Everyday Science important mcqs
1. Which is the outermost planet in the solar system? Neptune
2. The SI unit of charge is? Coulomb
3. Wavelength of very High Frequency (VHF) IS ? shorter
4. Long-sight defect could be corrected by using __________ lens? vonvex
5. For a fixed mass of gass at constant temperature, if we decrease volume, the pressure will _________? Increase
6. The lifespan of Red Blood Cells is __________ days? 20
7. The density of water is __________? 1 g/cm3
8. Radioactivity was discovered by __________? Bacquerel
9. The Sun is a __________? Star
10. The average adult has a blood volume of about __________ liters? 5
11. The most abundant element in the universe is __________? Hydrogen
12. The most abundant element in the Earth’s crust is ______? Oxygen
13. Each day human body breathe in ____ liters of air ? 15,000 to 20,000
14. The SI unit of “pressure” is _________? pascal
15. The most densest substance on the Earth is ________? Osmium
16. A camera uses a __________ to form an image? convex lens
17. CNG stands for? Compressed Natural Gas
18. Which from the following is true for “Sound”? Sound cannot travel through a vaccum.
1. When white light is passed through a prism, it splits into _______ colours? 6
2. Which is the outermost planet in the solar system? Neptune
3. The SI unit of charge is? Coulomb
4. Wavelength of very High Frequency (VHF) IS ? shorter
5. Long-sight defect could be corrected by using __________ lens? vonvex
6. For a fixed mass of gass at constant temperature, if we decrease volume, the pressure will _________? Increase
7. The lifespan of Red Blood Cells is __________ days? 20
8. The density of water is __________? 1 g/cm3
9. Radioactivity was discovered by __________? Bacquerel
10. The Sun is a __________? Star
11. The average adult has a blood volume of about __________ liters? 5
12. The most abundant element in the universe is __________? Hydrogen
13. The most abundant element in the Earth’s crust is ______? Oxygen
14. Each day human body breathe in ____ liters of air ? 15,000 to 20,000
15. The SI unit of “pressure” is _________? pascal
16. The most densest substance on the Earth is ________? Osmium
17. A camera uses a __________ to form an image? convex lens
18. CNG stands for? Compressed Natural Gas
19. Which from the following is true for “Sound”? Sound cannot travel through a vaccum
20. When white light is passed through a prism, it splits into _______ colours? 6
21. Instrument used for measuring very high temperature is __________.? Pyrometer
22. Sound waves are _________ waves? Longitudinal
23. The lifespan of White Blood Cells is __________ day(s)? 1
24. The fluid part of blood is known as __________? plasma
25. X-rays were discovered by __________? Rontgen
26. The speed of light is __________? 300,000 km/s
27. In a very low temperature which from the following will freeze at last? Sea water
28. The nearest planet to the Earth is _________? Venus.
29. The planet that moves round the Sun at the highest speed is? Mercury
30. In general, Comets have __________ orbits? Highly elliptical
31. Oxidation is a chemical reaction involving the __________? Loss of Electrons
32. Urine is produced in __________? Kidneys
33. Blood is cleaned by __________? Kidneys
34. The planet which is easily visible from the Earth is? Venus
35. According to the Big Bang Theory, the Universe began about __________ billion years ago? 10 – 20
36. The biosensor is used to measure? Blood glucose level
37. Einstein’s famous equation which states that mass and energy are interchangeable is? E = mc2
38. The SI unit of electric current is? Ampere
39. For proper formation of teeth, __________ is essential.? Fluorine
40. The Carbon Dioxide in the atmosphere, by volume, is? 03%
41. Diamond is an allotropic form of? Carbon
42. The SI unit of Heat is? Joule
43. The gas, commonly known as “laughing gas”, is? Nitrous Oxide
44. The energy value of food is measured in? Joule
45. Water covers __________ of the Earth’s surface? 70%
46. The fourth state of matter is? Plasma
47. The device used to convert Alternate Current into Direct Current is called? Rectifier
48. The number of oscillations per second is called? Frequency
49. Sound waves from a loudspeaker are caused by? Vibrations
50. There are __________ methods of heat transfer? 3
51. The unit used to measure ‘magnetic flux’ is? Weber
52. The battery was invented by? Volta
53. The nearest planet to the Sun is? Venus
54. Bronze is an alloy of? Copper, Tin
55. Neutrons were discovered by? James Chadwick
56. Nucleus was discovered by? Rutherford
57. Energy can be converted from one form to another, but all energy ends up as? Heat energy
58. A battery converts ________ into electrical energy? Chemical energy
59. Current is the flow of? Electrons
60. Electrons were discovered by? J. Thomson
61. Between the melting point and boiling point of a substance, the substance is a? Liquid
62. The interior structure of the Earth is divided into ________ layers? 5
63. We live on the Earth’s? Crust
64. The thickest layer of the Earth is? Mantle
65. The Earth’s crust ranges from ________ km in depth.? 5-70
66. The anode is the electrode connected to the ________ terminal of a battery? Positive
67. 1 tonne = ________ kg? 1000
68. The normal temperature of the body is? 4 degree
69. Weakest bone is? clavicle bone
70. Hardest bone is? collar bone
71. The hardest part of the body is? tooth
72. Most abundant element in the human body is carbon? Oxygen or calcium
73. Systole is heart? contraction
74. Eye is filled with ________ liquids? two
75. The femur is the longest? bone
76. Head or skull has? 29 bones
77. Total bones are? 206
78. Universal donor group is-O group
79. Life span of red blood cells is? 120 days.
80. The pH of the normal human body is Arteries? 4.
81. The Black Mamba is the fastest? Snake
82. New Zealand is close to Int? Date Line.
83. Temperature at earth’s core is? 2000 deg: C
84. Sun is 400 times larger than the? Moon
85. When are you most likely to see a penumbra? During an Eclipse.
86. A wind which reverses seasonally is? Wind
87. Oceans are on average? 4 km deep.
88. Which electromagnetic wave has the shortest wavelength? Gamma rays
89. All electromagnetic waves have the same? Speed in vacuum
90. . The reflection of sound is called? Echo
91. An instrument used to measure electric current is called? Ammeter
92. The SI unit of thermodynamic temperature is? Kelvin
93. The shortest distance between crest to crest is called? Wavelength
94. The speed of sound is fastest in? Gasses
95. . The branch of science which study the interaction between matter and radian energy is called? Spectroscopy
