Sainik School Class 9 General Science MCQ | Set 3
AISSEE Sainik School Class 9 Admission test General Science MCQ Question and Answer Set 3 available here. Students who have solved Set 1 General Science MCQ & Set 2 General Science MCQ should follow this page. In this page we have included MCQs on: Changes during Puberty, Conservation of plants and animals, How to find calorific value of fuel?, Reaching the age of Adolescence, Reflection and Dispersion of Light, Biosphere Reserves, National Parks and Sanctuaries, Chemical Effects of Electric Current, Cropping Seasons, Electroplating and Artificial Jewellery & Some Natural Phenomenon.
Changes during Puberty
(1) The larynx begins to grown at ____?
(a) Adolescence
(b) Puberty
Ans:- (b) Puberty
(2) During ____ the secretion of sweat glands increases?
(a) Puberty
(b) Adolescence
Ans:- (a) Puberty
(3) Boys begin to grow facial hair at ____?
(a) Puberty
(b) Adolescence
Ans:- (a) Puberty
(4) During ____ period, the reproductive systems of boys and girls mature?
(a) Adolescence
(b) Puberty
Ans:- (b) Puberty
(5) During ____ period, the menstruation cycle starts?
(a) Adolescence
(b) Puberty
Ans:- (b) Puberty
(6) During _____ period, voice changes?
(a) Adolescence
(b) Puberty
Ans:- (b) Puberty
(7) An increase in height occurs during _____ period?
(a) Puberty
(b) Adolescence
Ans:- (a) Puberty
(8) Puberty happens for girls around _____ years?
(a) 10-11
(b) 11-12
Ans:- (a) 10-11
(9) Puberty happens for boys around _____ years?
(a) 10-11
(b) 11-12
Ans:- (b) 11-12
(10) At _____, children get taller, heavier and stronger?
(a) Puberty
(b) Adolescence
Ans:- (a) Puberty
(11) At _____, the voice-box begins to grow?
(a) Adolescence
(b) Puberty
Ans:- (b) Puberty
(12) At _____, pubic hair begins to grow?
(a) Adolescence
(b) Puberty
Ans:- (b) Puberty
Conservation of plants and animals
(1) If _____ continues, rainfall and the fertility of the soil will decrease.
(a) Deforestation
(b) Desertification
Ans:- (a) Deforestation
(2) Increase of _____ in the atmosphere will lead to global warming.
(a) Oxygen
(b) Carbon dioxide
Ans:- (b) Carbon dioxide
(3) _____is a major cause which leads to the change in soil properties.
(a) Deforestation
(b) Desertification
Ans:- (a) Deforestation
(4) _____ leads to a decrease in the water holding capacity of the soil.
(a) Deforestation
(b) Desertification
Ans:– (a) Deforestation
(5) The area where animals are protected from any disturbance to them and their habitat is called _____.
(a) Biosphere Reserve
(b) Wildlife Sanctuary
(c) National Parks
Ans:- (b) Wildlife Sanctuary
(6) The area reserved for wildlife where they can freely use the habitats and natural resources, is called _____.
(a) National Parks
(b) Biosphere Reserve
(c) Wildlife Sanctuary
Ans:- (a) National Park
(7) The large area of protected land for conservation of wildlife, plant and animal resources, is called ______.
(a) National Parks
(b) Biosphere Reserve
(c) Wildlife Sanctuary
Ans:- (b) Biosphere Reserve
(8) _____ helps to maintain the biodiversity and culture of that area.
(a) Biosphere Reserve
(b) Wildlife Sanctuary
(c) National Parks
Ans:- (a) Biosphere Reserve
(9) Animals whose numbers are diminishing to a level that they might face extinction are known as the _____.
(a) Endangered animals
(b) Endemic animals
Ans:- (a) Endangered animals
(10) _____ is the source book which keeps a record of all the endangered animals and plants.
(a) Black Data Book
(b) Red Data Book
Ans:- (b) Red Data Book
How to find calorific value of fuel?
(1) Calorific value of hydrogen = _____ kJ/kg?
(a) 45000
(b) 55000
(c) 150000
Ans:- (c) 150000
(2) Calorific value of LPG = ______ kJ/kg?
