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Bihar 2022 Previous Year GK Questions with Answers

GK questions asked in Bihar 2022, with answers and explanations.

Previous Year Questions

Q1.General ScienceAsked in: Bihar · 14 Oct 2022Medium

Thermoplasts

  1. A.have a three-dimensional network of primary bonds as polymerization proceeds in all directions
  2. B.are long chain molecules held together by secondary bonds
  3. C.have decreasing ability to deform plastically with increasing temperature
  4. D.have secondary bonds and as the thermal energy increases, the secondary bonds never break
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Correct answer: B. are long chain molecules held together by secondary bonds

In a thermoplastic the polymer exists as long linear or lightly branched chains, and one chain is held to the next only by weak secondary forces such as van der Waals attraction.

Q2.General ScienceAsked in: Bihar · 25th March 2022Easy

Teflon is used for bearings because of

  1. A.low coefficient of friction
  2. B.better heat dissipation
  3. C.smaller space consideration
  4. D.All of the above
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Correct answer: A. low coefficient of friction

Teflon is the trade name of polytetrafluoroethylene, a polymer whose surface is one of the most slippery among solids, with a coefficient of friction of about 0.04.

Q3.General ScienceAsked in: Bihar · 25 Mar 2022Medium

If a wire is placed parallel to the lines of force in a magnetic field and a current flows in the wire, then

  1. A.the wire will experience a force in the direction of the magnetic field
  2. B.the wire will not experience any force at all
  3. C.the wire will experience a force in the direction opposite to the field
  4. D.it will experience a force in the direction perpendicular to the lines of force
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Correct answer: B. the wire will not experience any force at all

The force on a current carrying conductor kept in a magnetic field is given by F equal to B I L sin theta, where theta is the angle between the direction of the current and the direction of the field.

Q4.General ScienceAsked in: Bihar · 25 March 2022Easy

The magnetic effect of current was discovered by

  1. A.Maxwell
  2. B.Fleming
  3. C.Oersted
  4. D.Faraday
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Correct answer: C. Oersted

In 1820 the Danish scientist Hans Christian Oersted saw that a compass needle kept near a wire swung aside the moment a current flowed through the wire, and swung the other way when the current was reversed.

Q5.GeographyAsked in: Bihar · BPSC 67th CCE Pre re-exam, 30 Sep 2022Easy

The Sargasso Sea is a part of the

  1. A.Arctic Ocean
  2. B.North Atlantic Ocean
  3. C.South Atlantic Ocean
  4. D.Indian Ocean
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Correct answer: B. North Atlantic Ocean

The Sargasso Sea lies in the middle of the North Atlantic and is the only sea in the world with no coastline.

All State Exams previous year questions