RRB Group D - General Science PYQ Quiz 249
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 249 — 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.aHNO₃(aq) + bCa(OH)₂(aq) → Ca(NO₃)₂ + cH₂O The coefficients a, b and c in the given balanced chemical equation are:
- A.1, 2 and 2, respectively
- B.2, 1 and 1, respectively
- C.2, 1 and 2, respectively
- D.1, 2 and 1, respectively
Show answer
Answer: C. 2, 1 and 2, respectively
Q2.The power of an electric bulb of resistance 18 ohm if no voltage is applied across it is ______
- A.0 W
- B.18 W
- C.infinity
- D.9 W
Show answer
Answer: A. 0 W
Q3.Which of the following salts is an active ingredient in antacids?
- A.NaHCO₃
- B.Na₂CO₃
- C.CaCl₂
- D.CaOCl₂
Show answer
Answer: A. NaHCO₃
Q4.From the following, identify the applications of scattering of light. (a) Danger signals being red (b) Advanced sun rise and delayed sun set (c) Twinkling of stars (d) Tyndall effect (e) Redness of sun and blueness of sky
- A.(b), (c), (d)
- B.(c), (d), (e)
- C.(a), (b), (c)
- D.(d), (e), (a)
Show answer
Answer: D. (d), (e), (a)
Q5.Meristematic tissue cells lack ______.
- A.cytoplasm
- B.nucleus
- C.cell wall
- D.vacuoles
Show answer
Answer: D. vacuoles
Q6.A galvanometer when connected in a circuit, detects the presence of:
- A.Current
- B.Frequency
- C.Resistance
- D.Potential difference
Show answer
Answer: A. Current
Q7.How many elements exist in nature according to Newlands law of octaves?
- A.56
- B.36
- C.46
- D.76
Show answer
Answer: A. 56
Q8.Which of the following vessels carries blood away from the heart to various organs of the body, except the lungs?
- A.Pulmonary artery
- B.Aorta
- C.Pulmonary vein
- D.Vena cava
Show answer
Answer: B. Aorta
Q9.How many number of bonds do the single carbon atom form?
- A.1
- B.2
- C.3
- D.4
Show answer
Answer: D. 4
Q10.Which of the following with respect to the Modern Periodic Table is NOT correct?
- A.The elements present in the same group have same number of valence electrons.
- B.It has 18 groups and 7 periods.
- C.Na, Mg and S belongs to the 4th period of the Modern Periodic Table.
- D.The number of shells increases as we go down the group.
Show answer
Answer: C. Na, Mg and S belongs to the 4th period of the Modern Periodic Table.
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