(a) 45000
(b) 55000
(c) 150000
Ans:- (b) 55000
(3) The calorific value of fuel is the amount of _____ produced by the complete combustion of 1 kg of fuel.
(a) Heat
(b) Smoke
Ans:- (a) Heat
(4) Calorific value of coal = ______ kJ/kg?
(a) 55000
(b) 30000
(c) 150000
Ans:- (b) 30000
(5) Calorific value of diesel = ______ kJ/kg?
(a) 55000
(b) 45000
(c) 150000
Ans:- (b) 45000
(6) Calorific value of petrol = ______ kJ/kg?
(a) 55000
(b) 30000
(c) 45000
Ans:- (c) 45000
(7) Calorific value of CNG = ______ kJ/kg?
(a) 55000
(b) 30000
(c) 50000
Ans:- (c) 50000
(8) Calorific value of kerosene = ______ kJ/kg?
(a) 48000
(b) 50000
(c) 45000
Ans:- (a) 48000
(9) Calorific value of natural gas = ______ kJ/kg?
(a) 55000
(b) 30000
(c) 50000
Ans:- (c) 50000
(10) Calorific value of methane = ______ kJ/kg?
(a) 50000
(b) 30000
(c) 55000
Ans:- (a) 50000
Reaching the age of Adolescence
(1) The period between ____ years of age in an individual’s life is called adolescence?
(a) 9-15
(b) 10-19
Ans:- (b) 10-19
(2) During ____ period, the secretion of sweat glands and sebaceous glands increases?
(a) Adolescence
(b) Puberty
Ans:- (a) Adolescence
(3) During ____ period, the voice box begins to grow?
(a) Adolescence
(b) Puberty
Ans:- (a) Adolescence
(4) Hair grows in the pubic region and the armpits in the ____ period?
(a) Adolescence
(b) Adulthood
Ans:- (a) Adolescence
(5) Growth of sex organs gains momentum in the period of ____?
(a) Adolescence
(b) Adulthood
Ans:- (a) Adolescence
(6) In girls, breast develops in the period of ____?
(a) Adolescence
(b) Adulthood
Ans:- (a) Adolescence
(7) During _____, young people develop a clearer sense of personal and sexual identity?
(a) Adolescence
(b) Puberty
Ans:- (a) Adolescence
Reflection and Dispersion of Light
(1) The ray that comes back from the surface after reflection is known as ____?
(a) Reflected ray
(b) Incident ray
Ans:- (a) Reflected ray
(2) The angle between the normal and the reflected ray is called ____?
(a) Angle of reflection
(b) Angle of incidence
Ans:- (a) Angle of reflection
(3) The angle of incidence is always ____ the angle of reflection?
(a) Less than
(b) Greater than
(c) Equal to
Ans:- (c) Equal to
(4) The incident ray, the normal at the point of incidence and the reflected ray all lie in the ____ plane?
(a) Different
(b) Same
Ans:- (b) Same
(5) Images are formed by ____ reflection?
(a) Diffused
(b) Regular
Ans:- (b) Regular
(6) ____ is a natural phenomenon showing dispersion?
(a) Lightning
(b) Rainbow
Ans:- (b) Rainbow
(7) Splitting of white light into its constituent colors is known as ____?
(a) Lateral inversion
(b) Dispersion
Ans:- (b) Dispersion
(8) ____mirror is a mirror in which the reflecting surface is curved inwards.
(a) Convex
(b) Concave
Ans:- (b) Concave
(9) Convex mirror is a mirror in which the reflecting surface is curved ____.
(a) Inwards
(b) Outwards
Ans:- (b) Outwards
(10) ____ of mirror is the reflecting surface of the mirror.
(a) Aperture
(b) Principal axis
(c) Pole
Ans:- (a) Aperture
(11) ____ of mirror is the midpoint of the reflecting surface of the mirror.
(a) Aperture
(b) Principal axis
(c) Pole
Ans:- (c) Pole
(12) The sole cause of dispersion of light is _____.
(a) Reflection
(b) Refraction
Ans:- (b) Refraction
(13) _____dispersion occurs when there is a change in the propagation velocity of the rays with the wavelength in the optical fiber.
