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

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

201. Deficiency of Iron in the human body causes
(a) Goitre
(b) Trachoma
(c) Anemia (Correct)
(d) Glaucoma

202. Disease not related to lung malfunctioning is
(a) Tuberculosis
(b) Anemia (Correct)
(c) Pneumonia
(d) Pleurisy

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203. In which of the following diseases do the germs enter through open wounds?
(a) Malaria
(b) Tuberculosis
(c) Typhoid
(d) Tetanus (Correct)

204. Argon laser is used for operating the
(a) Eye cancer
(b) Glaucoma (Correct)
(c) Kidney stone
(d) Bone disease

205. When light enters from rare to denser medium, it bends towards the normal line, it is called
(a) Reflection of light
(b) Diffraction of light
(c) Refraction of light (Correct)
(d) Absorption of light

206. The energy stored in a stretched spring is
(a) Potential energy
(b) Kinetic energy
(c) Heat energy
(d) Elastic potential energy (Correct)

207. Blood does not coagulate inside the body due to the presence of
(a) Hemoglobin
(b) Heparin (Correct)
(c) Fibrin
(d) Plasma

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208. A person of which of the following blood group is called a universal donor?
(a) O (Correct)
(b) AB
(c) A
(d) B

209. The function of hemoglobin is
(a) To transport oxygen (Correct)
(b) Destruction of bacteria
(c) Prevention of anemia

210. During sleep a man’s blood pressure:
(a) Increase
(b) Decrease
(c) Constant
(d) Fluctuates (Correct)

211. The organ which destroys worn out RBCs in the body of a vertebrate is:
(a) Pancreas
(b) Liver
(c) Bone marrow
(d) Spleen (Correct)

212. Which of the following is a fungal disease?
(a) Ringworm (Correct)
(b) Leucoderma
(c) Elephantiasis
(d) None of these

213. Bronchitis is a disease of which of the following organs?
(a) Blood
(b) Bladder
(c) Liver
(d) Respiratory tract (Correct)

214. Acquired Immuno-Deficiency Syndrome (AIDS) is caused by
(a) Bacterium
(b) Protozoan
(c) Fungus
(d) Virus (Correct)

215. ECG is used for the diagnosis of ailment of the
(a) Brain
(b) Heart (Correct)
(c) Kidneys
(d) Lungs

216. In cells chemical energy is transformed into
(a) Kinetic energy
(b) Potential energy
(c) Heat energy
(d) Electrical energy (Correct)

217. When a body is dropped from a certain height, the gravitational potential energy is converted into
(a) Elastic potential energy
(b) Chemical energy
(c) Kinetic energy (Correct)
(d) All of the above

218. Human body converts chemical potential energy of food into
(a) Kinetic energy
(b) Light energy
(c) Nuclear energy
(d) Heat energy (Correct)

219. Who among the following scientists is responsible for binomial nomenclature?
(a) Charles Darwin
(b) Carl Von Linnaeus (Correct)
(c) Theophrastus, P
(d) Hooker, J.D.

220. Neutron was discovered by
(a) Otto Hahn
(b) Enrico Fermi
(c) Lise Meitner
(d) James Chadwick (Correct)

221. ‘Circulation of blood’ in the body was discovered by
(a) Joseph Lister
(b) Robert Hooke
(c) John Napier
(d) William Harvey (Correct)

222. Electrochemical energy is required for the working of
(a) Circulatory system
(b) Nervous system (Correct)
(c) Excretory system
(d) All of the above

223. Which of the following gives correct descending order of elasticity in the substances?
(a) Rubber, silver, glass
(b) Silver, rubber, steel
(c) Steel, silver, rubber (Correct)
(d) All of the above

224. The phenomenon of land and sea breeze is as a result of
(a) Conduction
(b) Convection (Correct)
(c) Radiation
(d) None of these

