Most Important 150 General Science MCQ for SSC CGL 2017
In this article we are sharing Most Important 150 General Science MCQ for SSC CGL 2017 and Competitive Exam; Like Railway, Insurance, Banking & Others. Share & Subscribe if you like the post.
- The temperature at which all substances have zero thermal energy - 273 degree celcious.
- Any substance which when added to a reaction, alters the rate of the reaction but remains chemically unchanged at the end of the process is called - Catalyst.
- The study of the inter-relations of animals and plants with their environment is called-Ecology.
- Study of insects is called-Entomology.
- A unit used to express the focal power of optical lenses-Dioptre.
- The velocity that a body with less mass must achieve in order to escape from the gravitational attraction of a more massive body is called-Escape Velocity.
- Laughing gas is chemically known as- Nitrous Oxide.
- The blood vessels carrying blood from the heart to various parts of the body is called-Artery.
- The distance travelled by light in one year is called - Light year.
- An organism which derives its nourishment from another living organism is called-Parasite.
- Newton's which law states that the rate of change of momentum of a body is directly proportional to the force applied and takes place in the direction in which the force act -Newton's second law of motion.
- Which is the world's first man-made satellite-Sputnik-I.(4 oct 1957)
- Which planet is the brightest of all the planets-Venus.
- Small pieces of solid matter which are found scattered in the inter-planetary space of the solar system are known as-Meteoroids.
- The largest gland in the body which is dark red in colour is- Liver.
- Inadequate secretion of Insulin hormone causes which disease -Diabetes.
- Common cold, Influenza, Chickenpox and Measles are caused due to the attack of Virus or Bacteria - Virus.
- In which atmospheric layer are the communication satellite located- Ionosphere.
- The scientific principle behind 'Fibre Optics' is – Total internal reflection of light.
- Ginger is a stem and not a root, True or False - True (because it has nodes and Internodes).
- When we wind a watch which energy is stored - Potential Energy.
- On which phenomena the process of Dialysis used on patient with affected kidneys is Based - Osmosis.
- When a piece of ice floating in a beaker of water melts, the level of water will rise or fall-Remains the same.
- Energy stored in a dry cell is - Chemical energy.
- When a cricketer lowers his hand while catching the ball, it saves him from injury due to - Conservation of momentum.
- Full form of AIDS is - Acquired Immune Deficiency Syndrome.
- Chemical technology dealing with the conversion of base metals into gold is - Alchemy.
- Subtances produced by micro-organism that kill or prevent growth of other micro-organism is called - Antibiotics.
- Substances which react with acids to form salts is called - Base.
- The ancient oriental art of growing trees in dwarf form is called - Bonsai.
- What is the unit of heat - Calorie.
- The ability of a body to resist tension or compression and to recover its original shape and size when the stress is removed is called - Elasticity.
- The negatively charged particles which revolve around the nucleus of the atom in certain orbits is called - Electron.
- The branch of biology dealing with study of Heredity is - Genetics.
- Kwashiorkor is caused due to the deficiency of - Protein.
- The branch of science which deals with study of nature and properties of light is called- Optics.
- The scale used to measure the magnitudes of earthquakes is called - Richter scale.
- The heat required to raise the temperature of 1 kg of a substance through one degree celcius is called - Specific heat.
- The speed greater than the speed of sound is called- Supersonic speed.
- Volatile substance that incapacitates for a time by powerfully irritating the eyes, provoking tears is called - Tear gas.
- Who is the inventor of Dynamite - Alfred B. Nobel.
- Who discovered life in plants - Jagadish Chandra Bose.
- The unit used to measure loudness of sound is - Decibel.
- The smallest part of an element that can take part in a chemical reaction is called - Atom.
- Substances used for destroying or stopping growth of micro-organisms in living tissue is Called -Antiseptic.
- Water that does not form lather with soap easily is called - Hard water.
- The lines drawn on maps joining the places having same barometric pressure is called -Isobars.
- Lymph differs from blood in not having - Red Blood Corpuscles.
- Universal receivers can receive blood from - Groups O, A, B and AB
- Study of Grass is called - Agrostology.
- Study of Tumor is called - Oncology.
- Which physical property will be unaffected with increase in quantity - Density.
- Oil spreads over the surface of water because - Oil has less surface tension than water.
- In high mountaneous regions bleeding through nose occurs because - The pressure of the blood in the capillaries is higher than the outside air pressure.
- Why does a man weigh more at the poles than at the equator - Gravitational pull is more at the poles.
- A gas will behave as an ideal gas at - At very low pressure and high temperature.
- Oology is the branch of science dealing with the study of -Birds egg.
- Why does a drop of liquid assume a spherical shape - Because a sphere has the least surface tension
- When cream is separated from milk the density of milk increases or decreases-Increases
- Diamond is harder than Graphite due to difference of - Crystalline structure.
