Top-100 Expected RRB NTPC General Science Questions Set-2 PDF
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Question 1: The normal temperature of human being on Kelvin scale is-
a) 290
b) 310
c) 300
d) 305
Question 2: In which of the following animal while walking, the fore and hind limbs of one side move together ?
a) Giraffe
b) Nilgai
c) Deer
d) Camel
Question 3: Vitamin ‘A’ is necessary in our body for
a) Prevention of blood clotting
b) Haemoglobin synthesis
c) Proper vision
d) Improving digestion
Question 4: Evolutionary principles have been used for classification of animals and plants According to this humans come under which class ?
a) Mammalia
b) Arthropoda
c) Aves
d) Amphibian
Question 5: Which of the following medicines is used in the treatment of typhoid ?
a) Sulfa drugs
b) Vitamin A
c) Chloroquin
d) Chloromycetin
Question 6: For photosynthesis, energy is obtained from
a) Sunlight
b) Water
c) Chlorophyll
d) Vitamin
Question 7: Which of the following helps in the blood clotting?
a) Vitamin A
b) Vitamin D
c) Vitamin K
d) Follic Acid
Question 8: What is the effect of alcohol in the human body ?
a) It increases its sensitivity
b) It decreases its sensitivity
c) It does not affect human body
d) It increases human activity
Question 9: Bees and houseflies are related to the group
a) Insect
b) Worm
c) Animal
d) None of these
Question 10: In human body the ratio of red blood corpuscles and white blood corpuscles is
a) 300 : 1
b) 4000 : 1
c) 500 : 1
d) 600 : 1
Question 11: One of the digestive juices that lacks enzymes but aids digestion is
a) Bile
b) Succus Entericus
c) Chyme
d) Chyle
Question 12: A person will have black, brown or blue eyes depending upon the pigment present in the :
a) Pupil
b) Iris
c) Cornea
d) Choroid
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Question 13: Deficiency of vitamin ……………. is the main cause for ‘Beri-Beri Disease’
a) Vitamin A
b) Vitamin C
c) Vitamin B
d) Vitamin K
Question 14: ‘Soyabean’ contains a high level of
a) Proteins
b) Vitamins
c) Carbohydrates
d) None of these
Question 15: The Human body contains how much percentage of water?
a) 75%
b) 80%
c) 45%
d) 90%
Question 16: The phenomenon of summer sleep by animals is called :
a) Hibernation
b) Aestivation
c) sa1vation
d) None of the above
Question 17: The Characteristic feature of Virus is :
a) It multiplies only on dead animals
b) It multiplies only on hosts
c) It lacks Chlorophyll
d) It is made up of fats
Question 18: An Ant can see the objects all around it due to the presence of
a) Simple eyes
b) Eyes over its head
c) Well developed eyes
d) Compound eyes
Question 19: The frequency of sound waves can be expressed in :
a) Second
b) Cycle
c) Cycle per second
d) Metre per second
Question 20: Substances which dissolve in moisture when exposed to it are called :
a) Hygroscopic
b) Efflorescent
c) Deliquescent
d) Fluorescent
Question 21: Clay shows plasticity when :
a) Right amount of water is added to it
b) It is strongly heated
c) It is dried at room temperature after kneading
d) None of the above
Question 22: The shape of our Galaxy Milky way is
a) Elliptical
b) Circular
c) Spiral
d) None of the above
Question 23: Which organ of the body is affected by Leukemia ?
a) Heart
b) Kidney
c) Lungs
d) Skin
Question 24: What type of the star is the SUN ?
a) Gaint
b) Supergiant
c) Dwarf
d) None of the above
Question 25: Which fins do NOT help fish in balancing in water ?
a) Dorsal
b) Pelvic
c) Anal
d) Tail
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Question 26: Tendon connects :
a) Bone to bone
b) Muscles to bone
c) Muscles to uscles
d) Nerve to muscles
Question 27: The longest cell in human body is :
a) Skeletal cells
b) RBC
c) Nerve cells
d) WBC
Question 28: Group of cells having a common origin and performing similar functions are called :
a) Tissues
b) Organs
c) Organ systems
d) None of the above
Question 29: Which pair is NOT correctly matched ?
a) Pisciculture – Fish
b) Sericulture – Earthworms
c) Green Revolution – Agriculture
d) White Revolution – Milk
Question 30: The mamal which lays eggs is :
a) Bat
b) Squirrel
c) Kangaroo
d) Duckbilled Platypus
Question 31: The combination of which of the following soils is best for plant growth:
a) Clay, sand and gravel
b) Humus, day and gravel
c) Sand, humus and gravel
d) Humus, sand and clay
Question 32: Which of the following trees were promoted for building ships or railways?