225. When water boils, its temperature
(a) Begins to increase
(b) Begins to decrease
(c) Remains constant (Correct)
(d) Fluctuates

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226. Diabetes is caused due to the malfunctioning of:
(a) Liver
(b) Kidneys
(c) Pancreas (Correct)
(d) Spleen

227. Which of the following diseases usually spreads through milk?
(a) Tuberculosis (Correct)
(b) Jaundice
(c) Diphtheria
(d) Cholera

228. Urine of a diabetes patient contains more than average quality of which of the following?
(a) Sugar (Correct)
(b) Uric acid
(c) Urea
(d) Albumin

229. A form of heart disease in which blood supply to the heart is inadequate is known as:
(a) Hepatitis
(b) Alpoecia
(c) Angina (Correct)
(d) Pericarditis

230. Amnesia is related to:
(a) Sleeping sickness
(b) Loss of sight
(c) Loss of hearing
(d) Loss of memory (Correct)

231. The flow of heat from a hot to a cold body is an example of
(a) Adiabatic process
(b) Irreversible process
(c) Reversible process
(d) Isothermal process (Correct)

232. Tibia is a bone found in the
(a) Skull
(b) Arm
(c) Leg (Correct)
(d) Face

233. The strongest muscle in the human body is
(a) Jaw
(b) Thigh (Correct)
(c) Calf
(d) Upper arm

234. Vertebral column in human beings consists of how many vertebrae
(a) 5
(b) 10
(c) 12
(d) 33 (Correct)

235. A pressure cooker reduces cooking time because?
(a) Heat is more evenly distributed
(b) B.P. of water inside the cooker is increased (Correct)
(c) The high pressure tenderizes the food

236. In an earthen pot cooling of water depends upon
(a) Outside temperature
(b) Atmospheric humidity
(c) Wind
(d) All of the above (Correct)

237. An electric motor is used to convert
(a) Electrical energy into mechanical energy  (Correct)
(b) Mechanical energy into kinetic energy
(c) Mechanical energy into electrical energy

238. Femur, tibia and fibula are bones of
(a) Pectoral girdle
(b) Hip girdle
(c) Arms
(d) Legs (Correct)

239. Relevant bones of the joints are held together by
(a) Tendons
(b) Ligaments (Correct)
(c) Flexors
(d) Extensors

240. Air bubble in water shines because of the phenomenon of
(a) Dispersion
(b) Refraction
(c) Diffraction
(d) Total internal reflection (Correct)

241. Life of RBC in human blood is of:
(a) 130 days
(b) 160 days
(c) 120 days (Correct)
(d) 115 hours

242. Which of the following is known as ‘graveyard of RBCs’?
(a) Liver
(b) Bone marrow
(c) Spleen (Correct)
(d) Appendix

243. Radioactivity was discovered by
(a) Henry Becquerel (Correct)
(b) Marie Curie
(c) Newton
(d) Einstein

244. Penicillin was invented by
(a) Dr Jonas E. Salk
(b) Gregory Mendel
(c) Paul Ehrlich
(d) A. Fleming (Correct)

245. Cell theory was propounded by:
(a) R. Virchow
(b) Robert Hooke
(c) Schleiden and Schwann (Correct)
(d) William Harvey

246. Cholera bacillus was discovered by:
(a) Louis Pasteur
(b) Ronald Ross
(c) Robert Koch (Correct)
(d) Joseph Lister

247. Who discovered the blood groups of man?
(a) Edward Jenner
(b) Larsen
(c) Kari Landsteiner (Correct)
(d) None of these

248. Leucocytes (white blood cells) are produced in
(a) Lymph (Correct)
(b) Spleen
(c) Bone marrow
(d) Ribs

249. Dialysis is used for the treatment of
(a) Kidney failure
(b) Heart weakness (Correct)
(c) Brain diseases
(d) None of these

250. BCG vaccine is used to produce immunity against
(a) Whooping cough(b) Tubreculosis (Correct)
(c) Virus fever
(d) Smallpox

