RRB Group D - General Science PYQ Quiz 209
10 PYQ questions from RRB Group D - General Science
About This Quiz
This is one set from a larger bank. See all RRB Group D General Science previous year questions.
RRB Group D - General Science PYQ Quiz 209 — Questions with Solutions
All 10 questions from this quiz with the correct answer and explanation. Attempt them yourself first, then open each solution to check your reasoning.
Q1.A sound wave has a wavelength of 0.5 m and frequency 680 Hz. The speed of sound is:
- A.170 m/s
- B.680 m/s
- C.1360 m/s
- D.340 m/s
Show answer
Answer: D. 340 m/s
Q2.When a more reactive metal is placed in the salt solution of a less reactive metal, it:
- A.gets oxidised
- B.displaces the less reactive metal
- C.gets reduced
- D.does not react
Show answer
Answer: B. displaces the less reactive metal
Q3.When an object is placed at the focus of a convex lens, the formation of image is .
- A.at the centre of curvature
- B.between F and 2F
- C.at infinity
- D.on the same side as the object
Show answer
Answer: C. at infinity
Q4.Which of the following best explains the importance of fertilisation in sexual reproduction?
- A.It increases the number of eggs in females
- B.It cleanses the reproductive tract
- C.It helps the uterus for menstrual flow
- D.It allows the formation of an embryo
Show answer
Answer: D. It allows the formation of an embryo
Q5.Which of the following trophic levels is occupied by the tertiary consumers?
- A.First trophic level
- B.Second trophic level
- C.Fourth trophic level
- D.Third trophic level
Show answer
Answer: C. Fourth trophic level
Q6.What is the primary purpose of the process of nutrition in living organisms?
- A.To form oxygen molecules required for photosynthesis
- B.To obtain energy and raw materials from external sources
- C.To regulate visible movement and reproduction
- D.To produce carbon dioxide and other waste materials
Show answer
Answer: B. To obtain energy and raw materials from external sources
Q7.What happens to the egg if it is NOT fertilised?
- A.It implants in the uterus.
- B.It survives for a week.
- C.It becomes an embryo.
- D.It lives for about one day and then disintegrates.
Show answer
Answer: D. It lives for about one day and then disintegrates.
Q8.What does the term 'formula unit mass' refer to?
- A.Total mass of atoms in one mole of a compound
- B.Sum of atomic masses of all atoms in the compound
- C.Mass of a single proton in an atom
- D.Mass of one molecule of a covalent compound
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Answer: B. Sum of atomic masses of all atoms in the compound
Q9.Which of the following is NOT a typical characteristic of plants produced through vegetative propagation?
- A.They show variation in characteristics among offspring.
- B.They do not require pollination.
- C.They flower and fruit earlier than seed-grown plants.
- D.They are genetically identical to the parent.
Show answer
Answer: A. They show variation in characteristics among offspring.
Q10.A basic solution will have a pH:
- A.Less than 7
- B.Greater than 7
- C.Equal to 7
- D.That cannot be predicted
Show answer
Answer: B. Greater than 7
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