Railway RRB Group D 2022 Science Practice Set 5: 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 5: Previous Year MCQs
|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 Mammals have ……… ?
- dry and non-glandular skin with feathers
- glandular skin with hairs
- dry and glandular skin with feathers
- dry and non-glandular skin with scales
glandular skin with hairs
Q.2 A shell of mass 0.04 kg is fired by a gun of mass 120 kg. If the muzzle speed of the shell is 90m/s, what isthe recoil speed of the gun?
- 3 × 102 m/s
- 3 × 10-2 m/s
- 0.3 m/s
- 3 × 10-3 m/s
Q.3 The suffix attached to a hydrocarbon chain ending with a ketone is?
Q.4 A particle in the medium completes 40 vibrations in 2.5 s. The frequency of the wave is ……… ?
- 8 Hz
- 16 Hz
- 25 Hz
- 50 Hz
Q.5 How many moles of Sulphuric acid are present in 25 gms?
Q.6 The ……… cells are loosely packed so that large intercellular spaces are found?
Q.7 Group ……. contain non-reactive gases?
Q.8 A body rolling down on a hill has?
- Kinetic energy only
- Potential energy only
- Only friction force
- Both kinetic energy and potential energy
Both kinetic energy and potential energy
Q.9 The hormones produced in plants due to which the stem bends towards sunlight is ……. ?
- Ascorbic acid
Q.10 Which of the following elements having the given atomic numbers have their chemical properties resembling magnesium ?
Q.11 The valency of chlorine with respect to oxygen is ………. ?
Q.12 ……. elements has the largest atom and ……. smallest atom?
- H, O
- Li, O
- Li, H
- O, F
NO Option is correct. Question deleted by the RRB
Q.13 The force that a neutron exerts on a proton inside an atom is?
- Electrostatic force
- Nuclear force
- Tidal force
- Gravitational force
Q.14 Baking powder is a mixture of ….. and ……?
- Sodium hydrogen carbonate, sulphuric acid
- Sodium hydrogen carbonate, Tartaric acid
- Sodium hydrogen carbonate, Malic acid
- Sodium carbonate, Tartaric acid
Sodium hydrogen carbonate, Tartaric acid
Q.15 The element with atomic number 57 belong to?
Q.16 Waves produced at the bottom of the sea due to an explosion are?
- Both, transverse and longitudinal
Q.17 The angle between displacement and force applied when no work is done is ……. ?
- 0 degree
- 45 degree
- 120 degree
- 90 degree
Q.18 Sodium hydroxide reacts with …… to form a solution of table salt?
- Carbon dioxide gas
- Sodium chloride solution
- Hydrochloric acid
- Oxygen gas
Q.19 9800 Joule of energy was spent to raise a mass of 70 kg. The mass was raised to a height of?
- -14 m
- -140 m
- 14 m
- 140 m
Q.20 ……… is the rate of doing work?
Q.21 The velocity of vertically thrown ball, with time, will be?
- Downwards negative
- Downwards positive
- Upwards negative
- Upwards positive
NO Option is correct. Question deleted by RRB
Q.22 Which of the following comounds does NOT posses water of cystallisation?
- Baking Soda
- Washing Soda
- Copper Sulphate
Q.23 Sound waves with frequencies below the audible range are called?
Q.24 5-8% of acetic acid is called?
- glacial acetic acid
Q.25 The registors one of 10 ohm and the otherof 20 ohm are connected in a series to a 6V battery. The current in the circuit will be ……. ?
- 0.3 A
- 0.6 A
- 0.2 A
- 0.9 A
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.