General Science (Everyday Science) Important Solved MCQs for Competitive Exams (Set II)

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General Science (Everyday Science) Important Solved MCQs for Competitive Exams
Read General Science Important Solved MCQs (Set I)

101. Air is completely removed from an electric bulb to prevent
(a) Oxidation of tungsten filament (Correct)
(b) Bursting of the bulb
(c) Loss of light due to absorption

102. A person climbing a hill bends forward in order to
(a) Avoid slipping
(b) Increase speed
(c) Reduce fatigue
(d) Increase stability (Correct)

103. When the door of an operating refrigerator is opened the temperature of the room will
(a) Decrease
(b) Remain unchanged
(c) Fall down immediately
(d) Increase (Correct)

104. Primarily, which one of the following systems of the body is attacked by the HIV?
(a) Cardiovascular
(b) Immune (Correct)
(c) Respiratory
(d) Reproductive

105. Cirrhosis is a disease that affects:
(a) Heart
(b) Liver (Correct)
(c) Brain
(d) Lungs

106. Goitre is associated with
(a) Thyroid glands (Correct)
(b) Pituitary glands
(c) Para-thyroid glands
(d) Thymus glands

107. Which area of the brain is responsible for control of the body temperature?
(a) Pituitary
(b) Thalamus
(c) Hypothelamus (Correct)
(d) Pineal

108. A branch of medicine studying blood and its disorders is called
(a) Dermatology
(b) Hematology (Correct)
(c) Pathology
(d) None of these

109. The study of tissues is called
(a) Geology
(b) Histology (Correct)
(c) Radiology
(d) Toxicology

110. Deficiency of chloride cause the impaired growth in
(a) Animals
(b) Infants (Correct)
(c) Plants
(d) Young man

111. The major part of natural gas, petroleum and coal consist of
(a) Carbon dioxide
(b) Chlorine
(c) CFC
(d) Methane (Correct)

112. Substances used to bring relief in pain are called?
(a) Ant pain
(b) Antipyretics
(c) Antibiotics
(d) Analgesics (Correct)

113. Substances which bring down the body temperature are known as?
(a) Antipyretics (Correct)
(b) Analgesics
(c) Antibiotics
(d) Formalin

114. What are Antibodies?
(a) Carbohydrates
(b) Enzymes
(c) Proteins (Correct)
(d) Hormones

115. Dialysis is used in the case of a patient suffering from
(a) Heart problems
(b) Kidney problems (Correct)
(c) Respiratory diseases
(d) Neurological disorders

116. Which one is metal?
(a) Gypsum
(b) Iron (Correct)
(c) Limestone
(d) granite

117. In blood, the percentage of water is
(a) 75%
(b) 85%
(c) 90% (Correct)
(d) 95%

118. The human blood is divided into
(a) Two groups
(b) Three groups
(c) Four groups (Correct)
(d) Five groups

119. Which type of blood of individuals are known as universal donor.
(a) Type A
(b) Type B
(c) Type AB
(d) Type O (Correct)

120. Who discovered antiseptic surgery?
(a) Joseph Lister (Correct)
(b) Ronald Ross
(c) Alexander Fleming
(d) William Harvey

121. Which type of blood of individuals are universal recipients.
(a) Type A
(b) Type A, B (Correct)
(c) Type B
(d) Type O

122. The muscles, tissues and blood all are made up of
(a) Carbohydrates
(b) Proteins (Correct)
(c) Vitamins
(d) Fats

123. What is used in making of alloys?
(a) Gypsum
(b) Granite
(c) Chromium (Correct)
(d) Lime-stone

124. The persons whose blood has a reduced capacity of delivering oxygen to tissues suffer from
(a) Hemophilia (Correct)
(b) Sickle cell
(c) Colourblind
(d) Anemia

125. Colourblind person cannot distinguish red from
(a) Yellow
(b) Blue
(c) Green (Correct)
(d) White

126. Darwin himself bred
(a) Pea plants
(b) Pigeons (Correct)
(c) Wild mustard
(d) Tomatoes

127. Which of the following has no nucleus?
(a) A human cell
(b) A plant cell
(c) An electric cell (Correct)
(d) An atom

128. Vitamins was discovered by
(a) Edison
(b) Funk (Correct)
(c) John Napier
(d) None

129. Who invented the internal combustion engine?
(a) Franco Modigliani
(b) Rudolf Diesel (Correct)
(c) Carl Benz
(d) Jacques Besson

130. For which invention is Alessandro Volta famous?
(a) Light bulb
(b) Telephone
(c) Battery (Correct)
(d) Camera

131. Who discovered X rays?
(a) Wilhelm Rontgen (Correct)
(b) Max von Laue
(c) Max Planck
(d) Marie Curie

132. The largest cell in the human body is
(a) Nerve cell (Correct)
(b) Muscle cell
(c) Liver cell
(d) Kidney cell

133. For sending sound waves at large distance, which waves are used?
(a) Infrared waves
(b) Radio waves (Correct)
(c) Light waves
(d) X-waves

134. The acid used in a car battery is
(a) Hydrochloric acid
(b) Nitric acid
(c) Sulphuric acid (Correct)
(d) Carbonic acid

