Rrb Ntpc General Science Pdf in English :
Hello Readers , RRB conduct many exams in every year.Rrb Ntpc General Science Pdf in English. In the Every Exam of RRB , General Awareness Questions Are asked. So, if you are preparing for RRB Exam , you should have Knowledge of General Awareness. In this post we collected the Previous Years Science GK Questions asked in RRB Exams.
Science GK Previous Years Questions of RRB Exams :
1. Which of the following devices helps to maintain a potential difference across a conductor ?
A. A cell or battery
B. Ammeter
C. Voltmeter
D. Galvanometer
2. Which of the following is not a voluntary action ?
A. Taking an object
B. Beating of heart
C. Closing a fist
D. Moving a chair
3. Which of the following allotropes of Carbon is used as a reducing agent in metallurgy ?
A. Graphite
B. Charcoal
C. Coke
D. Carbon Black
4. Which one of the following elements has the lowest atomic mass ?
A. Nitrogen
B. Hydrogen
C. Lithium
D. Helium
5. The SI unit of electric charge is :
A. Volt
B. Ampere
C. Coulomb
D. Ohm
6. Ammonium Nitrate, on thermal decomposition , produces :
A. N2 and H2O
B. N2O and H2O
C. NH2 and NO
D. NH3 and NO2
7. Which of the following is a Non-Luminous body ?
A. Firefly
B. Moon
C. Burning candle
D. Glowing bulb
8. Name of type of mirror used in the headlight of vehicles ?
A. Plane Mirror
B. Plano-convex mirror
C. Convex mirror
D. Concave mirror
9. Which of the following is an unsaturated hydrocarbon ?
A. Butane
B. Pentane
C. Ethylene
D. Propane
10. Which of the following causes damage to bridges, iron railings and all objects made of metals ?
A. Rancidity
B. Acidity
C. Reduction
D. Corrosion
11. Which one is not a good conductor of electricity ?
A. Porcelain
B. Aluminium
C. Tungsten
D. Nickel
12. Which one of the following is not alkaline ?
A. Sodium
B. Potassium
C. Lithium
D. Sulphur
13. Gunpowder mainly contains :
A. Calcium sulphate
B. Potassium nitrate
C. Lead sulfide
D. Zinc sulfide
14. Stainless steel is :
A. A compound
B. A mixture
C. An element
D. An alloy
15. What is the common name of the solution of calcium hydroxide ?
A. Lime water
B. Diet soda
C. Salt solution
D. Vinegar
16. When milk becomes sour, ________ is produce ?
A. Lactose
B. Lactic acid
C. Salicylic acid
D. Linoleic acid
17. What happens as we go down the group in the periodic table ?
A. The number of shells decreases
B. Valence electrons decreases
C. The number of shells increases
D. Atomic size decreses
18. The boiling point of Alcohol is 78degree C . What is the temperature in Kelvin Scale ?
A. 78 K
B. 314 K
C. 373 K
D. 351 K
19. The unit of power used in industry is :
A. Kilowatts
B. Joule
C. Watts
D. Horse Power
20. Two or more elements combine to form a :
A. Valency
B. Radical
C. Atom
D. compound
21. The number of neutrons in an atom is equal to the :
A. Mass number
B. Mass number -atomic number
C. Atomic number
D. Number of electrons
22. The reflector of search light is a :
A. Convex mirror
B. Concave mirror
C. Cylindrical mirror
D. Plane mirror
23. Name the metal that can be easily cut with a knife :
A. Sodium
B. Copper
C. Gold
D. Aluminium
24. The SI unit of resistance is :
A. Coulomb
B. Ohm
C. Joule
D. Newton
25. In a Plant , which of the following is converted into seed ?
A. Stigma
B. Ovary
C. Style
D. Ovule
26. The reproduction parts of a flower are :
A. Stamen and carples
B. Calyx and carpels
C. Calyx and corolla
D. Corolla and stamens
27. Which of the following element is lustrous in nature ?
A. Carbon
B. Iodine
C. Sulphur
D. Nitrogen
28. The blackboard seems black because it :
A. Reflects every body
B. Does not reflect any colour
C. Absorb black colour
D. Reflects black colour
29. Which of the following alloys contains Tin :
A. Brass
B. Solder
C. Duralumin
D. Steel
30. The colour in water is determined using instrument called :
A. Spectrophotometer
B. Photometer
C. Tintometer
D. Atomic absorption spectrophotometer
31. Which of the following is used in making smoke bombs ?
A. Sulphur
B. Phosphorous
C. Hydrogen
D. Carbon
32. Silver halides are used in photographic plates because they are :
A. Oxidised in air
B. Soluble in hyposolution
C. Reduced by light
D. Totally colourless
33. Electron microscope was invented by :
A. Knoll and Ruska
B. Robert Koch
C. Leeuwenhoek
D. C.P.Swanson
34. Electrostatic precipitator is used to control the pollution of :
A. Air
B. Water
C. Noise
D. Thermal
35. Dehydration in human body is caused due to the loss of :
A. Vitamins
B. Salts
C. Hormones
D. Water
36. In the eye colour vision is affected by the presence of :
A. Choroid coat
B. Sclerotic coat
C. Rods
D. Cones
37. Metals are placed on which side of the Modern Periodic Table ?
A. Top row
B. Right side
C. Bottom row
D. Left side
38. Elements that lie in the same column have :
A. Similar properties
B. Different properties
C. Same physical properties
D. Different chemical properties
39. Which one of the following is used for determining the structure of the crystal :
A. Gamma rays
B. X rays
C. UV rays
D. Visible light
40. Contact lenses are made from :
A. PVC
B. Polystrene
C. Lucite
D. Telfon
41. Meson was discovered by :
A. Anderson
B. Seaburg
C. Powell
D. Yukawa
42. Plants growing on the sand are called as :
A. Chasmophytes
B. Oxylophytes
C. Lithophytes
D. Psammophytes
43. Which of the following main elements is used in making matchbox ?
A. Graphite
B. Phosphorous
C. Silicon
D. Sodium
44. Who invented the Centigrade scale ?
A. Anders Celsius
B. Daniel Gabriel Fahrenhiet
C. Wiliam Thomson
D. Wright Brothers
45. Objects float on water based on :
A. Newton’s Third law of motion
B. Hook’s law
C. Faraday’s law
D. Archimedes Principle
Attempt Quiz :
A. Knoll and Ruska
B. Robert Koch
C. Leeuwenhoek
D. C.P. Swanson
... Answer is A)
Knoll and Ruska
2. The colour in water is determined using instrument called :
A. Spectrophotometer
B. Photometer
C. Tintometer
D. None of these
... Answer is C)
Tintometer
3. The reflector of search light is a :
A. Convex Mirror
B. Concave Mirror
C. Cylindrical Mirror
D. Plane Mirror
... Answer is B)
Concave Mirror
4. Which of the following element is lustrous in nature ?
A. Carbon
B. Nitrogen
C. Sulphur
D. Iodine
... Answer is D)
Iodine
5. The blackboard seems black because it ?
A. Reflects every body
B. Does not reflect any colour
C. Absorb Black colour
D. Reflects black colour;
... Answer is B)
Does not reflect any colour
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