RRB Group D - General Science PYQ Quiz 227
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 227 — 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.What is the name of the effect seen when light is scattered by tiny particles in a colloidal solution?
- A.Refraction
- B.Dispersion
- C.Reflection
- D.Tyndall Effect
Show answer
Answer: D. Tyndall Effect
Q2.Which of the following is INCORRECT?
- A.Buoyant force = weight of fluid displaced
- B.Buoyant force is maximum for fully submerged body.
- C.Buoyant force is independent of fluid density.
- D.Buoyant force acts upwards.
Show answer
Answer: C. Buoyant force is independent of fluid density.
Q3.Salt dissolves in water because:
- A.It has lower density than water and floats easily
- B.It melts at room temperature forming a liquid
- C.It evaporates quickly in water during mixing
- D.Water has space between particles for ions to enter
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Answer: D. Water has space between particles for ions to enter
Q4.An electric iron having resistance (R) has a power (P) associated with it when current (I) flows through it on applying potential difference (V) across its ends. Which of the following relations is NOT correct?
- A.P = VI
- B.P = I2R
- C.P = V2/R
- D.P = V/I
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Answer: D. P = V/I
Q5.Which of the following is an allotrope of carbon with a cage-like structure?
- A.Graphite
- B.Fullerene
- C.Diamond
- D.Charcoal Section : Mathematics
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Answer: B. Fullerene
Q6.An object is placed at infinity in front of a concave mirror. Where is the image formed?
- A.At the pole (P)
- B.At the centre of curvature (
- C.C. Behind the mirror
- D.At the principal focus (F)
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Answer: D. At the principal focus (F)
Q7.What is the atomic mass of magnesium?
- A.6
- B.1
- C.24
- D.14
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Answer: C. 24
Q8.Which method is used to extract metals that are high in the reactivity series?
- A.Roasting
- B.Electrolytic reduction
- C.Calcination
- D.Heating with carbon
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Answer: B. Electrolytic reduction
Q9.The emergent ray from a rectangular glass slab is:
- A.Bent towards the normal
- B.Parallel to the incident ray
- C.Bent away from the normal
- D.Perpendicular to the incident ray
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Answer: B. Parallel to the incident ray
Q10.If the stamens of a flower are non-functional, which process will NOT be done?
- A.Pollen production
- B.Ovule development
- C.Bud protection
- D.Fruit dispersal
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Answer: A. Pollen production
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