BPSC – Bihar Public Service Commission Conduct the Joint Prelims Examination (63rd) – 2018 Question Papers with Answer Key is Available Here –
Exam – BPSC Pre (63rd) – 2018
Subject – General Studies
Number Of Questions – 150
Date of Exam – 01 – July – 2018
Bihar PCS Prelims Examination (BPCS Pre Exam – 63rd) – 2018
General Studies
1. Quartz crystals used in clocks are
(A) Sodium silicate
(B) Silicon dioxide
(C) Germanium dioxide
(D) Titanium dioxide
(E) None of the above/More than one above.
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2. Bromine is a
(A) Colourless gas
(B) Brown solid
(C) Highly inflammable gas
(D) Red liquid
(E) None of the above/More than one above.
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3. Gases used in welding are
(A) Oxygen and hydrogen
(B) Oxygen and nitrogen
(C) Oxygen and acetylene
(D) Hydrogen and acetylene
(E) None of the above/More than one above.
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4. Galvanized iron pipes have a coating of
(A) Zinc
(B) Mercury
(C) Lead
(D) Chromium
(E) None of the above/More than one above.
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5. The wavelength of visible spectrum is in the range
(A) 1300 A-3900 A
(B) 3900 A-7600 A
(C) 7800 A-8200 A
(D) 8500 A-9800 A
(E) None of the above/More than one above.
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6. Detergents used for cleaning clothes are
(A) Carbonates
(B) Bicarbonates
(C) Bismuthates
(D) Sulfonates
(E) None of the above/More than one above.
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7. The element excreted through human sweat is
(A) Sulfur
(B) Iron
(C) Magnesium
(D) Zinc
(E) None of the above/More than one above.
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8. Blue vitriol is chemically
(A) Sodium sulfate
(B) Nickel sulfate
(C) Copper sulfate
(D) Iron sulfate
(E) None of the above/More than one above.
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9. The positively charged part at the centre of the atom is called
(A) Proton
(B) Neutron
(C) Electron
(D) Nucleus
(E) None of the above/More than one above.
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10. The conversation of solid directly into gas
(A) Sublimation
(B) Condensation
(C) Evaporation
(D) Boiling
(E) None of the above/More than one above.
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11. In human system, insulin controls the metabolism of
(A) fats
(B) carbohydrates
(C) proteins
(D) nucleic acids
(E) None of the above/More than one above.
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12. The antibiotic among the following is
(A) penicillin
(B) aspirin
(C) paracetamol
(D) sulfadiazine
(E) None of the above/More than one above.
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13. Which of the following is mostly carbohydrate
(A) Wheat
(B) Barley
(C) Rice
(D) Maize
(E) None of the above/More than one above.
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14. The heaviest metal among the following is
(A) Gold
(B) Silver
(C) Mercury
(D) Platinum
(E) None of the above/More than one above.
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15. Stainless steel is an alloy of
(A) iron and nickel
(B) iron and chromium
(C) copper and chromium
(D) iron and zinc
(E) None of the above/More than one above.
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16. To protect broken bones, plaster of paris is used. It is
(A) slaked lime
(B) calcium carbonate
(C) calcium oxide
(D) gypsum
(E) None of the above/More than one above.
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17. A hydrocarbon in which two carbon atoms are joined by a double bond is called as an
(A) alkane
(B) alkene
(C) alkyne
(D) ionic bond
(E) None of the above/More than one above.
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18. The chemical name of vinegar is
(A) methanol
(B) ethanol
(C) acetic acid
(D) ethyl acetate
(E) None of the above/More than one above.
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19. The acid used in car battery is
(A) acetic acid
(B) hydrochloric acid
(C) nitric acid
(D) sulfuric acid
(E) None of the above/More than one above.
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20. The gas, which comes out on opening a soda water bottle is
(A) carbon dioxide
(B) hydrogen
(C) nitrogen
(D) sulfur dioxide
(E) None of the above/More than one above.
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Q.22 d
mahamood abu zeid from egypt.
Thanks for the correction.
A.No. 85. Should be option (D) 42% – 14th Finance Commission Tax Devolution to states.