(a) Material dispersion
(b) Modal dispersion
(c) Chromatic dispersion
Ans:- (c) Chromatic dispersion
(14) _____dispersion occurs when light rays in an optical fiber travel in different directions, having additional path lengths.
(a) Material dispersion
(b) Modal dispersion
(c) Chromatic dispersion
Ans:- (b) Modal dispersion
(15) _____dispersion causes white light to split into different colors, depending on the material’s refractive index.
(a) Material dispersion
(b) Modal dispersion
(c) Chromatic dispersion
Ans:- (a) Material dispersion
(16) In Modal dispersion, _____ modes enter the fiber at acute or obtuse angles.
(a) High-order
(b) Low-order
Ans:- (a) High-order
(17) In Modal dispersion, _____ modes enter the fiber directly.
(a) High-order
(b) Low-order
Ans:- (b) Low-order
(18) _____dispersion is important to researchers who design optical equipment.
(a) Material dispersion
(b) Modal dispersion
(c) Chromatic dispersion
Ans:- (c) Chromatic dispersion
Biosphere Reserves, National Parks and Sanctuaries
(1) The area where animals are protected from any disturbance to them and their habitat is called _____?
(a) Biosphere Reserve
(b) Wildlife Sanctuary
Ans:- (b) Wildlife Sanctuary
(2) The area reserved for wildlife where they can freely use the habitats and natural resources, is called _____?
(a) National Parks
(b) Biosphere Reserve
Ans:- (a) National Park
(3) The large area of protected land for conservation of wildlife, plant and animal resources, is called ______?
(a) National Parks
(b) Biosphere Reserve
Ans:- (b) Biosphere Reserve
(4) _____ helps to maintain the biodiversity and culture of that area.
(a) Biosphere Reserve
(b) Wildlife Sanctuary
(c) National Parks
Ans:- (a) Biosphere Reserve
(5) The plants found in a particular area are termed _____ of that area?
(a) Flora
(b) Fauna
Ans:- (a) Flora
(6) The animals found in a particular area are termed _____ of that area?
(a) Flora
(b) Fauna
Ans:- (b) Fauna
(7) ____ is a flora of tropical rain forests?
(a) Bamboo
(b) Sandalwood
Ans:- (a) Bamboo
(8) ____ is a flora of temperate deciduous forests?
(a) Fern
(b) Sal
Ans:- (b) Sal
(9) ____ is a flora of coniferous forests?
(a) Teak
(b) Pine
Ans:- (b) Pine
(10) ____ is a flora of Gir forests?
(a) Banyan
(b) Neem
Ans:- (b) Neem
(11) ____ is a flora of Jim Corbett National park?
(a) Pine
(b) Peepal
Ans:- (a) Pine
(12) ____ is a flora of Jaladpara Sanctuary?
(a) Banyan
(b) Neem
Ans:- (a) Banyan
(13) ____ is the special fauna of Jaladpara Sanctuary?
(a) Rhinoceros
(b) Rabbit
Ans:- (a) Rhinoceros
(14) ____ is the most significant animal of Girforests?
(a) Rabbit
(b) Lion
Ans:- (b) Lion
(15) ____ is the special animal of Jim Corbett National Park?
(a) Tiger
(b) Lion
Ans:- (a) Tiger
(16) Jim Corbett National Park is situated in ____ state?
(a) West Bengal
(b) Gujrat
(c) Uttarakhand
Ans:- (c) Uttarakhand
(17) Jaladpara Sanctuary is situated in ____ state?
(a) West Bengal
(b) Gujrat
(c) Uttarakhand
Ans:- (a) West Bengal
(18) Gir forest is situated in ____ state?
(a) West Bengal
(b) Gujrat
(c) Uttarakhand
Ans:- (b) Gujrat
(19) ____ is a fauna of North East Himalaya?
(a) Beelte
(b) Centipedes
Ans:- (b) Centipedes
(20) ____ is a fauna of Eastern coast of India?
(a) Moths
(b) Robin
Ans:- (a) Moths
(21) ____ is a fauna of coniferous forests?
(a) Wolves
(b) Leopard
Ans:- (a) Wolves
(22) _____ is a flora of the Pachmarhi Biosphere Reserve?
