RRB Group D - General Science PYQ Quiz 115
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 115 — 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 statements is correct regarding the mitochondria in a plant cell?
- A.Mitochondria does not have its own DNA.
- B.Mitochondria performs photosynthesis.
- C.Mitochondria has a single membranous covering.
- D.The mitochondrial inner membrane is deeply folded.
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Answer: D. The mitochondrial inner membrane is deeply folded.
Q2.Which of the following plants is unisexual?
- A.Papaya
- B.Mustard
- C.Pea
- D.China rose
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Answer: A. Papaya
Q3.What should be the position of the object, if a concave mirror forms a virtual, erect and enlarged image of the object?
- A.The object is placed at the focus of the mirror.
- B.The object is placed at the centre of curvature of the mirror.
- C.The object is placed between the focus and the centre of curvature.
- D.The object is placed between the pole and the focus of the mirror.
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Answer: D. The object is placed between the pole and the focus of the mirror.
Q4.Flushing of which gas is usually preferred in order to prevent the rancidity of the packaged food items?
- A.Nitrogen
- B.Nitrogen dioxide
- C.Nitric oxide
- D.Dinitrogen trioxide
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Answer: A. Nitrogen
Q5.Which of the following statements is true according to the First Law of Motion?
- A.A car accelerates when the engine is started.
- B.A stone falling freely under gravity.
- C.A person continues to move forward when a car stops suddenly.
- D.A rocket launching upward.
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Answer: C. A person continues to move forward when a car stops suddenly.
Q6.In which of the following media is the speed of sound the highest?
- A.Iron
- B.Vacuum
- C.Air at room temperature
- D.Water
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Answer: A. Iron
Q7.Why is it impossible for two magnetic field lines to cross each other at a single point?
- A.Because the magnetic field strength would be zero at that point
- B.Because they are always parallel inside the magnet
- C.Because they repel each other due to like polarity
- D.Because it would imply the compass needle could point in two directions simultaneously
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Answer: D. Because it would imply the compass needle could point in two directions simultaneously
Q8.Which of the following statements is true about modern fish farming?
- A.Hormones are used for fish breeding
- B.Enzymes are used to help fish grow bigger
- C.Fish farming cannot be done in ponds
- D.All fish seeds are collected from rivers
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Answer: A. Hormones are used for fish breeding
Q9.The extraction of metals from their ores is known as which of the following?
- A.Mining
- B.Metallurgy
- C.Refining
- D.Smelting
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Answer: B. Metallurgy
Q10.A resistor of 4 Ω produces 64 J of heat every second. What is the potential difference across it?
- A.8 V
- B.16 V
- C.64 A
- D.16 A
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Answer: B. 16 V
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Which government exams does this quiz prepare me for?
General Science questions appear regularly in SSC CGL, CHSL, MTS, GD; IBPS PO, Clerk; SBI PO, Clerk; RRB NTPC, Group D; UPSC prelims and most State PSC exams. The specific weightage varies by exam — check the exam pattern on the corresponding AajExam exam page for details.