135. The vitamin which is generally excreted by humans in urine is:
(a) Vitamin A
(b) Vitamin D
(c) Vitamin C (Correct)
(d) None of these

136. Cow milk is a rich source of:
(a) Vitamin A (Correct)
(b) Vitamin B
(c) Vitamin C
(d) Vitamin D

137. Which of the following vitamins is useful in Ostcoimalacia?
(a) Vitamin D (Correct)
(b) Vitamin B12
(c) Vitamin A
(d) Vitamin C

138. Which type of Uranium is used in the fission process?
(a) Uranium – 234
(b)Uranium – 235 (Correct)
(c) Uranium – 236
(d) Uranium – 237

139. Bio gas is the common name of
(a) Natural gas (Correct)
(b) Oxygen
(c) Carbon dioxide
(d) Nitrogen

140. One thousand watt power is called as
(a) 0.5 kilowatt
(b) 0.8 kilowatt
(c) 1.0 kilowatt (Correct)
(d) 1.5 kilowatt

141. Washing soda in water behaves
(a) Alkaline
(b) Acidic (Correct)
(c) Neutral
(d) None of these

142. Which material used for bleaching paper?
(a) Caustic soda
(b) Sodium (Correct)
(c) Lime
(d) None of these

143. Which of the following is a gas?
(a) Thorium
(b) Plutonium
(c) Mercury
(d) Chlorine (Correct)

144. Radar transmits short pulses of high frequency
(a) Infrared waves
(b) Radio waves (Correct)
(c) Ultraviolet waves
(d) Sound waves

145. Which one of the following can be used to focus sunlight?
(a) Plane mirror
(b) Concave lens
(c) Concave mirror (Correct)
(d) None of these

146. The study of the nervous system and its disorder is called
(a) Urology
(b) Hematology
(c) Neurology (Correct)
(d) Herpetology

147. The largest internal organ in the human body is
(a) Skin
(b) Muscle cell
(c) Liver (Correct)
(d) Kidney cell

148. The largest organ in the human body is
(a) Skin (Correct)
(b) Muscle cell
(c) Liver cell
(d) Kidney cell

149. Total volume of blood in a normal human being is
(a) 5-6 liters (Correct)
(b) 3-4 liters
(c) 8-10 liters
(d) 10-12 liters

150. What does make the blood look red?
(a) Red corpuscles
(b) Haemoglobin (Correct)
(c) Plasma
(d) None of these

151. The gland which maintains body temperature is the
(a) Pituitary gland
(b) Thyroid gland (Correct)
(c) Adrenals
(d) Hypothalamus

152. Hemoglobin in the blood is a complex protein rich in
(a) Copper
(b) Gold
(c) Iron (Correct)
(d) Silver

153. Amino acids are a product of the digestion of
(a) Carbohydrates
(b) Fats
(c) Proteins (Correct)
(d) Vitamins

154. Red blood corpuscles are formed in the
(a) Liver
(b) Bone marrow (Correct)
(c) Kidneys
(d) Heart

155. Which of the following medicines is administered to patients suffering from diabetes?
(a) Penicillin
(b) Insulin (Correct)
(c) Sulpha drugs
(d) Streptomycin

156. Which of the following diseases occur due to consumption of contaminated water?
(a) Cholera (Correct)
(b) Influenza
(c) Malaria
(d) Tuberculosis

157. Why do the electricians wear rubber gloves while touching wires?
(a) With rubber gloves they can hold wires properly.
(b) Rubber is a bad conductor of electricity and electrician does not get electrocuted (Correct)
(c) It helps in the smooth flow of the current.

158. How does a lightening conductor protect the buildings?
(a) It absorbs the charges released by lightening.
(b) It helps the charge to pass into the earth without damaging the building (Correct)
(c) It scatters the charge from lightening.

159. Tube light works on the principle of
(a) Chemical effect of current
(b) Heating effect of current
(c) Magnetic effect of current
(d) Discharge of electricity through gases (Correct)

160. In a refrigerator, cooling is produced by
(a) The ice which deposits on the freezer
(b) The evaporation of a volatile liquid (Correct)
(c) The sudden expansion of a compressed gas

161. Mumps is a disease caused by
(a) Fungus
(b) Bacterium
(c) Virus (Correct)
(d) None of these

162. Guava is a rich source of
(a) Vitamin C (Correct)
(b) Vitamin D
(c) Vitamin A
(d) Calcium

163. ‘Rickets’ is caused due to the deficiency of
(a) Vitamin A
(b) Vitamin B
(c) Vitamin C
(d) Vitamin D (Correct)

164. Rickets is a disease of the
(a) Bones (Correct)
(b) Tissue
(c) Muscles
(d) Blood

165. A round worm that enters man’s body through the soles of the feet is:
(a) Leech
(b) Hookworm (Correct)
(c) Tapeworm
(d) Trichina

166. Atom Bomb was invented by
(a) Armstrong
(b) Otto Hahn (Correct)
(c) J.C. Herrison
(d) Louis Pasteur

167. Gene was first isolated in laboratory by
(a) J.C. Bose
(b) John Napier
(c) Hargobind Khorana (Correct)
(d) John Napier

