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Railway RRB Group D 2022 Science Practice Set 3: Previous Papers Mock Test

Railway RRB Group D 2022 Science Practice Set 3: Railways has declared the exam date of Group D, which will start from 23rd February 2022 and will continue for about 2 months. 25 questions are asked from Science subject in Railway Group D paper. Which plays a very important role in selection in Railway Group D. Here we have given the questions asked by the Railway Group D Previous Papers in the form of question and answer format from Science in the previous examinations. Hope this free RRB Group D Science Questions Series will prove helpful in your selection.

Railway RRB Group D 2022 Science Practice Set 3: Previous Papers Mock Test

RRB Group D Science Practice Set 3
RRB Group D Science Practice Set 3
Recruitment OrganizationRailway Recruitment Board (RRB)
Post NameGroup D (Level 1 Posts)
Advt No. CEN RRC 01/2019
No. of Vacancies103769
TopicFree RRB Group D Science Practice Set/ Mock Test
RRB Group D Previous Papers PDFClick Here

Q.1 Our body has many organs. Which of the following organs is the largest?

  1. The brain
  2. The stomach
  3. The kidneys
  4. The skin

The skin

Q.2 One atomic mass unit (amu) is equal to?

  1. 1.6 × 10-27 kg
  2. 16 × 10-27 kg
  3. 0.16 × 1027 kg
  4. 1.6 × 1027 kg

Option (1)

Q.3 Which of the following is NOT an electronic configuration of a metal?

  1. 2,8,3
  2. 2,8,1
  3. 2,1
  4. 2,6

2,6

Q.4 …….. is probably the largest group of animals?

  1. Mollusca
  2. Nematoda
  3. Coelenterata
  4. Artropoda

Artropoda

Q.5 Which of the following is a physical change?

  1. Milk is set into curd
  2. Respiration in man
  3. Digestion in man
  4. Water changes into ice

Water changes into ice

Q.6 …….. allotrope, carbon atom are arranged in the shape of a football?

  1. C-50
  2. C-30
  3. C-40
  4. C-60

C-60

Q.7 Which of the following observations helps us to determine whether a chemical reaction has taken place?

  1. Change in color
  2. Change in state
  3. Evolution of gas
  4. All of the given options

Option (4)

Q.8 The work done by an object is 56J and the force exerted on it is 7N. Find the displacement?

  1. 8m
  2. 80m
  3. 80ms-1
  4. 80ms

8m

Q.9 How much current will an electric bulb draw from a 220 V source if the resistance of the bulb filament is 1200Ω?

  1. 18A
  2. 0.018A
  3. 1.8A
  4. 0.18A

0.18A

Q.10 A bullet of mass 40g is horizontally fired with a velocity 180ms-1 from a pistol of mass 3 kg. What is the recoil velocity of the pistol?

  1. -3.0ms-1
  2. -2.4ms-1
  3. -1.8ms-1
  4. 1.25ms-1

Option (2)

Q.11 Sound is produced due to ………. ?

  1. refraction
  2. vibration
  3. rotation
  4. reflection

vibration

Q.12 To change a temperature on the Kelvin scale to the Celsium scale, you have to …… 273 from the given temperature?

  1. add
  2. divide
  3. multiply
  4. subtract

subtract

Q.13 The full form of DNA is …… ?

  1. Do nucleic acid
  2. Deoxyribonucleic acid
  3. Deoxyribonuclear acid
  4. Deoxyribous nuclear acid

Deoxyribonucleic acid

Q.14 …………….. determine the speed of sound in a medium?

  1. Tone of a wave
  2. Timbre of the wave
  3. Properties of the medium
  4. Amplitude of the wave

Properties of the medium

Q.15 Work done on an object depends on?

A. Displacement

B. Angle between force and displacement

C. Force Applied

D. Mass of the object

  • A,B and D
  • A,B and C
  • A, C and D
  • B,C and D

A,B and C

Q.16 An object of mass 15 kg is moving with a uniform velocity of 7ms-1. What is the kinetic energy possessed by the object?

  1. 367.5 J
  2. 17.5 J
  3. 180.5 J
  4. 367.5 ms

367.5 J

Q.17 A current of 0.8A is drawn by a filament of an electric bulb for 3 minutes. Then the charge flowing through the circuit is ….. C?

  1. 144
  2. 14.4
  3. 0.144
  4. 1.44

144

Q.18 What is the relation between frequency and time period?

  1. T=1+v
  2. T=v
  3. T=1/v
  4. T=1Xv

T=1/v

Q.19 A If a plane flies a distance of 4000m with work done of 20000 J, then the force applied is?

  1. 10N
  2. 0.2N
  3. 5N
  4. 50N

5N

Q.20 Cells of the collenchyma tissue are thickened at the corners with …… ?

  1. cellulose and pertin
  2. lignin and cutin
  3. perctin and chitin
  4. suberin and cellulose

cellulose and pertin

Q.21 If the nucleus of an atom of an element contains 11 protons and 12 neutrons, then the mass number of the element is?

  1. 12
  2. 35
  3. 11
  4. 23

23

Q.22 Which of the following metals dont react with the air?

  1. Gold, Platinum
  2. Potssium, Nickel
  3. Silver, Platinum
  4. Gold, Silver

Gold, Platinum

Q.23 ……. is a pacific form of phytochrome?

  1. P760
  2. P730
  3. P630
  4. P660

P660

Q.24 Gold is mixed with copper to …… ?

  1. make gold more yellowish
  2. make gold hard
  3. make gold soft
  4. give gold luster

make gold hard

Q.25 What are the products formed when Ferrous Sulphate crystals are heated in a test tube?

  1. Ferric Oxide + Sulphur dioxide
  2. Ferric Oxide + Water + Sulphur Dioxide + Sulphur Trioxide
  3. Ferric Oxide + Suplhur Dioxide + Water
  4. Ferric Oxide + Water + Sulphur Trioxide

Ferric Oxide + Water + Sulphur Dioxide + Sulphur Trioxide

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Hello Students, Hope this series of RRB Group D Science Questions will help you in your preparation. Comment your Score, Query, Suggestions in the comment box below.

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