# General Science Questions & Answers for RRB Group-D Set-2 PDF

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### General Science Questions & Answers for RRB Group- D Set-2 PDF

Download Top-15 RRB Group-D General Science Questions set-2 PDF. RRB GROUP-D Science questions based on asked questions in previous exam papers very important for the Railway Group-D exam.

Question 1: Boyles law states that :

a) The pressure of a gas varies directly with temperature at constant volume i.e. $P \propto T$.

b) The product of pressure and volume of a given mass of a gas is constant at constant temperature i.e. PV= constant.

c)  The volume of a gas varies directly with temperature at constant pressure i.e. $V \propto T$.

d) The pressure of a gas varies directly with volume at constant temperature i.e. $P \propto V$.

Question 2: The pressure exerted on the walls of a container by a gas is due to the fact that Gas molecules :

a) Stick to the walls of the container

b) Lose their kinetic energy

c) Get accelerated towards the wall

d) Change their momentum due to collision with the wall.

Question 3: Which of the following is not a Physical change ?

a) Dissolution of Oxygen in water

b) Dissolution of Carbon dioxide in water

c) Dissolution of sail in water

d) None of the above

Question 4: In science a push or pull of an object is called ________.

a) Pick

b) Lift

c) Force

d) Shut

Question 5: The instrument used to measure Blood Pressure is

a) Sphygmomano-meter

b) Thermometer

c) ECG

d) Stethoscope

Question 6: Certain desert lizards excrete their wastes in dry form. This serves as a means of

a) protective mechanism against their predators

b) limiting factor of the organism

c) adaptation of the organism to the environment

d) countering the problem of food scarcity

Question 7: What is the velocity of a particle moving with uniform speed?

a) must have uniform velocity

b) cannot have uniform velocity

c) may have uniform velocity

d) will have no velocity

Question 8: Drug which helps to reduce anxiety and brings about calmness is

a) tranquiliser

b) diuretic

c) analgesic

d) antihistamine

Question 9: Conglobate gland is a leaf like structure found in

a) Female Cockroach

b) Male Cockroach

c) Male Ascaris

d) Female Ascaris

Question 10: The colour of cow’s milk is slightly yellowish due to the presence of

a) riboflavin

b) carotene

c) ribulose

d) xanthophyll

Question 11: Soil formed by leaching and oxidation is

a) Black soil

b) Laterite soil

c) Red soil

d) Montane soil

Question 12: When Copper oxide or Cobalt Oxide are added to the melt glass then which colored glass is produced?

a) Brown

b) Green

c) Red

d) Violet

e) Blue

Question 13: If the colloidal particles can be seen when a beam of light is passed through the colloidal solution then it is called?

a) Tyndall effect

b) True solution

c) Inductive effect

d) Mesomeric effect

Question 14: What is the common name of dinitrogen oxide?

a) Lime

b) Laughing gas

c) Lye

d) Oil of Vitriol

Question 15: An element has an atomic number of 15. With which of the following elements will it show similar chemical properties?

a) $Be(4)$

b) $N(7)$

c) $Ne(10)$

d) $O(8)$