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251. Hepatitis is a disease of which of the following organ?
(a) Heart
(b) Liver (Correct)
(c) Lungs
(d) Brain

252. What is the function of platelets?
(a) Kill the bacteria
(b) Carry the oxygen (Correct)
(c) Produce antibodies
(d) None of these

253. A molecule is
(a) A class of organic compounds
(b) The smallest unit of a substance that retains the properties of the substance (Correct)
(c) The spectrum of a substance
(d) A small mass

254. Which of the following is used as a coolant in nuclear reactors?
(a) Heavy water
(b) Cadmium
(c) Liquid sodium (Correct)
(d) Graphite

255. Philology is the Study of
(a) Bones
(b) Muscles
(c) Architecture
(d) Languages (Correct)

256. Branch of science which deals with structure of animals and plants
(a) Anatomy (Correct)
(b) Oncology
(c) Ecology
(d) None of these

257. Study of earthquakes is called as
(a) Ecology
(b) Seismology (Correct)
(c) Oncology
(d) None of these

258. Which of the following is good nuclear fuel?
(a) Uranium-238
(b) Neptunium-239
(c) Thorium-236
(d)Plutonium-239 (Correct)

259. The spherical shape of a small drop of rain is due to
(a) Viscosity
(b) Surface tension (Correct)
(c) Atmospheric pressure
(d) Gravity

260. Which one of the following colours has the shortest wavelength?
(a) Green
(b) Yellow
(c) Blue (Correct)
(d) Red

261. Which one of the following colours has the longest wavelength?
(a) Green
(b) Yellow
(c) Blue
(d) Red (Correct)

262. Alzheimer’s disease in human beings is characterized by the degeneration of
(a) Kidney cells
(b) Nerve cells (Correct)
(c) Brain cells
(d) Liver cells

263. When AIDS is diagnosed for the cause of AIDS, the patient may live for about
(a) Ten years
(b) Seven years
(c) Five years
(d) Two years (Correct)

264. Iron deficiency causes
(a) Bone deformity
(b) Irregular heart beat
(c) Tooth decary
(d) Anaemia (Correct)

265. Which of the following is not caused by bacteria?
(a) Tetanus (b) Whooping Cough
(c) Pneumonia
(d) Rabies (Correct)

266. Gene was first isolated by:
(a) C. V. Raman
(b) J. C. Bose
(c) Hargobind Khorana (Correct)
(d) S. Chandrasekhar

267. Insulin was discovered by:
(a) Alexander Fleming
(b) Edmond Fischer
(c) Dr. F G. Banting (Correct)
(d) John Napier

268. Who was the first person to televise pictures of moving objects?
(a) John Logie Baird (Correct)
(b) George Carey
(c) C.F. Jenkins
(d) Paul Nipkow

269. The scientist who explained about blood circulation for the first time:
(a) Antonyvan Leewen Hock
(b) William Harvey (Correct)
(c) Gregor Mendel
(d) Ronald Ross

270. Which of the following instruments is used for detecting and measuring small electric currents?
(a) Ammeter
(b) Flux meter
(c) Galvanometer (Correct)
(d) Voltmeter

271. The lightning conductor or rod used for protecting buildings from lightning is made of
(a) Aluminum
(b) Copper (Correct)
(c) Iron
(d) All these

272. What is the melting point of Tungsten?
(a) 500C
(b) 1,000C
(c) 2,000C
(d) 3,000C (Correct)

273. Sound travels fastest through
(a) Vacuum
(b) Steel (Correct)
(c) Water
(d) Air

274. A plant with green leaves placed in red light will appear
(a) Black (Correct)
(b) Green
(c) Red
(d) None of these

275. Which of the following is not a contagious disease?
(a) Typhoid
(b) Hysteria (Correct)
(c) Measles
(d) Influenza

276. Leukemia is a disease of the
(a) Lungs
(b) Blood (Correct)
(c) Skin
(d) Nerves

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277. The disease Elephantiasis is caused by
(a) Housefly
(b) Culex mosquito (Correct)
(c) Anopheles mosquito
(d) Lack of vitamin B