96. . The horizontal rows of the periodic table are called? Periods
97. The vertical columns of the periodic table are called? Groups
98. Which metallic element is liquid at room temperature? Mercury
99. Which non-metallic element is liquid at room temperature? Bromine
100. Battery charger converts electrical energy into ___energy? Chemical
101. A loudspeaker changes ________ energy into sound energy? Electrical.
102. The strongest part(s) of a magnet is/are? North and south pole
103. When gas is ionized, ________ forms. ? Plasma
104. Wind is caused by? Difference in atmospheric pressure
105. Wind speed is measured by? Anemometer
106. The fact that universe is expanding was discovered by? Hubble
107. X-rays were discovered by? Roentgen
108. The Nobel prize in physics for the discovery of the law of photoelectric effect was awarded to? Einstein
109. The symbol of gold is? Au
110. Plaster of Paris is produced by heating? Gypsum
111. Which from the following is NOT true about Helium gas? Toxic
112. Which is the largest excretory organ of the body? skin
113. The brain is enclosed in a bony case called? cranium
114. Which is the bone that is present in forelimb? radius
115. Which one is herbivore? cow
116. Which structure helps in transport of water in plants ? xylem
117. The organisms that can make their own food are called ? producers
118. Bacteria are ? prokaryotes
119. Bile juice is secreted by? gall bladder
120. DNA structure was first described by? Watson and Crick
121. Pollination is best defined as the transfer of pollen from an anther to? stigma
122. Movement of the cell against concentration gradient is called ? active transport.
123. One of the following is not a function of bones protein ? synthesis
124. Plants absorb most part of water needed by them through their ? root hairs
125. Highly intelligent mammals are ? dolphin
126. Process of cell division take place by mitosis.
127. Pulses are a good source of ? proteins
128. Plants that grow in dry habitat are called ? xerophytes
129. The simplest amino acid is ? glycine
130. Accumulation of lipid molecules in brain cells lead to ? mental retardation
131. The life and activities of a cell is controlled by? nucleus
132. Flagella are composed of ? microtubules
133. Tobacco mosaic virus was crystallized by ? Stanely
134. Non-enveloped naked viruses are known as ? virions
135. Gram +ve bacteria on treatment with crystal violet dye give colour? purple
136. Malarial parasite is injected into man as ? sporozoites
137. The terms procariotique and eucariotique were proposed by ? Chatton
138. The most common type of asexual reproduction in the fungi is? spore production
139. Outside the thallus of Marchantia there are special structures called ? rhizoids
140. The vascular plants are termed as? tracheophytes
141. In human beings influenza is caused by? virus
142. In many which phylum the body of organisms is usually divided in? three regions
143. called head, thorax, and abdomen? arthropods
144. . Amoeba moves in water with the help of locomotory organs called ? pseudopodia
145. In all coelenterates, endoderm give rise to? digestive system
146. Higher vascular plants are also called ? seed plants
147. The plants which produce embryo but lack vascular tissues and seeds are placed in ? bryophytes
148. Which bone is called beauty bone in women ? clavicle
149. Detachment of myosin head and actin in rigor mortis occurs due to ? autolysis in body
150. Release of the ovum from the ovary is called? ovulation
151. The foetus is protected from the mechanical damage by the? amniotic fluid
152. Rich source of energy in seimen is? glucose
