RRB Group D - General Science PYQ Quiz 270
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 270 — 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.Which of the following pairs will be in the same homologous series?
- A.CH₃OH and HCOOH
- B.C₂H₅OH and CH₃COOH
- C.CH₃COCH₃ and C₂H₅COCH₃
- D.CH₃CHO and CH₃OH
Show answer
Answer: C. CH₃COCH₃ and C₂H₅COCH₃
Q2.A concave mirror is made from a section of the surface of a sphere of radius 18.0 cm. According to New Cartesian Sign Convention, its principal focus is located at x = ______.
- A.9 cm
- B.−18 cm
- C.−9 cm
- D.18 cm
Show answer
Answer: C. −9 cm
Q3.Which of the following organisms has a three chambered heart?
- A.Fish
- B.Frog
- C.Bird
- D.Man
Show answer
Answer: B. Frog
Q4.Some features of a respiratory surface in animals are mentioned below. Select the INCORRECT option.
- A.presence of a mechanism for moving air in and out of this area
- B.Is very thick
- C.Has a large surface area
- D.Usually placed inside the body
Show answer
Answer: B. Is very thick
Q5.The carbon and energy requirements of plants are fulfilled by which of the following processes?
- A.Transpiration
- B.Translocation
- C.Absorption
- D.Photosynthesis
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Answer: D. Photosynthesis
Q6.Which of the following has NO effect on the resistance of a conductor?
- A.Thickness
- B.Temperature
- C.Length
- D.Shape
Show answer
Answer: D. Shape
Q7.The power of a convex lens of focal length 20 cm is ________.
- A.−5.0 D
- B.5.0 D
- C.−0.05 D
- D.0.05 D
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Answer: B. 5.0 D
Q8.Two resistors, A (4 Ω) and B (20 Ω), are connected in parallel. The combination is connected to a 6 V battery. The currents in A and B are respectively ________.
- A.0.6 A and 0.6 A
- B.0.2 A and 0.2 A
- C.0.6 A and 0.3 A
- D.0.3 A and 0.6 A
Show answer
Answer: C. 0.6 A and 0.3 A
Q9.Which of the following cellular components is absent in most of the prokaryotes?
- A.Ribosome
- B.Cell wall
- C.Cytoplasm
- D.Nuclear membrane
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Answer: D. Nuclear membrane
Q10.Magnetic field lines at north pole of a magnet are:
- A.parallel lines
- B.lines merging at the pole
- C.intersecting lines
- D.lines emerging from the pole
Show answer
Answer: D. lines emerging from the pole
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