RRB Group D - General Science PYQ Quiz 255
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 255 — 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 is NOT a unit of heat energy?
- A.Kilowatt
- B.Watt second
- C.Calorie
- D.Joule
Show answer
Answer: A. Kilowatt
Q2.Which of the following has the largest atomic radius?
- A.Iodine
- B.Fluorine
- C.Chlorine
- D.Oxygen
Show answer
Answer: A. Iodine
Q3.The current through a horizontal straight wire flows from west to east. The direction of the magnetic field lines as viewed from the east end will be:
- A.anticlockwise in a plane perpendicular to the wire
- B.anticlockwise in the plane of the wire
- C.clockwise in a plane perpendicular to the wire
- D.clockwise in the plane of the wire
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Answer: A. anticlockwise in a plane perpendicular to the wire
Q4.Which of the following rules is used to determine the force on a current carrying conductor kept inside a magnetic field?
- A.Right hand thumb rule
- B.Maxwell's corkscrew rule
- C.Fleming's right-hand rule
- D.Fleming's left-hand rule
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Answer: D. Fleming's left-hand rule
Q5.How will the plant be affected if the rate of respiration becomes more than the rate of photosynthesis?
- A.More food will be oxidised than that produced, and plant will starve and die.
- B.Plants will store a large amount of food
- C.Plant growth will slow down.
- D.Plant growth will increase due to more energy produced.
Show answer
Answer: A. More food will be oxidised than that produced, and plant will starve and die.
Q6.The _______ DOES NOT function as an excretory organ in humans.
- A.lungs
- B.skin
- C.small intestine
- D.large intestine
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Answer: C. small intestine
Q7.The property/properties that must be possessed by a material to be chosen for making the heating element of heating devices is/are: (i) high melting point (ii) high resistivity (iii) low resistance
- A.Only (i) and (iii)
- B.Only (i) and (ii)
- C.Only (ii) and (iii)
- D.(i), (ii), (iii)
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Answer: B. Only (i) and (ii)
Q8.The magnification produced by a spherical mirror is −0.5. The image formed by the mirror is:
- A.virtual, erect and enlarged
- B.real, inverted and diminished
- C.real, inverted and enlarged
- D.virtual, erect and diminished
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Answer: B. real, inverted and diminished
Q9.Some plants can also produce new plants from their roots. An example of such a plant is _______.
- A.Cactus
- B.Ginger
- C.Sweet Potato
- D.Bryophyllum
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Answer: C. Sweet Potato
Q10.Which of the following chemical reactions represents the chlor-alkali process?
- A.Ca(OH)₂ + Cl₂ → CaOCl₂ + H₂O
- B.NaHCO₃ + H⁺ → CO₂ + H₂O + Sodium salt of acid
- C.NaCl + H₂O + CO₂ + NH₃ → NH₄Cl + NaHCO₃
- D.2 NaCl (aq) + 2 H₂O (l) → 2 NaOH (aq) + Cl₂ (g) + H₂ (g)
Show answer
Answer: D. 2 NaCl (aq) + 2 H₂O (l) → 2 NaOH (aq) + Cl₂ (g) + H₂ (g)
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