153. Sickle cell anemia was discovered by ? Vernon Ingram
154. Kangaroo has an abdominal pouch known as ? marsupial
155. The utilization of the products of digestion is called? assimilation
156. Parabronchi are present in ? birds
157. The respiratory problem most common in smokers is? emphysema
158. Water potential of pure water is? zero
159. Bean-shaped cells in plants are ? guard cells
160. The normal pH of human blood is ? 4
161. Shrinkage of protoplast due to exosmosis of water is? plasmolysis
162. Atherosclerosis is a major condition leading to? heart attack
163. Villi and microvilli increase ? absorption
164. Splitting of glucose relates to? glycolysis
165. . Reptiles hibernate during? winter
166. Which of the following plants are called arthrophytes? sphenopsids
167. Radio carbon dating is used to find the age of? Fossils
168. Seismology is the science of ? Earthquakes
169. The source of solar energy is ? Nuclear energy
170. fan object is placed midway between two parallel plane mirrors facing each other, then the number of images that appear in mirrors is? Infinite
171. In a vacuum , What will be common among X rays visible light, radio waves ? Amplitude
172. Barometer is used to measure? Atmospheric pressure
173. If u use a microscope to watch smoke particles in still air, you will see them moving about all the time. This phenomenon is called? Brownian movement
174. The mass of a neutron is approximate? Equal to the mass of a proton
175. The spherical shape of raindrops is due to ? Atmospheric friction of air
176. Galvanometer is an instrument For measuring currents of small? magnitude
177. Which of the following has highest frequency? Gamma rays
178. Most important effect of moon on earth is that? Gives light
179. The term ” Meteor” is applied to an interplanetary body, After it enters the earth? atmosphere
180. Newton`s rings are Coloured rings observed around the point of contact of a ? convex lens
181. The heat recieved by earth from the sun is known as? Solar radiation
182. Constellation is Configuration of fixed stars? resembling a figure
183. Which of the following part of the atmosphere is nearest to the earth? Troposphere
184. To an astronaut in space sky looks ? Black
185. Water is heated in a kettle. The inside water is heated by convection. A person sitting near the fire receives heat by ?Convection
186. A time can come when we will be able to design a machine which can go on working for ever without the expenditure of energy. Is it possible ? No
187. Light year is a unit of ? Distance
188. Three elements needed for the healthy growth of plants are ? N, P, K
189. Copper can be converted into gold by ? Artificial Radioactivity
190. In winter an iron pipe feel colder than a wooden window, This is because wood is ? non-Conductor
191. The echo (reflected sound) will be distinctly heard only at ordinary temperatures if the distance of the reflecting surfaces from the source of sound is at least ? 56fft
192. It is possible to recognize a person in the dark by simply hearing his unique voice . It is because of the? pitch
193. When a ray of sunlight enters a dark room, its straight path becomes visible because of dust particles hanging in the air. It is because the light is? Visible
194. A six feet tall lady wants to see her full image in a plane mirror. The minimum length of the mirror will be? 3 feet
195. The principle used in radar is the same as that of Sonar. In radar we use radio waves whereas in sonar we use? Ultrasonic
196. a fission nuclear reaction, a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear reaction is called ? Fusion nuclear reaction
