everyday science MCQs – Page 12

Practise multiple-choice questions from everyday science for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

everyday science Mcqs
221. When a person enters a dark room from bright light he is not able to see clearly for a little while because the?
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A. Iris is unable to dilate the pupil immediately

B. Retina becomes insensitive momentarily

C. Distance between the lens and retina take time to adjust

D. Eye is unable to adjust itself immediately

222. The SI unit of Heat is________?
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A. Newton

B. Watt

C. Joule

D. Volt

223. Scalding with steam is more severe than scalding by boiling water because_______?
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A. Steam contains more energy than boiling water

B. Steam can penetrate the skin

C. Steam is at a higher temperature

D. Steam is at a higher pressure

224. The device used to convert Alternate Current into Direct Current is called?
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A. Battery

B. Rectifier

C. Anemometer

D. Galvanometer

225. A person of which of the following blood groups is called a universal donor?
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A. B

B. O

C. AB

D. A

226. A nuclear reactor is a device used to carry out controlled nuclear reaction whereas GM counter is a device used to detect?
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A. Current

B. Nuclear Radiation

C. None of these

D. power

E. Voltage

227. Which gland in the human body is called the master gland?
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A. Spleen

B. Pancreas

C. Pituitary

D. Thyroid

228. The sun appears red at sunrise and sunset while it appears white at noon, because
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A. It is cooler at sunrise and at sunset

B. Of diffraction leading to red end of the spectrum reaching the earth.

C. Of Scattering of light due to dust particles and air molecules.

D. Of refraction

229. Which triplet in DNA codes for valine ?
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A. CTT

B. AAT

C. CAT

D. AGU

E. None of these
230. Which of the following helps in clotting of blood?
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A. Vitamin K

B. Vitamin D

C. Vitamin B2

D. Vitamin B1

231. The instrument which i specially design for recording earth quake wave is called seismograph which measure earth quake waves on a ____________?
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A. Diatonic scale

B. None of these

C. Richter scale

D. Fahrenheit Scale

E. Celsius Scale

232. A camera uses a __________ to form an image.
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A. condenser lens

B. concave lens

C. none of these

D. convex lens
233. The absorption of ink by blotting paper involves__________?
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A. Capillary action phenomenon

B. Diffusion of ink through the blotting

C. Viscosity of ink

D. Siphon action

234. Cobalt is a material which is ?
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A. not a magnet

B. None of these

C. Not attracted by a magnet

D. Strongly attracted by a magnet

E. Weakly attracted by a magnet

235. Current stage of star Sun is___________?
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A. orange dwarf

B. white dwarf

C. . yellow dwarf

D. red giant

236. The protein content of edible portion of egg is___________?
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A. 13.3%

B. 14%

C. 13%

D. 14.50%

237. The Virus of AIDS affects the growth of_____________?
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A. Hemoglobin

B. RBCs in blood

C. T cells in blood

D. Grey Cells in blood

238. Average salinity or ratio of salt as per kilogram of water of ocean is__________?
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A. 42 grams

B. 35 grams

C. 55 grams

D. 32 grams

239. How many bones in our body?
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A. 204

B. 206

C. 102

D. 306

240. Particle clouds from where stars are formed are known as____________?
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A. Star clouds

B. Event horizons

C. Stellar nurseries

D. Singularities