MCQ on General Science for WBCS/SSC/Misc Competetive Exams

101. The most abundant element in air of the atmosphere is :

        (a) Oxygen       (b) Nitrogen      (c) Carben- di-oxide    (d) None.

102. The most abundant metal in the crust of the earth is:

        (a) Iron       (b) Aluminium       (c) Copper       (d) None of these.

103. Living objects (animals etc.) need food to obtain:

        (a) oxygen      (b) Vitamins      (c) Energy      (d) None of these.

104. Mitochondria in a human body help to:

        (a) produce energy       (b) synthesize proteins       (c) digest      (d) None.

105. The length of 12 inches (or 1 foot) is equal to :(Approx).

        (a) 0.2848 metre       (b) 0.2932 metre       (c) 0.3048 metre        (d) None.

106. The speed of light in vacuum per second is approximately:

        (a) 3 x105 kms        (b) 2 x 84 kms       (c) 106 kms       (d) None of these

107. One square metre is equal to:

        (a) 9.84 sq. ft       (b) 10.76 sq. ft       (c) 11.44 sq. ft        (d) None.

108. Which one of the following is an example of electrical power being turned into mechanical power:

        (a) calling Bell       (b) Table Fan      (c) Dynamo      (d) None.

109. A person can jump 2 ft high on earth, how far high he can jump on the surface of the moon ?

        (a) 2 ft      (b) 4 ft       (c) 8 ft       (d) 12 ft.

110. The number of bones in a normal human body is:

        (a) 106       (b) 184       (c) 206       (d) 306.

111. Pressure cooker can cook quicker because of higher inside :

        (a) Pressure       (b) Heat       (c) movement       (d) None of these.

112. The unit of Force in F.P.S. system is :

        (a) Dyna        (b) Poundal        (c) Newton        (d) None of these.

113. The largest organ in the human body is :

        (a) heart       (b) Liver       (c) brain        (d) kidney.

114. The strongest muscle in a human body is found in :

        (a) Arm        (b) Thigh       (c) neck       (d) jaw.

115. White Blood Corpuscle (WBC) is produced in :

        (a) Lungs      (b) Heart      (c) Bone Marrow       (d) Spleen

116. Around what fraction of the body weight in a human body is the weight of blood in that body :

        (a) 1/8        (b) 1/10        (c) 1/12       (d) None of these

117. The organ which coordinates the different functions in body :

        (a) Heart        (b) lungs       (c) Brain       (d) None of these

118. Gastric Juice in a human body is supplied by the :

        (a) Stomach        (b) Pancreas        (c) Liver      (d) None of these

119. Which one of the following blood group is Universal donor ?

        (a) A       (b) AB       (c) B      (d) O

120. The number of Vertebrae in the backbone of a human body is :

        (a) 21        (b) 26        (c) 33        (d) 42

121. Which one of the following is capable to change shape ?

        (a) Bacteria         (b) Protozoa        (c) Amoeba        (d) None of these

122. In a non-ventilated room a charcoal fire is found to bring :

        (a) Carbon-di-oxide       (b) Carbon-monoxide       (c) Hydrogen        (d) None

123. Which one of following is not necessary for Stainless Steel :

        (a) Iron         (b) Chromium         (c) Nickel         (d) Mica

124. The Theory of Evolution was developed by :

        (a) Darwin       (b) Mendel       (c) Newton      (d) Freud

125. How many pairs of Chromosomes are there in a human cell ?

        (a) 12       (b) 19        (c) 23         (d) 46

126. The growth in a human body is controlled by the :

        (a) Chromosomes       (b) Hormones       (c) Muscle       (d) None of these

127. Which one of the following is not an example of Infectious disease ?

        (a) Tuberculosis       (b) Cholera        (c) Small pox       (d) Arthritis

128. Which one of the following is not a cold blooded

        (a) snake        (b) Fish       (c) Rat       (d) None of these

129. Which one is considered as the 'power house of cell' in a body ?

        (a) Mitochondria       (b) Cytoplasm       (c) Protoplasm       (d) None

130. DNA remaining in the body of an animal is considered as :

        (a) Cells       (b) Chemical acids        (c) living organism        (d) None of these

131. The main part of a human brain is :

        (a) Cerebrum        (b) Medulla        (c) Thalamus       (d) None of these

132. Which type of Nerve help a person to take scent ?

        (a) Trochlear       (b) olfactory        (c) facial        (d) None of these

133. A person suffering from 'Myopia' can not clearly see the things remaining ......... in a proper manner ?

        (a) near       (b) afar       (c) below        (d) None of these

134. Growth Hormone or S.T.H. is secreted from .......... gland ?

        (a) Pituitary        (b) Adrenal        (c) Thyroid       (d) None of these

135. In which case growth occurs during the whole life time ?

        (a) Animals       (b) Insects       (c) Plants       (d) None of these

136. Comparative size of head in a human body is bigger among :

        (a) Babies       (b) Young Persons        (c) Old persons        (d) None of these