(a) Wolf
(b) Sal
Ans:- (b) Sal
(23) ____ is a fauna of the Pachmarhi Biosphere Reserve?
(a) Barking deer
(b) Teak
Ans:- (a) Barking deer
(24) ____ is the endangered animal of Manas National Park?
(a) Golden langur
(b) Leopard
Ans:- (a) Golden langur
(25) ____ is a special fauna of Manas National Park?
(a) Wolf
(b) Assam roofed turtle
Ans:- (b) Assam roofed turtle
Chemical Effects of Electric Current
(1) ____ are substances which undergo chemical change when electricity is passed through them?
(a) Electrolytes
(b) Electrodes
Ans:- (a) Electrolytes
(2) ____ produce electricity as a result of chemical reaction?
(a) Electrolytes
(b) Electrochemical cells
Ans:- (b) Electrochemical cells
(3) Chemical reactions in which electrical energy is consumed or produced are known as ____ reactions?
(a) Electrochemical
(b) Photochemical
Ans:- (a) Electrochemical
(4) Electroplating is a ____ reaction?
(a) Electrochemical
(b) Photochemical
Ans:- (a) Electrochemical
(5) The process of depositing a layer of any desired metal on another material by means of electricity is called _____?
(a) Electroplating
(b) Electricity generation
Ans:- (a) Electroplating
(6) Distilled water is a _____ conductor of electricity.
(a) Good
(b) Poor
Ans:- (b) Poor
(7) Water of pond is a _____ conductor of electricity.
(a) Good
(b) Poor
Ans:- (a) Good
(8) The passage of an electric current through a conducting liquid causes ______ reactions.
(a) Physical
(b) Chemical
Ans:- (b) Chemical
(9) A coating of ____ is deposited on iron to protect it from corrosion and formation of rust?
(a) Tin
(b) Zinc
Ans:- (b) Zinc
(10) _____, used for storing food, are made by electroplating tin onto iron?
(a) Tin cans
(b) Copper cans
Ans:- (a) Tin cans
(11) Jewellery makers electroplate _____ and _____ on less expensive metals?
(a) Copper and bronze
(b) Silver and gold
Ans:- (b) Silver and gold
(12) _____ plating is done on kitchen gas burners?
(a) Zinc
(b) Chromium
Ans:- (b) Chromium
(13) If you pass current through copper sulphate solution, copper gets deposited on the plate connected to the _____ terminal of the battery.
(a) Negative
(b) Positive
Ans:- (a) Negative
(14) If the passage of an electric current through a conducting solution, the changes of color of this solution may occur due to ______ reaction.
(a) Physical
(b) Chemical
Ans:- (b) Chemical
(15) _____ glows even when a weak electric current flows through it.
(a) LED
(b) Electric bulb
Ans:- (a) LED
(16) A British chemist, ______, had shown that if electrodes were immersed in water, and a current was passed, bubbles of oxygen and hydrogen were produced.
(a) William Ramsay
(b) William Nicholson
Ans:- (b) William Nicholson
Cropping Seasons
(1) Cotton plants are grown in _____ climate?
(a) Warm
(b) Winter
(c) Rainy
Ans:- (a) Warm
(2) Jute plants are grown in _____ season?
(a) Winter
(b) Summer
(c) Rainy
Ans:- (c) Rainy
(3) The crop which are sown in the rainy season are called ____?
(a) Kharif crops
(b) Rabi crops
(c) Zaid crops
Ans:- (a) Kharif crops
(4) The crop which are grown in the winter season are called ____?
(a) Kharif crops
(b) Rabi crops
(c) Zaid crops
Ans:- (b) Rabi crops
(5) Soyabean is a ____ crop?
(a) Rabi crop
(b) Kharif crop
(c) Zaid crop
Ans:- (b) Kharif crop
(6) An example of a Rabi crop is ____?
(a) Paddy
(b) Cotton
(c) Wheat
Ans:- (c) Wheat
(7) The crop which are grown in the summer season are called ____?
(a) Kharif crops
(b) Rabi crops
(c) Zaid crops
Ans:- (c) Zaid crops
(8) ____ is a Zaid crop?
(a) Potato
(b) Bitter gourd
(c) Maize
Ans:- (b) Bitter gourd
(9) Sugarcane is a _____ crop?