a) Firs and Pines
b) Bushes and Creepers
c) Teak and Sal
d) Shisham and Acacia
Question 33: The main occupation of Palaeolithic (91d Stone Age) people was :
a) Animal Husbandry
b) Hunting
c) Agriculture
d) Fishing
Question 34: Man belongs to which of the following groups
a) Homo Sapiens
b) Rana tigrina
c) Felts domestics
d) Canis Familans
Question 35: Bone deformities occur due to the excessive intake of :
a) Phosphorus
b) Potassium
c) Fatty acid
d) Fluorine
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Question 36: The mirror used by ENT specialist is :
a) Plane mirror
b) Concave mirror
c) Convex mirror
d) None of these
Question 37: Which of the following causes polio-myelitis ?
a) Dengue Virus
b) Entero Virus
c) Mumps Virus
d) Rhabdo Virus
Question 38: The number of pairs of spinal nerves in man are
a) 30
b) 31
c) 33
d) 32
Question 39: Chemically fats and oils are :
a) Triglycerides
b) Amines
c) Aldehydes
d) Ketons
Question 40: Which protein occurs abundantly in Egg ?
a) Keratin
b) Albumin
c) Collagen
d) Haemogfobin
Question 41: The magnitude of a vector is never
a) Zero
b) Unity
c) Negative
d) Positive
Question 42: Light year is the
a) Distance travelled by light in one year
b) Mean distance between the Earth and the Sun
c) Mean distance between the Earth and the Moon
d) Mean distance between the Sun and any planet
Question 43: ‘Bar’ is the unit of
a) Heat
b) Temperature
c) Current
d) Atmospheric Pressure
Question 44: Who discovered the fact that _____”An electric current produces a circular magnetic field as it flows through a wire” ?
a) Oersted
b) Faraday
c) Fleming
d) Coulomb
Question 45: The cathode rays are
a) Streams of electrons
b) Streams of positively charged particles
c) Streams of neutral particles
d) Electromagnetic Waves
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Question 46: A freely suspended bar magnet always remains in the direction
a) North – South
b) East – West
c) South – West
d) Not – certain
Question 47: The SI unit of the specific resistance is
a) Ohm/metre
b) Ohm/$metre^{2}$
c) Ohm – metre
d) Ohm
Question 48: Newton/kg is a unit of
a) Acceleration
b) Force
c) Efficiency
d) Energy
Question 49: A sudden fall in the Barometric reading indicates ?
a) Rain
b) Storm
c) Hot Weather
d) Extreme Cold
Question 50: “Parsec” is the unit of measurement of?
a) Density of stars
b) Astronomical distance
c) Brightness bf Heavenly Bodies
d) Orbital Velocity of Giant Stars
Question 51: A body is droppef from a certain height above the ground. When it is half way down, it possess.
a) Only Kinetic energy
b) Only Potential energy
c) Both Kinetic and Potential energy
d) Neither kinetic nor Potential energy
Question 52: It is six months long day in the Nothern Polar region and six months long night in the South Polar region because
a) Revolution of the Earth
b) Earth is inclined towards its orbital plane
c) Rotation of the Earth
d) None of the above
Question 53: If the mass of a body is ‘m’ on the surface of the earth, its mass on the surface of the moon will be :
a) m/6
b) m+ 6
c) m
d) 6m
Question 54: On applying a constant force to a body, it moves with uniform_:
a) Momentum
b) Speed
c) Velocity
d) Acceleration
Question 55: A body at rest can have :
a) Speed
b) Velocity
c) Momentum
d) Energy
Question 56: On applying a constant force to a body, it moves with uniform_:
a) Momentum
b) Speed
c) Velocity
d) Acceleration
Question 57: The persistence of sound in an auditorium is due to :
a) Single reflection of sound
b) Repeated reflections of sound
c) Repeated refraction of sound
d) Vibration of objects placed in the auditorium
Question 58: ‘Triton’ is the largest moon of which planet ?
a) Saturn
b) Neptune
c) Jupiter
d) Uranus
Question 59: The instrument used for finding out wind direction is:
a) Hygrometer
b) Anemometer
c) Wind gauze
d) Wind vane
Question 60: Friction can be reduced by changing from
a) Rolling to sliding
b) Sliding to rolling
c) Potential energy to kinetic energy
d) Dynamic to static
Question 61: Escape velocity of a rocket fired from the earth towards the moon is a velocity to get rid of the:
a) Earth’s gravitational pull
b) Moon’s gravitational pull
c) Centripetal force due to the earth’s rotation
d) Atmospheric pressure
Question 62: The SI unit of Force· is
a) Joule
b) Newton
c) Dyne
d) None of the above
Question 63: Free surface of a liquid behaves like a sheet and tends to contract to the smallest possible area due to the:
a) Force of adhesion
b) Force of friction
c) Centrifugal force
d) Force of cohesion
Question 64: Which of the following non-alcoholic beverages is known as the ‘Queen Beverages’
a) Coffee
b) Tea
c) Cocoa
d) Cola
Question 65: What is the general direction of cyclones formed in the Bay of Bengal ?
a) East to West
b) West to East
c) West to South
d) North to South
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Question 66: Which compound (given below) is not a peroxide ?