168. Which device was invented in 1973 by Dr Martin Cooper at Motorola?
(a) Pager
(b) Cordless phone
(c) Cell phone (Correct)
(d) Satellite phone

169. Who was the first to measure earth’s radius?
(a) Galileo
(b) Copernicus
(c) Ptolemy
(d) Eratosthenes (Correct)

170. When water boils, its temperature
(a) Begins to increase
(b) Begins to decrease
(c) Remains constant (Correct)
(d) All of these

171. Electromagnetic waves travel with the
(a) Speed of light (Correct)
(b) Speed of sound
(c) Speed of earth rotation
(d) All of the above

172. Sound travels faster in:
(a) Dry air than in water
(b) Wood than in iron
(c) Iron than in air (Correct)
(d) All of the above

173. When a constant force is applied to a body it moves with uniform
(a) Momentum
(b) Velocity (Correct)
(c) Speed
(d) Acceleration

174. Energy of a body due to its motion is called
(a) Heat energy
(b) Kinetic energy (Correct)
(c) Potential energy
(d) Light energy

175. A moving ball stops due to the action of
(a) Nuclear Force
(b) Frictional Force (Correct)
(c) Electric Force
(d) Magnetic Force

176. What does Mycology study?
(a) Minerals
(b) Sound
(c) Insects
(d) Fungus (Correct)

177. A study of the chemical composition of the earth crust is called
(a) Geology (Correct)
(b) Chorology
(c) Zoology
(d) None of these

178. A branch of medicine dealing with eyes and related diseases is called
(a) Ophthalmology (Correct)
(b) Obstetrics
(c) Physiology
(d) Hematology

179. The tendency of a liquid drop to contract and occupy minimum area is due to
(a) Surface tension (Correct)
(b) Viscosity (c) Density
(d) Vapour pressure

180. On which principle does the tape-recorder function?
(a) Electromagnetic Induction (Correct)
(b) Electrovalence
(c) Gay Lussac’s law of combining volumes
(d) Boyle’s Law

181. The number of bones in the human body of an adult is approximately
(a) 210
(b) 250
(c) 206 (Correct)
(d) Not fixed

182. Lungs are situated in the
(a) Abdominal cavity
(b) Pericardinal cavity
(c) Buccal cavity
(d) Thoracic cavity (Correct)

183. The pancreas secretes
(a) Insulin (Correct)
(b) Vitamin A
(c) Bile juice
(d) None of these

184. The seat of memory in the human brain is located in the
(a) Medulla oblongata(b) Cerebrum
(c) Cortex (Correct)
(d) Cerebellum

185. The outermost layer of skin is known as
(a) Epidermis (Correct)
(b) Epiglottis
(c) Ligament
(d) Cartilage

186. Radio waves are
(a) Sound waves
(b) Electromagnetic waves (Correct)
(c) Water waves
(d) Heat waves

187. Which two organs glands are affected by malaria?
(a) Lungs and heart
(b) Spleen and liver (Correct)
(c) Kidneys and lungs
(d) Heart and brain

188. Which of the following scales was devised by Celsius?
(a) Absolute
(b) Centigrade (Correct)
(c) Fahrenheit
(d) Roomer

189. Oxygen was discovered by
(a) Rutherford
(b) William Ramsay
(c) Lavoisier (Correct)
(d) Neil Bohr

190. The scientist credited with the discovery of noble gases is
(a) Cavendish (Correct)
(b) Madame
(c) Rutherford
(d) McDonald

191. Who propounded the theory that the Earth revolves round the Sun?
(a) Galileo
(b) Newton
(c) Copernicus (Correct)
(d) Kepler

192. The disease in which bronchial tubes become narrow due to spasms of bronchial muscles is called
(a) Influenza
(b) Asthma (Correct)
(c) Diphtheria
(d) None of these

193. Lock Jaw, i.e., difficulty in opening the mouth is a symptom of
(a) Plague
(b) Tetanus (Correct) (Correct)
(c) Cholera
(d) None of these

194. In deserts clouds do not precipitate because of
(a) Low pressure
(b) Low humidity (Correct)
(c) High wind velocity

195. Echo is the effect produced due to
(a) Absorption of sound
(b) Dispersion of sound
(c) Reflection of sound (Correct)

196. The snow on the mountains does not melt all at once when it is heated by the sun because
(a) It has a high latent heat of fusion
(b) It reflects most of the heat from sun (Correct)
(c) It has a low specific heat capacity

197. Virus causes
(a) Cholera
(b) Typhus (Correct)
(c) Typhoid
(d) Scurvy

198. The device which converts analogue signal to digital signal is called
(a) Transformer
(b) CPU
(c) Modem (Correct)
(d) Photodiode

199. For making laser, usually we use
(a) Uranium
(b) Ruby (Correct)
(c) Magnesium
(d) Iron

200. Convex lenses are used for the correction of:
(a) Astigmatism
(b) Short sightedness
(c) Cataract
(d) Long sightedness (Correct)

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