(a) Rabi crop
(b) Kharif crop
(c) Zaid crop
Ans:- (b) Kharif crop
(10) _____crops are also known as filler crops?
(a) Kharif crops
(b) Rabi crops
(c) Zaid crops
Ans:- (c) Zaid crops
Electroplating and Artificial Jewellery
(1) The process of depositing a layer of any desired metal on another material by means of electricity is called _____?
(a) Electroplating
(b) Electricity polishing
Ans:- (a) Electroplating
(2) Electroplating is a ____ reaction?
(a) Electrochemical
(b) Photochemical
Ans:- (a) Electrochemical
(3) _____ is widely used in industry of coating metal objects with a thin layer of a different metal?
(a) Electroplating
(b) Electricity polishing
Ans:- (a) Electroplating
(4) A coating of ____ is deposited on iron to protect it from corrosion and formation of rust?
(a) Tin
(b) Zinc
Ans:- (b) Zinc
(5) _____, used for storing food, are made by electroplating tin onto iron?
(a) Tin cans
(b) Copper cans
Ans:- (a) Tin cans
(6) Jewellery makers electroplate _____ and _____ on less expensive metals?
(a) Copper and bronze
(b) Silver and gold
Ans:- (b) Silver and gold
(7) _____plating is done onkitchen gas burners?
(a) Zinc
(b) Chromium
Ans:- (b) Chromium
(8) _____ is made by coating on ornaments made of less expensive metals?
(a) Artificial jewellery
(b) Oxidised jewellery
Ans:- (a) Artificial jewellery
(9) Most jewellery gets ______ to help maintain appearance and durability.
(a) Electro polished
(b) Electroplated
Ans:- (b) Electroplated
(10) Jewellery gets ______ to protect it from corrosion.
(a) Electroplated
(b) Electro polished
Ans:- (a) Electroplated
Some Natural Phenomenon
(1) The accumulation of charges in the clouds leading to ____?
(a) Lightning
(b) Raining
Ans:- (a) Lightning
(2) The electrical charges produced by rubbing are called ____?
(a) Static charge
(b) Dynamic charge
Ans:- (a) Static charge
(3) Like charges ____ and unlike charges ____ each other?
(a) Attract, repel
(b) Repel, attract
Ans:- (b) Repel, attract
(4) When charges move, they constitute a _____?
(a) Electric current
(b) Dynamic electricity
Ans:- (a) Electric current
(5) The device that is used to test whether an object is carrying charge or not, is known as _____?
(a) Switch
(b) Electroscope
Ans:- (b) Electroscope
(6) The process of transferring of charge from a charged object to the earth is called _____?
(a) Electric discharge
(b) Earthing
Ans:- (b) Earthing
(7) ____ is provided in buildings to protect us from electrical shocks?
(a) Earthing
(b) Lightning conductor
Ans:- (a) Earthing
(8) ____ can protects buildings from the effects of lightning?
(a) Earthing
(b) Lightning conductor
Ans:- (b) Lightning conductor
(9) An earthquake can causes _____?
(a) Lightning
(b) Landslides
Ans:- (b) Landslides
(10) The power of an earthquake is expressed in terms of a magnitude on a scale called _____ scale?
(a) Kelvin
(b) Richter
Ans:- (b) Richter
(11) The waves of earthquake are recorded by _____?
(a) Seismograph
(b) Electroscope
Ans:- (a) Seismograph
(12) The destructive earthquakes have magnitude higher than ____ on the richter scale?
(a) 8
(b) 7
Ans:- (b) 7
(13) The disturbance in the earth’s crust causes ____?
(a) Tsunami
(b) Earthquake
Ans:- (b) Earthquake
(14) A charged balloon _____ a charged balloon?
(a) Repelled
(b) Attracted
Ans:- (a) Repelled
(15) A charged balloon _____ a charged refill?
(a) Repelled
(b) Attracted
Ans:- (b) Attracted
(16) The electrical charges generated by rubbing are _____?
(a) Static
(b) Current
Ans:- (a) Static
(17) Earthquakes tend to occur at the boundaries of earth’s plates. These boundaries are known as ______.
(a) Fault zones
(b) Frigid zones
Ans:- (a) Fault zones