Submitted by: PaperMCQs
94

Which everyday device measures the voltage or potential difference between two points in a circuit?

  • AAmmeter
  • BVoltmeter
  • COhmmeter
  • DGalvanometer
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Correct Answer: Option B — Voltmeter
Explanation: A voltmeter measures the voltage or potential difference between two points in a circuit and is connected in parallel to accurately record the electrical potential without disrupting current flow.
Submitted by: PaperMCQs
95

Which everyday device measures electrical current flowing through a circuit?

  • AVoltmeter
  • BAmmeter
  • COhmmeter
  • DWattmeter
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Correct Answer: Option B — Ammeter
Explanation: An ammeter measures the electrical current flowing through a circuit and is connected in series within the circuit to accurately record the amount of current passing through.
Submitted by: PaperMCQs
96

Which scientific law explains that every object attracts every other object with a force proportional to their masses?

  • ANewton's law of universal gravitation
  • BCoulomb's law
  • CBoyle's law
  • DOhm's law
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Correct Answer: Option A — Newton's law of universal gravitation
Explanation: Newton's law of universal gravitation explains that every object in the universe attracts every other object with a force proportional to their masses and inversely proportional to the square of the distance between them.
Submitted by: PaperMCQs
97

Which force is primarily responsible for keeping planets in orbit around the sun?

  • AMagnetic force
  • BGravitational force
  • CElectrostatic force
  • DNuclear force
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Correct Answer: Option B — Gravitational force
Explanation: Gravitational force between the sun and planets keeps them in stable orbits by continuously pulling them toward the sun while their forward momentum prevents them from falling in.
Submitted by: PaperMCQs
98

Which natural satellite is the only one orbiting Earth and significantly influences ocean tides?

  • AMars
  • BThe Moon
  • CPhobos
  • DTitan
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Correct Answer: Option B — The Moon
Explanation: The Moon is Earth's only natural satellite and its gravitational pull significantly influences ocean tides creating the regular rise and fall of sea levels observed worldwide.
Submitted by: PaperMCQs
99

Which planet is the closest to the sun in our solar system?

  • AVenus
  • BMercury
  • CEarth
  • DMars
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Correct Answer: Option B — Mercury
Explanation: Mercury is the closest planet to the sun in our solar system and experiences extreme temperature variations due to its proximity and lack of a substantial atmosphere.
Submitted by: PaperMCQs
100

Which planet in the solar system is known as the Red Planet due to its iron oxide rich surface?

  • AVenus
  • BMars
  • CJupiter
  • DMercury
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Correct Answer: Option B — Mars
Explanation: Mars is known as the Red Planet because its surface is rich in iron oxide or rust giving it a distinctive reddish appearance visible even from Earth.
Submitted by: PaperMCQs