Railway RRB Group D 2022 Science Practice Set 6: 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 6: Mock Test Question Answer
| Recruitment Organization | Railway Recruitment Board (RRB) |
| Post Name | Group D (Level 1 Posts) |
| Advt No. | CEN RRC 01/2019 |
| No. of Vacancies | 103769 |
| Topic | Free RRB Group D Science Practice Set/ Mock Test |
| RRB Group D Previous Papers PDF | Click Here |
Q.1 If two unequal masses posses the same kinetic energy, then the heavier mass has?
- lower speed
- hhigher speed
- lesser momentum
- greater momentum
No Option is correct. RRB Deleted this question
Q.2 Which of the following hormones brings about change in appearance seem in boys at the time of puberty?
- Testosterone
- Thyroxin
- Insulin
- Animal hormone
Option (1)
Q.3 The breakdown of pyruvate using O2 takes in the ………. ?
- lysosomes
- mitochondria
- vacuoles
- nucleus
Option (2)
Q.4 A ray of light passes from water to glass. It bends?
- towards the normal and speeds up
- towads the normal and slows down
- away from the normal and speeds up
- away from the normal and slows down
Option (2)
Q.5 The correct formula of calcium hydroxide is?
- Ca(OH)2
- Ca2OH
- CaOH2
- CaOH
Option (1)
Q.6 An electric lamp of 120W is used for 8 hours per day. Calculate the units of energy consumed by the lamp in one day?
- 2.00 units
- 12.00 units
- 1.50 units
- 0.96 units
Option (4)
Q.7 Who classified elements based on atomic numbers?
- Newlands
- Moseley
- Dobereiner
- Mendeleev
Option (2)
Q.8 In which group of the modern periodic table are halogens placed?
- 17th
- 1st
- 18th
- 16th
Option (1)
Q.9 A chemical reaction in which heat is generated is called a/an ……. ?
- Combustion reaction
- endothermic reaction
- displacement reaction
- exoterhmic reaction
Option (4)
Q.10 Electric bulbs are usually filled with chemically inactive gases like ……… ?
- chlorine
- oxygen
- nitrogen
- hydrogen
Option (3)
Q.11 Which of the following is NOT a simple permanent tissue?
- Xylem
- Sclerenchyma
- Parenchyma
- Collenchyma
Option (1)
Q.12 The pH of the solutions are given. Which of the solutions has the highest concentration of hydrogen ions?
- 4.7
- 2.4
- 10.1
- 8.0
Option (2)
Q.13 Which of the following is malleable and ductile?
- Phosphorus
- Sulphur
- Copper
- Carbon
Option (3)
Q.14 In which of the plants is the plant body NOT differentiated in to roots, stem and leaaves?
- Chara
- Spirogyra
- Marsilea
- Riccia
Option (2)
Q.15 The point where entire weight of an object acts is known as the …….. ?
- centre of gravity
- centre of friction
- centre of mass
- centre of pressure
Option (1)
Q.16 Which of the following animals produces by budding and can also can carry out regeneration?
- Planaria
- Hydra
- Plasmodium
- Yeast
Option (2)
Q.17 An electric bulb having voltage 240 V and current 0.6 A has a power of …….. ?
- 144 W
- 400 W
- 40 W
- 14.4 W
Option (1)
Q.18 The gravitational force of attraction between a satellite and the earth gives rise to ……. ?
- Centripital force
- tension
- centrifugal force
- planar force
Option (1)
Q.19 An object is stationary then the force is still acting on it is?
- Acceleration
- Momentum
- Impulse
- Weight
No option is correct. Question deleted by RRB
Q.20 ……. acts as food store in a plant seeds?
- ovule
- radicle
- plumule
- cotyledons
Option (4)
Q.21 Bifocal lenses are used by people suffering from ……. ?
- Myopia and Hypermotropia
- Hypermetropia but not Myopia
- Myopia but not Hypermetropia
- Myopia or Hypermetropia
Option (1)
Q.22 …… does not belong to the class Annelida?
- Leech
- Ascaris
- Nereis
- Earthworm
Option (2)
Q.23 An object of mass 6kg and having a potential energy of 480 J is placed at a height. Find the height of the object w.r.t. the ground. (g=10m/s)?
- 6m
- 8m
- 7m
- 4m
Optoin (2)
Q.24 ……… is the commercial unit of energy?
- Joule
- Watt hour
- Kilowatt hour
- Kilowatt
Option (3)
Q.25 Clouds looking white in colour are due to the phenomenon of ……. ?
- Reflection of light
- Scattering of light
- Reflection of light
- Radiation
Option (2)
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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.