278. Short-sightedness can be corrected by
(a) Convex lens
(b) Concave lens (Correct)
(c) Convex-concave lens
(d) Concave-convex lens

279. Which metal is commonly used as a electromagnet?
(a) Copper
(b) Iron (Correct)
(c) Nickel
(d) None of these

280. The dynamo converts
(a) Mechanical energy into electrical energy (Correct)
(b) Electrical energy into mechanical energy
(c) Mechanical energy into magnetic energy

281. Why is the light of ordinary lamp hotter than the tube light?
(a) It is due to incandescence (Correct)
(b) It is due to ionization of gases
(c) Distribution of energy
(d) None of these

282. Rise in temperature, the conductivity of metals will
(a) Decreases
(b) Increases (Correct)
(c) Remains unchanged
(d) None of these

283. Which of the following gases is used in fire extinguishers?
(a) Oxygen
(b) Hydrogen
(c) Water vapour
(d) Carbon dioxide (Correct)

284. Fat is digested in the
(a) Mouth
(b) Large intestine
(c) Spleen
(d) Small intestine (Correct)

285. What is the average adult pulse rate?
(a) 140-150
(b) 115-125
(c) 72-80 (Correct)
(d) 60

286. The shortest bone in the human body is
(a) Vertebrae
(b) Stapes (Correct)
(c) Phalages
(d) Metacarpals

287. Wisdom teeth normally grow between the ages of
(a) 30-40 (Correct)
(b) 17-30
(c) 45-55
(d) 10-17

288. There are approximately how many muscles in human body?
(a) 600
(b) 350
(c) 580
(d) 680 (Correct)

289. Biological death of a patient means death of tissues of the:
(a) Kidney
(b) Heart
(c) Lungs
(d) Brain (Correct)

290. A plant cell is distinguished from an animal cell by the presence of
(a) Nucleus
(b) Cell wall (Correct)
(c) Cell membrane
(d) None of these

291. Which of the following is caused by bacterial infection?
(a) Malaria
(b) Tetanus (Correct)
(c) Cancer
(d) Rabies

292. Which of the following diseases induces immunity?
(a) Smallpox (Correct)
(b) Jaundice
(c) Diabetes
(d) Tuberculosis

293. Acquired Immunal Deficiency Syndrome (AIDS) is caused by
(a) Protozoa
(b) Virus (Correct)
(c) Fungus
(d) Bacteria

294. All of the following are viral diseases, except
(a) AIDS
(b) Chicken Pox
(c) Cholera
(d) Rabies (Correct)

295. Haemophilia means failure of the
(a) Heart to contract
(b) Kidney to filter
(c) Blood to clot (Correct)
(d) Stomach to digest

296. Who among the following received Nobel Prize for Unraveling the helical structure of proteins?
(a) Linus Pauling (Correct)
(b) Maurice Wilkins
(c) Sanger
(d) John Napier

297. Who invented the Polio vaccine?
(a) Janas Salk (Correct)
(b) Burk Holder
(c) Robert Koch
(d) Albert Sabin

298. Who invented the laser?
(a) Sir Frank Whittle
(b) Fred Morrisson
(c) Charles H. Townes (Correct)
(d) Symour Cray

299. Which one of the following scientists made Nylon?
(a) Walter Hunt
(b) W. H. Carothers (Correct)
(c) C.F. Kettkekring
(d) W. L. Judson

300. Cooking gas is a mixture of which of the following two gases?
(a) Methane and Carbon dioxide
(b) Oxygen and Nitrogen
(c) Bautane and Propane
(d) Oxygen and Methane (Correct)

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