a) $Na_{2}O_{2}$
b) $H_{2}O_{2}$
c) $BaO_{2}$
d) $PbO_{2}$
Question 67: Which of the following polutes the air in metrocities ?
a) Copper
b) Lead
c) Chromium
d) Copper oxide
Question 68: The Chemical name of table salt is ?
a) potassium chloride
b) sodium chloride
c) calcium chloride
d) sodium hyposulphate
Question 69: Which of the following gases is used in cigarette lighters ?
a) Butane
b) Methane
c) Propane
d) Radon
Question 70: White phosphorus is stored in
a) Water
b) Sulphuric Acid
c) Alcohol
d) Kerosene
Question 71: Besides hydrogen, which of the following elements is common in organic compounds?
a) Phosphorus
b) Sulphur
c) Nitrogen
d) Carbon
Question 72: Solid Carbon Dioxide is termed as-
a) Soft ice
b) Dry ice
c) White Rice
d) None of these
Question 73: Urea is a
a) Sodium fertilizer
b) Phosphorus fertilizer
c) Potassium fertilizer
d) Nitrogen fertilizer
Question 74: The maximum number of electrons in the second orbit of an element is
a) 8
b) 32
c) 18
d) 2
Question 75: The two elements having unequal number of electrons but same atomic mass are called
a) Isotonic
b) Isoneutronic
c) Isotopes
d) Isobars
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Question 76: The cooling agent in a refrigerator is
a) Oxygen
b) Nitrogen
c) Freon
d) Carbon dioxide
Question 77: The chemical name of washing soda is
a) Sodium Carbonate
b) Sodium Bicarbonate
c) Sodium Chloride
d) Sodium Sulphate
Question 78: The percentage of which gas is maximum in the atmosphere ?
a) Oxygen
b) Carbon dioxide
c) Argon
d) Nitrogen
Question 79: Which of the following pollutes the air of big cities ?
a) Copper
b) Lead
c) Chromium
d) Copper Oxide
Question 80: The substance coated on plastic tape recorder tapes is
a) Zinc Oxide
b) Magnesium Oxide
c) Iron Sulphate
d) Iron Oxide
Question 81: The smallest particle that has all the properties of an element
a) Atom
b) Molecule
c) Compound
d) None of these
Question 82: The main element in the ‘Cattle Bone Powder’ is
a) Calcium
b) Phosphorus
c) Nitrogen
d) None
Question 83: Which gas was involved in Lime Water turning into milky?
a) $O_{2}$
b) $CO_{2}$
c) Sulphur dioxide
d) None
Question 84: A chemical whose pH is less than 7 is considered ________________
a) Arcot
b) Acidic
c) Budikot
d) Devanhalli
Question 85: As compared to pure water, a body in salty water will :
a) Sink more
b) Sink less
c) Remain same
d) Depends on the Way the body is reed
Question 86: A mixture of sand and salt can be separated by :
a) Sublimation
b) Sieving
c) Dissolving salt in water and then filtration
d) Dissolving salt in water and then distillation
Question 87: The conversion of a solid directly into its vapour is called :
a) Evaporation
b) Condensation
c) Vaporisation
d) Sublimation
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Question 88: The common Alum is :
a) Potassium Alum
b) Sodium Alum
c) Ferro Alum
d) Chrome Alum
Question 89: If the mass of a solid is doubled, its density :
a) becomes two times
b) becomes half
c) remains unchanged
d) becomes four times
Question 90: What is the Freezing point of water?
a) 212° F
b) 100° F
c) 180° F
d) 32° F
Question 91: pH value of milk is :
a) Less than 7
b) More than 7
c) 6.5 to 6.7
d) Equal to 0
Question 92: The pH of pure water is
a) 2
b) 6
c) 7
d) 8
Question 93: Blood pressure is measured with :
a) Thermometer
b) Barometer
c) Sphygmomanometer
d) Lactometer
Question 94: The neutron was discovered by :
a) Chadwick
b) Rutherford
c) Ferlni
d) Bohr
Question 95: What is the average temperature of surface water of the oceans ?
a) 22° Celsius
b) 17.20 Celsius
c) 26.7o Celsius
d) 19.4o Celsius
Question 96: Blood clotting will not occur in the absence of :
a) Iron
b) Calcium
c) Phosphorus
d) None of the above
Question 97: Blood clotting will not occur in the absence of :
a) Iron
b) Calcium
c) Phosphorus
d) None of the above
Question 98: What happens when water is condensed into ice?
a) Heat is absorbed
b) Heat is released
c) Quantity of heat remains unchanged
d) None of these
Question 99: Which temperature in celsius scale is equal to 300 k?
a) 30°c
b) 27°c
c) 300°c
d) None of these
Question 100: The metal extracted from Bauxite is-
a) Silver
b) Copper
c) Manganese
d) Aluminium
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Answers & Solutions:
1) Answer (B)
The temperature of the human body is 37 degrees Celcius which is equal to 37 + 273 = 310 K
2) Answer (D)
3) Answer (C)
4) Answer (A)
5) Answer (D)
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