Bihar Public Service Commission (BPSC) has Conduct the BPSC 67th CCE (Combined Competitive Examination) Prelims Exam 2022 held on 08 May 2022. This (67th BPSC CCE Prelims Exam 2022) Question Paper available here with Answer Key.
Exam – 67th BPSC Pre Exam 2022
Subject – General Studies
Number Of Questions – 150
Paper Set – A
Date of Exam – 08 May 2022
| Read … BPSC 67th Combined Competitive Pre Exam – 8 May 2022 (Answer Key) in Hindi |
Bihar PCS 67th Combined Competitive Prelims Exam 2022
(Answer Key)
1. A person standing in front of a mirror finds his image larger than himself This implies that the mirror is
(A) concave
(B) plane
(C) convex
(D) cylindrical with bulging side outwards
(E) None of the above/More than one of the above
Show Answer/Hide
2. A fan produces a feeling of comfort during the hot weather because
(A) fan supplies cool air
(B) our body radiates more heat in air
(C) conductivity of air increases
(D) our perspiration evaporates rapidly
(E) None of the above/More than one of the above
Show Answer/Hide
3. Twinkling of stars in clear sky during nighttime can be explained with
(A) refraction of light
(B) reflection of light
(C) polarization of light
(D) interference of light
(E) None of the above/More than one of the above
Show Answer/Hide
4. Hydrogen bomb is based on the principle of
(A) controlled fusion reaction
(B) uncontrolled fusion reaction
(C) controlled fission reaction
(D) uncontrolled fission reaction
(E) None of the above/More than one of the above
Show Answer/Hide
5. Food gets cooked faster in a pressure cooker because
(A) water starts boiling at low temperature due to high pressure
(B) water starts boiling at high temperature due to high pressure
(C) water starts boiling at low temperature due to low pressure
(D) water starts boiling at high temperature due to low pressure
(E) None of the above/More than one of the above
Show Answer/Hide
6. If the doors of a refrigerator are left open for few hours, then the room temperature will
(A) decrease
(B) increase
(C) remain the same
(D) decrease only in the area in the vicinity of the refrigerator
(E) None of the above/More than one of the above
Show Answer/Hide
7. A piece of ice is floating in a beaker containing water up to its brim. When whole of the ice melts
(A) the water will spill on the floor
(B) the level of water will come down in the beaker
(C) the level of water will first fall and then it will spill out of the beaker
(D) the water level will not change
(E) None of the above / More than one of the above
Show Answer/Hide
8. Which of the following is not correctly matched?
(A) Voltmeter-Potential difference
(B) Ammeter-Electric current
(C) Potentiometer-Electromotive force
(D) Galvanometer-Electric resistance
(E) None of the above/More than one of the above
Show Answer/Hide
9. If a feather, a rubber ball and a wooden ball are falling freely simultaneously from the same height in vacuum, then
(A) the feather will reach at the ground first
(B) the rubber ball will reach at the ground first
(C) the wooden ball will reach at the ground first
(D) all the three will reach at the ground together
(E) None of the above/More than one of the above
Show Answer/Hide
10. When a soap film on the water is seen in the daytime, it shows beautiful colours. This phenomenon is due to
(A) diffraction of light
(B) refraction of light
(C) polarization of light
(D) interference of light
(E) None of the above/More than one of the above
Show Answer/Hide
11. The mass number of a nucleus is
(A) the sum of the numbers of neutrons and protons
(B) the total mass of neutrons and protons
(C) always more than the atomic weight
(D) always less than its atomic number
(E) None of the above/More than one of the above
Show Answer/Hide
12. Which of the following is the main ingredient of cement?
(A) Limestone
(B) Silica clay
(C) Gypsum
(D) Ash
(E) None of the above/More than one of the above
Show Answer/Hide
13. Isotopes of an element differ in
(A) the number of protons
(B) the mass number
(C) the number of electrons
(D) the atomic number
(E) None of the above/More than one of the above
Show Answer/Hide
14. The temperature point at which solid, liquid and gaseous states may stay together is known as
(A) boiling point
(B) melting point
(C) freezing point
(D) triple point
(E) None of the above/More than one of the above
Show Answer/Hide
15. The most important ore of aluminum
(A) bauxite
(B) calamine
(C) calcite
(D) galena
(E) None of the above/More than one of the above
Show Answer/Hide
16. Which among the following solutions has pH value more than 7?
(A) Buffer solution
(B) Basic solution
(C) Acidic solution
(D) Neutral solution
(E) None of the above/More than one of the above
Show Answer/Hide
17. Which among the following is an incorrect option?
(A) Atom is electrically neutral due to presence of protons and electrons inside the nucleus
(B) Electrons are negatively charged and have negligible mass.
(C) Atomic number is the number of protons in an atom of an element.
(D) Isotopes are useful as nuclear fuel, in medical field, in carbon dating, etc.
(E) None of the above/More than one of the above
Show Answer/Hide
18. Select the incorrect statement out of the following
(A) Cotton is suitable for use as clothing in summer because it absorbs moisture
(B) Polycarbonate is used for making CDs.
(C) Acrylic is also called artificial silk as it is prepared from cotton but has shine like silk.
(D) Teflon is used for coating non-stick Kitchenwares.
(E) None of the above/More than one of the above
Show Answer/Hide
19. Which of the following statements about graphite and diamond is true?
(A) They have the same crystal structure.
(B) They have the same hardness.
(C) They have the same electrical conductivity
(D) They can undergo the same chemical reaction.
(E) None of the above/More than one of the above
Show Answer/Hide
20. Which of the following is the major constituent of the liquefied petroleum gas?
(A) Methane
(B) Ethane
(C) Propane
(D) Butane
(E) None of the above/More than one of the above
Show Answer/Hide
You might be interested in