137. Comparative number of heart-beats is more among ?

        (a) Babies       (b) youngmen       (c) old men        (d) None of these

138. Which one is a medicine for persons suffering from night blindness ?

        (a) Vitamin A        (b) Vitamin B        (c) Vitamin D       (d) Iodine

139. Halophytes group of trees grow quickly in :

        (a) Black soil       (b) Red soil        (c) salted soil       (d) None of these

140. Power supplied by Dry Cell Battery is an example of :

        (a) Mechanical Power       (b) Chemical power        (c) Solar power       (d) None of these

141. A normal adult person respires around ........ times per minute :

        (a) 15       (b) 20        (c) 25       (d) 30

142. Which of the following is not a constituent of food ?

        (a) Vitamins        (b) Proteins         (c) Minerals        (d) Hormones

143. To maintain survival a person is required to take some :

        (a) Proteins         (b) Fats         (c) Carbohydrates        (d) None of these

144. The most important function of food in a human body is to :

        (a) satisfy hunger        (b) generate energy        (c) provide minerals       (d) None of these

145. Which one of the following has not been correctly matched ?

        (a) Glucose : Carbohydrates        (b) Butter : Fats      (c) Orange : Vitamin C       (d) Mineral Salt : Hormones

146. Which one occurs through Chemical change :

        (a) boiling of water       (b) melting of sulphur      (c) rusting of iron       (d) None of these

147. Which one is neither an element nor a compound ?

        (a) Gold        (b) water       (c) Air      (d) None of these

148. The percentage of oxygen in pure water is around :

        (a) 15%      (b) 50%      (c) 75%       (d) 88%

149. Which one is the hardest form of Carbon ?

        (a) Coke       (b) Graphite       (c) Diamond      (d) None of these

150. Raw materials used to manufacture Portland Cement are mainly

        (a) Limestone & Gypsum      (b) Limestone, clay and gypsum      (c) Clay & Limestone      (d) Clay and gypsum

151. Galvanization on iron instruments is done by using ?

        (a) Zinc       (b) nickel        (c) chromium      (d) None of these

152. Which one of the following is Potassium Carbonate ?

        (a) KCO3         (b) KCIO3        (c) CaCO3       (d) H2O2

153. Which one of the following is Nitric Acid

        (a) NaCl        (b) CaCO3        (c) NaCl2       (d) HNO3

154. Which one of the following has not been correctly matched ?

        (a) Frequency : Hertz        (b) Pressure : Pascal       (c) Electric resistance : Volt       (d) None of these

155. Which one has not been correctly matched in Roman system :

        (a) 50=L      (b) 100=C       (c) 500=E       (d) 1000=M

156. When it is noon in India the time in Kualalumpur is 2 P.M. The longitude for time at Kualalumpur is :

        (a)100° E      (b) 125°E       (c) 112.5° E        (d) 120° E

157. Which one of the following is not correctly matching ?

        (a) Circulation of blood : William Harvey       (b) Vaccination : Edward Jenner

        (c) Rabies Vaccine : Louis Pasteur         (d) Streptomycin : Alexander Fleming

158. Which one was invented at the earliest ?

        (a) Printing Press        (b) Spectacles       (c) Safety pin        (d) Microscope

159. Which one has not been correctly matched regarding the country of origin of the Scientists ?

        (a) Thomas Alva Edison : USA        (b) Alexander Graham Bell : Brit­ain

        (c) Louis Pasteur : France        (d) Galileo Galilei : Italy

160. Which one has not been correctly matched ?

        (a) Spinning Frame : Richard Arkwright         (b) X-ray : W.K.Roentzen

        (c) Guided Missile : W.V.Braun       (d) Safety Match : C.Gallette

161. In cloning process which animal was produced at earliest ?

        (a) Rat        (b) Cat         (c) Sheep        (d) Horse.

162. The subjecl of Genetic Engineering has been applied widely and successfully in the production of :

        (a) Crops        (b) Animals        (c) Chemicals       (d) None of these

163. Which one is not a water soluble vitamin ?

        (a) Vitamin A        (b) Vitamin B        (c) Vitamin C       (d) None of these

164. Around what percentage of a human body is Minerals ?

        (a) 4%        (b) 6%        (c) 8%         (d) 10%

165. Around what percentage of a body weight is water in a human

        (a) 50%         (b) 60%        (c) 70%        (d) 80%

166. Deficiency of which Vitamin may bring anaemia, fatigue etc.

        (a) B2       (b) B6       (c) B12      (d) None of these.

