RRB Group D - General Science PYQ Quiz 91
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 91 — 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 properties makes ethanol a better alternative fuel compared to petrol?
- A.Ethanol is a solid fuel
- B.Ethanol burns with a clean, smokeless flame
- C.Ethanol has a higher boiling point than petrol
- D.Ethanol produces harmful smoke when burned
Show answer
Answer: B. Ethanol burns with a clean, smokeless flame
Q2.What is the molecular mass of glucose? (C = 12 u, H = 1 u, O = 16 u)
- A.180 u
- B.120 u
- C.150 u
- D.160 u
Show answer
Answer: A. 180 u
Q3.The ores are converted to their respective oxides by the process of roasting.
- A.sulphite
- B.sulphide
- C.chloride
- D.carbonate
Show answer
Answer: B. sulphide
Q4.A white solid reacts with dilute HCl, producing a gas that turns lime water milky. What can be definitely concluded?
- A.The gas is carbon dioxide; the solid is either a carbonate or bicarbonate.
- B.The gas is hydrogen, indicating a reactive metal.
- C.The solid is calcium carbonate.
- D.The solid is a metal carbonate, releasing carbon dioxide.
Show answer
Answer: A. The gas is carbon dioxide; the solid is either a carbonate or bicarbonate.
Q5.Which of the following is a chemical property?
- A.Boiling point
- B.Melting point
- C.Burning in air
- D.Fluidity
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Answer: C. Burning in air
Q6.If a device is rated 90 W at 120 V, the current drawn is .
- A.1.50 A
- B.1.33 A
- C.0.25 A
- D.0.75 A
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Answer: D. 0.75 A
Q7.Which of the following groups is most at risk of HIV infections?
- A.People who maintain personal hygiene
- B.People who exercise regularly
- C.Individuals who have multiple unprotected sexual partners
- D.People who do not exercise regularly
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Answer: C. Individuals who have multiple unprotected sexual partners
Q8.Apiaries help us in the production of which of the following food materials?
- A.Fish
- B.Milk
- C.Poultry egg
- D.Honey
Show answer
Answer: D. Honey
Q9.The following vehicles are all moving at a velocity of 50 km/hr. All the vehicles need to be stopped at the same point. Which vehicle has to apply more force in breaks to stop the vehicle?
- A.Scooter
- B.Bus
- C.Car
- D.Bicycle
Show answer
Answer: B. Bus
Q10.Which of the following is formed by each step of the food chain?
- A.Ozone layer
- B.Trophic level
- C.Troposphere level
- D.Stratosphere level
Show answer
Answer: B. Trophic level
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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.