- Which combination of colours is the most convenient during day and night time-- Red and Green
- An element which does not react with oxygen is - Helium
- An instrument that measures and records the relative humidity of air is - Hygrometer
- The different colours of different stars are due to the variation of- Temperature
- Which is left when an hydrogen atom loses its electron - A proton
- The fundamental scientific principle in the operation of a battery is - Oxidation-reduction
- Which metal is used to galvanise iron - Zinc
- The instrument used to measure the force and velocity of the wind is- Anemometer
- Edward Jenner is associated with - Small Pox
- The scientist who explained about blood circulation for the first time was - William Harvey
- Nitroglycerine is used as - An explosive
- Solar Energy is due to the process of - Fusion reactions
- In a dry cell battery which are used as electrolytes - Ammonium Chloride and Zinc Chloride
- Permanent Research Station of India, Dakshin Gangotri is located at - Antarctica
- Which types of waves are used in a night vision apparatus - Infrared waves
- In order to stay over the same spot on the earth, a geostationary satellite has to be directly Above - The Equator
- Water is used to cool the engines of cars, buses, trucks, etc. It is because water has-High specific heat
- Due to contract of eyeball, a long-sighted eye can only see farther objects which is corrected by using - Convex lens
- Rainwater collected after 30 to 40 minutes of raining is not suitable for drinking because it is - Acidic
- The refining of petroleum is done by the process of - Fractional Distillation Physical quantities which are completely described by a magnitude (size) alone are known as - Scalar quantities
- Study of the abundance and reactions of chemical elements and molecules in the universe, and their interaction with radiation is called - Astrochemistry
- Birbal Sahni Institute of Palaeobotany is located at - Lucknow, Uttar Pradesh
- Organelles which is known as the power house of the cells - Mitochondria
- Photosynthesis takes place maximum in red colour and minimum in - Violet colour
- Other name of White Blood Cells is - Leukocytes
- Other name of Red Blood Cells is - Erythrocytes
- Which antiseptic compound is present in Dettol – Chloroxylenol
- What is a compound that is a white solid which absorbs water vapour from the air – Calcium chloride
- To which product of equivalent weight and valency of an element is equal – Atomic weight
- Which element forms the highest number of compounds in the periodic table – Silicon
- How does addition of ethylene dibromide help to petrol – Elimination of lead oxide
- What do we call the process of separation of pure water from impurities – Distillation
- What is the name of gas which is present in both the natural gas and the biogas – Methane
- Of which alloy the commonly used safety fuse-wire is made – Alloy of Tin and Lead
- What is alcohol obtained in the saponification process – Glycerol
- Which is used to dilute oxygen in the gas cylinders used by divers – Helium
- What do cathode rays case when obstructed by metal –emission of X-rays
- With which liqued is anomalous expansion associated – Water
- What is a tick paste of cement, sand and water called – Mortar
- Ethanol containing 5% water By which name is it known – Rectified spirit
- Of which Container radioactive materials should be kept – Pb
- Which is not an anesthetic agent in surgical operations – Acetone
- What is the percentage of Nitrogen, present in ammonium sulphate – 21%
- Which is the nuclear particle having no mass and no charge, but only spin – Neutrino
- The pH of fresh milk is 6. When it turns sour, what will be the pH – Less than 6
- How must have metals used to make wires for safety fuses– Low resistivity and low melting point
- Sodium stearate is a salt and how is it used – To make soap
- Which are the two main constituents of granite– Iron and silica
- Which method of water purification does not kill microorganism – Filtration
- Which gase is supporter of combustion – Oxygen
- By which was the presence of Cobalt. in Vitamin B-12 established for the first time – Borax-Bead test
- Which metal can deposit copper from copper sulphate solution – Iron
- Which group of gases contribute to the "Green House effect" – Carbon dioxide and Methane
- On heating, Gypsum loses certain percentage of its water content and what does it become – Plaster of Paris
- A liquid initially contracts when cooled down to 4 degree Celsius but on further cooling down to zero degree Celsius, it expands. What is the name of liquid – Water
- Under which category Magnetic, electrostatic and gravitational forces come – Non-contact forces
- No matter how far you stand from a mirror, your image appears erect, How is the mirror likely to be – Either plane or convex
- Due to which Phenomenon are advanced sunrise and delayed sunset found in the sky – Refraction of sunlight
- Due to which Phenomenon is the formation of colours in soap bubbles – Interference of light
- On which principle a pressure cooker works – Elevation of boiling point of water by application of pressure
- Why does pressure of a gas increases due to increase of its temperature– Kinetic energies of die gas molecules are higher
- By which Newton’s may the weight of an object be assigned– Laws of gravitation
- With which field is a current carrying conductor associated – A magnetic field
- On which the linear expansion of a solid rod is independent – On its time of heat flow
- Which doesn't have any effect on velocity of sound – Pressure
- Why does white light into its components – Due to dispersion
- What type of lenses are used in movie projectors – Convex
- During which radioactivity radiation is not emitted – Cathode rays
- An object is undergoing a non-accelerated motion. What is Its rate of change in momentum – Zero
- A particle is moving freely. Then its– kinetic energy is always greater than zero
- If an object undergoes a uniform circular motion, then What will be– Its velocity changes
- In how many hours does geostationary satellite complete its one revolution around the earth – 24 hours
- MCB, which cuts off the electricity supply in case of short-circuiting, on which effect does it work – Magnetic effect of current
- A motor vehicle is moving in a circle with a uniform speed. Where will be the net acceleration of the vehicle – towards the centre of circle
- Which property of a proton may change while it moves freely in a magnetic field – Velocity
- During sunrise and sunset, why does sun appears reddish-orange – Reddish-orange light is least scattered by the atmosphere
- Why are ball bearings used in bicycles, cars, etc – The effective area of contact between the wheel and axle is reduced
- By which Signal a television channel is characterised – Frequency of transmitted signal
- What is a good conductor while carrying current – Electrically neutral
- What is the device used for measuring the wavelength of X-rays – Bragg Spectrometer
- Which is responsible for the working of Newton's colour disc experiment – Persistence of vision
- Who is the founder, of quantum theory of radiation – Plank
- What is Photon – The fundamental unit/quantum of Light
- When does a liquid disturbed by stirring come to rest – Due to Viscosity
- Who is the inventor of Dynamite - Alfred B. Nobel.
- Who discovered life in plants - Jagadish Chandra Bose.
- The unit used to measure loudness of sound is - Decibel.
- The smallest part of an element that can take part in a chemical reaction is called - Atom.
- Which is left when an hydrogen atom loses its electron - A proton
- Which metal is used to galvanise iron - Zinc
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