167. In a balance diet which one is to remain in highest weight ?

        (a) Cereals       (b) Vegetables        (c) Milk      (d) Meat/fish

168. Which one of the following species are human beings ?

        (a) Pipiens        (b) Gairdneril       (c) Sapiens       (d) None of these

169. With the passage of time sea water level has been :

        (a) lowering       (b) rising        (c) remaining the same       (d) None of these.

170. What percentage of total water of the Hydrosphere is found to remain within inland water sources like river, ponds, glaciers, underground water etc.

        (a) 3%        (b) 6%       (c) 10%        (d) 20%.

171. In which year first Spaceship was sent towards the Space ?

        (a) 1955        (b) 1957        (c) 1961       (d) 1963.

172. In which year Rakesh Sharma of India travelled in Space ?

        (a) 1969        (b) 1978        (c) 1984       (d) None of these

173. Which one of the following is the name of a spaceship ?

        (a) Skylab        (b) Mir        (c) Challenger       (d) None of these

174. in which spaceship India born Kalpana Chawla travelled ?

        (a) Atlantis         (b) Columbia        (c) Gemini        (d) None of these

175. Which one is not associated with Nervus system in a body ?

        (a) brain        (b) spinal cord        (c) veins        (d) trachea

176. Which one of the following nations has got lowest infant mortality (among the alternatives) :

        (a) Cambodia         (b) Singapore         (c) India       (d) U.S.A.

177. In protein systhesis in human body DNA is assisted by :

        (a) Cromosomes       (b) Hormones       (c) RNA       (d) None of these.

178. In Clone process a cell of a male animal can produce only :

        (a) Only male baby         (b) Only female baby      (c) Either of male or female baby      (d) None of these

179. Digital calculator was invented by

        (a) Balaise Pascall       (b) John Napier       (c) IBM       (d) None of these.

180. The programmes associated to run a computer is known as :

        (a) Language        (b) Hardwares        (c) Software      (d) None of these

181. 'B' of the abbreviation 'BASIC refers to :

        (a) Base     (b) Beginners      (c) Business     (d) None of these.

182. WWW or W3 is associated with the use of :

        (a) Telephone        (b) Telex       (c) Fax      (d) Internet

183. The Super computer developed by Indian engineers is :

        (a) Arjun        (b) Shakti        (c) Param        (d) None of these

184. Which one of the following is the name of Computer Software used to destroy computer system of others ?

        (a) Viruses        (b) Worms        (c) Logic bombs        (d) All of these

185. Which company developed Computer Software named Window Series ?

        (a) IBM       (b) Microsoft       (c) Apple       (d) None

186. Superconductivity, if developed potentially, can help to reduce cost of connection of :

        (a) Airways        (b) Roadways       (c) Electricity       (d) None of these.

187. Which temperature is considered as 'Absolute Zero' ?

        (a) 1000° C        (b) -100° C        (c) - 273° C      (d) None of these

188. A temperature of 40° Celsius is equal to :

        (a) 60° F       (b) 96° F       (c) 104° F       (d) None of these

189. At whIch temperature the reading in Celsius and Fahrenheit Scale is the same :

        (a) -10°        (b) -20°       (c) -30°        (d) -40°

190. Gold weighing 100 Tolas is equal to :

        (a) 1000 grams       (b) 1050 grams       (c) 1100 grams       (d) 1166 grams

191. Which one of the following has not been correctly matched ?

        (a) Agrostology : study of grasses       (b) Anemology : Studies relating to wind

        (c) Metrology : Studies of atmosphere      (d) Ethology : Studies relating to animal behaviour.

192. Toxicology is a subject of studies relating to :

        (a) Poisons        (b) Viruses         (c) Birds        (d) None of these

193. The subject relating to studies of Fossils is :

        (a) Paleobotany         (b) Paleontology        (c) Pedology        (d) None of these

194. The studies relating to fungi and fungus diseases is known as

        (a) Mycology        (b) Phycology        (c) Nosology       (d) Cytology

195. A Doctor associated with treatment of patients suffering from ailments of hearts should be an expert jn :

        (a) Cartography        (b) Cosmogony       (c) Etymology        (d) Cardiology

196. Which one is used to measure diameter of Wire, tube, rod etc.

        (a) Gravimeter        (b) Cryometer        (c) Calliper       (d) None

197. Which one is used to measure velocity and direction of wind ?

        (a) Altimeter        (b) Anemometer        (c) Atmometer        (d) None of these

198. Which one has not been correctly matched ?

        (a) Pyrheliometer : Solar radiations        (b) Pyrometer : High Temperature

        (c) Photometer : Luminous intensity      (d) All correct

199. Which one is used to measure humidity of atmosphere ?

        (a) Hygrometer        (b) Colorimeter        (c) Calorimeter        (d) Manometer

200. Which one is used by Doctor to measure strength of pulse ?

        (a) Spygmomanometer       (b) Spygmometer       (c) Stethoscope       (d) None of thes