RRB Group D GS Practice Set 13 (MCQ)

RRB Group D General Science (GS) Practice Set 13 : Indian Railway Recruitment Board (RRB) has started the recruitment process for Group D posts. There is a provision to complete this examination in several phases, and the first phase examination will be conducted from 17 August 2022 to 25 August 2022. It is worth mentioning that now the candidate will have to give only one examination and on the basis of that the candidates will be selected and the vacant posts will be filled.

In such a situation, 25 important questions and answers of General Science related to Group D exam have been included in front of you through this article. Practice these questions before going to the exam and strengthen your preparation.

RRB Group D General Science (GS) Practice Set 13
RRB Group D General Science (GS) Practice Set 13

RRB Group D General Science (GS) Practice Set 13

Question. Which one of the following is not an oxide?

Answer: 3

Question. from violet to red in the solar spectrum

  • Deviation decreases, refractive index also decreases
  • Deviation decreases, refractive index increases
  • Deviation increases, refractive index increases
  • Deviation increases, refractive index decreases

Answer 1

Question. The ratio of the weights of oxygen in Fe2O3 and FeO will be-

Answer 1

Question. Which of the following statements is not true about acids?

  • It is bitter in taste.
  • It forms H+ in aqueous medium/liquid state
  • It converts blue litmus to red.
  • Reacts with metals and bicarbonates to form H2, CO and salts.

Answer 1

Question. The second most used language on the World Wide Web is?

  • Germany
  • Chinese (Chinese)
  • English (English)
  • French (French)

Answer: 2

Question. How much CH4 (methane) is needed to get 10 moles of water?

  • 2.5 mol
  • 5.0 mol
  • 10.0 mol
  • 25.0 mol

Answer: 2

Question. The frequency of a sound is 2 kHz and its wavelength is 35 cm. How long will it take to cover this 1.5 km distance?

  • 4.1 sec
  • 3.8 sec
  • 4.2 sec
  • 2.1 sec

Answer: 4

Question. action of oxygen

  • turns blue litmus red
  • Turns red litmus blue.
  • discolors litmus
  • indifferent to litmus

Answer: 4

Question. There is a difference of units in the molecular mass of alcohol and ethyl alcohol.

Answer: 3

Question. The average blood flow from the kidney per minute is

  • 1000 cc
  • 1200 cc
  • 200 cc
  • 500 cc

Answer: 2

Question. Which of the following is preserved in Bohr’s theory?

  • Velocity
  • Energy
  • Angular momentum
  • Linear momentum

Answer: 2

Question. Gel meter is used to determine—

  • amount of pectin
  • TSS volume of
  • sugar content
  • amount of acid

Answer 1

Question. What is the molecular weight of Al2(SO4)3?

Answer: 4

Question. What is an increased heart rate called?

  • pericardia
  • tachycardia
  • gicardia
  • typicardia

Answer: 2

Question. By whom was the first microcomputer made?

  • E. D. Robert
  • Charles Babbage
  • von neumann
  • A. L. Turing

Answer 1

Question. The temperature at which alcohol freezes is-

  • -114°C
  • -39°C
  • -39°F
  • -73°C

Answer 1

Question. How many metalloids are there in the fourth period of the modern periodic table?

Answer: 2

Question. Two objects of equal mass are said to have the same-

  • volume
  • Substance
  • inertia
  • density

Answer: 3

Question. Approximately how much thermal energy (in calories) will be produced by a 210 watt bulb in 5 minutes?

  • 1 x 10³
  • 63 × 10³
  • 15 x 10³
  • 8 x 10³

Answer: 3

Question. The number of moles in 224 ml of hydrogen gas at STP is

Answer: 2

Question. The purpose of smelting of ores is—

  • to obliterate
  • to oxidize
  • get alloy
  • separation of airborne impurities

Answer 1

Question. The image formed by a concave lens is always, by principle

  • lies between F and pole
  • gets smaller
  • is virtual
  • All of the above

Answer: 4

Question. The principle of pin hole camera is based on—

  • on imputation
  • on interference
  • on a straight line of light
  • none of these

Answer: 3

Question. What is the deficiency of Brown Heart disease?

  • Potassium (K)
  • Boron (B)
  • Molybdinum (Mo)
  • Iron (Fe)

Answer: 2

Question. Which of the following units is used to measure the speed of a computer?

Answer: 2

What would be the correct answer to this question? Do give us your answer in the comment section.


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