General Science Multiple choice questions answer pdf Test no -3
Welcome to digital odisha, here we discuss some general science multiple choice questions which hlep to your all competitive exam, general science objective questions answer. In this post we discuss science multiple choice questions test no-3 . so read the post carefully and download pdf .
Science Multiple choice questions pdf
101. The profuse perspiration is due to
(a) The still wind
(b) The hot weather
(c) The high humidity
(d) All of the above
102. What is the approximate velocity of sound in air ?
(a) 330 metres per second
(b) 3 metres per second
(c) 30 metres per second
(d) All of these
103. Meteorology is the science of
(a) Meteors
(b) Metals
(c) Weather
(d) Earthquakes
104. When a piece of ice floating on water in a vessel melts completely, the level of water will
(a) Remain the same
(b) Increase
(c) Decrease
(d) May increase or decrease
105. One can determine the age of a tree
(a) By counting the number of levels
(b) By the size of the tree
(c) By counting the number of branches
(d) By counting the number of rings
106. In the Einstein equation, = , ‘c’ denotes
(a) The velocity of light
(b) The velocity of sound
(c) A constant factor
(d) The wavelength of light
107. What are ultrasonic waves ?
(a) Sound waves having the frequency higher than the audio frequency range
(b) Sound waves having the frequency lower than the audio frequency range
(c) Sound waves produced in vacuum
(d) Sound waves produced by animals
108. What type of lens will you suggest for a far-sighted person ?
(a) Diverging
(b) Converging
(c) Plane
(d) Contact
109. Which is the main source of vitamin ‘A’ ?
(a) All the vegetables
(b) Oranges
(c) Lemon
(d) Meat
110. A person suffering from diabetes can be cured by injecting
(a) Penicillin
(b) Insulin
(c) Antibiotics
(d) Streptomycin
111. The term ‘Ecosphere’ is related to
(a) The earth’s atmosphere is which life can exist
(b) Air
(c) Water
(d) None of these
112. The human body is constituted of the largest number of atoms of the element
(a) Nitrogen
(b) Hydrogen
(c) Oxygen
(d) Phosphorus
113. The major component of bones and teeth is
(a) Calcium phosphate
(b) Calcium carbonate
(c) Calcium sulphate
(d) Calcium nitrate
114. The green colour of leaves is due to the presence of
(a) Metallic ions contained in the soil
(b) Haemoglobin
(c) Chlorophyll
(d) All of the above
115. A microphone is used to convert
(a) Sound waves into light energy
(b) Sound waves into electrical energy
(c) Electrical energy into sound waves
(d) Sound waves into thermal energy
116. The energy of food is measured in
(a) Kelvin
(b) Erg
(c) Bushel
(d) Calorie
117. The chief constituent of gobar gas is
(a) Methane
(b) Carbon dioxide
(c) Acetylene
(d) Ethylene
118. It was said that the skylab would be broken into pieces in the earth’s atmosphere
(a) Because of the high friction in the earth’s atmosphere
(b) Because of the time bomb placed in it
(c) Because of its large size
(d) Due to the gravity of the earth
119. Blackholes are the celestial bodies which
(a) Have strong magnetic field
(b) Have strong electric field
(c) Are self-luminous bodies
(d) Do not allow any light to escape outside
120. Several materials which usually fall from sky on to the earth are known as
(a) Satellites
(b) Asteroids
(c) Comets
(d) Meteors
121. Bauxite is an important ore of
(a) Aluminium
(b) Copper
(c) Zinc
(d) Iron
122. In the process of galvanization, iron sheet is coated with
(a) Zinc
(b) Tin
(c) Galena
(d) Aluminium
123. Alternating current cannot be used in
(a) Heating
(b) Refrigerator
(c) Electroplating
(d) Lighting
124. Malaria is a disease which affects the
(a) Liver
(b) Intestine
(c) Spleen
(d) Lungs