197. Parsec is a unit of ? Distance
198. German Silver is an alloy of ? Cu + Ni
199. The Continent Antarctica lies at the? South pole
200. The temperature of the dead body is? the temperature of the place where it is kept
201. Lactometer is a type of Hydrometer which is used to measure the specific gravity of ? Milk
202. The deepest place on earth is ? Mariana Trench
203. Twinkling of stars is caused by ? refraction of light
204. Magnifying power of a simple microscope can be increased by ? the increasing focal length of the lens
205. What is the approxiate mean distance that separates the sun from the earth? 1480,00,000 km
206. The outer surface of the sun is called ? Photosphere
207. Which planet has the maximum number of satellites? Jupiter
208. What is a light year? The distance traveled by light in 1 year.
209. What are asteroids? Very small planet revolving around the sun
210. What is the temperature at the center of the sun? 20 million k
211. The phase of the moon are partially the result of the? Revolution of the moon about the earth.
212. Constellations referred to as Zodiac are ? Imaginary region that encompasses the path of the planets
213. The height of a geostationary satellite from the surface of the earth is about ? 3600 km
214. What are the three basic units of measurement for the metric system? Metre, liter and gram
215. Clocks, which moves with the velocities comparable with the velocity of light, run? with zero velocity
216. When a gas turns into a liquid, the process is called? condensation
217. Electric current is measured by ? Ammeter
218. Dim-vision in the evening and night results from the deficiency of which one of the following? Vitamin A
219. Diffusion of light in the atmosphere takes place due to ? Dust particles
220. Dental caries are due to ? Bacterial infection
221. The process of digestion begins in? mouth
222. The planet nearest to sun is ? Mercury
223. Blood cells are manufactured by _________of the body? bone marrow
224. If an object gives off its own light, it is said to be? luminous
225. An electric heater would be most likely to produce? R Radiations
226. The Kelvin scale of temperature is called the? absolute scale.
227. The type of radiation that is unaffected by the magnetic field is called? Gamma Rays.
228. In a normal resting man, the rate of heart beat is? 72 per minute.
229. The brightest planet is ? Venus.
230. Gas in children‘s play-balloons going upward is? hydrogen.
231. A study of the chemical composition of the earth‘s crust is called? Geology
232. In a heat engine heat energy is changed into ? Mechanical Energy
233. Frequency of audible sound is ? 20-20KHz.
234. Cheapest source of producing electricity is? Wind and Solar
235. The smallest unit of measurement of wavelength is? nanometers (10^-9 m)
236. Unit of electricity ―Kilowatt Hour
237. Excessive burning of fossil fuels causes? acid rains.
238. Newton is the unit of ? Force
239. Richter scale measures the severity of? Earthquake
240. Planet Mars has two? Moon
241. Our eye is very sensitive to? blue light
242. Astronomers cannot be nominated for the? Noble Prize.
243. Modern Bicycle was invented? by Staley.
244. Coulomb is the unit of? Electric Charge.
245. The fat content in buffalo milk is? 10%
246. The large plates of solar panels are painted? Black.
247. The major component of honey is? Glucose.
248. Severe deficiency of Vitamin D results in? rickets
249. Digestion of food is completed in the? small intestine
250. Wind energy is the _____energy? Kinetic
251. One of the countries through which equator passes is____? Kenya
252. A person with the following blood group are considered to be a universal recipient? AB+
253. The name of the common mineral salt present in sweat is? Sodium Chloride
254. Role of biotechnology in the production of food based on_____? Fermentation
255. The hygrometer is used for measuring the? Humidity of air
256. The chemical name of vinegar is? Dilute acetic acid
257. The orbital period of the planet Mercury around the sun is? 88 days
258. Television signals are converted into light signals by? Photodiode
259. The number of spark plugs needed in a diesel engine is? 0
260. The half-life of a radioactive element is 8-days. How long it takes to reduce it from 10 mg to 5 mg? 8 days
261. In humans, most nutrient molecules are absorbed by the? stomach
262. Sedimentary rocks are? Porous
263. Oasis is associated with? Desert
264. The Continent Antarctica lies at the__________? South pole
265. When a ray of sunlight enters a dark room, its straight path becomes visible because of dust particles hanging in the air. It is because light is_________? Visible
266. The temperature of the dead body is_______________? Temperature of the place where it is kept
267. A six feet tall lady wants to see her full image in a plane mirror. The minimum length of the mirror will be? 3feet
268. The principle used in radar is the same as that of Sonar. In radar, we use radio waves; whereas in sonar we use? Ultrasonic
269. The deepest place on earth is____________? Mariana Trench
270. A body can escape the gravitational pull of the earth if it is thrown up with a velocity of? 7 miles per sec
271. Night vision is possible with the help of___________? Infrared Rays
272. Tibia is a bone found in the____________? Leg
273. What is the main component of bones and teeth? Calcium phosphate
274. Which gland in the human body is called the master gland? Pituitary
275. The main constituent of hemoglobinis___________? Iron
276. Which is the largest organ in the human body? Skin
277. Medulla oblongata is a part of human ___________? Brain
278. Water has maximum density at____________? 4°C
279. The theory of Expanding Universe was first propounded by____________? Hubble
280. The biggest species of the cat family is___________? Tiger
281. Which group of animals hasheterogametic females? Domestic fowl
282. Who proposed this concept “All motion is relative”? Albert Einstein
283. Which month of the calendar year can lack a new moon? February
284. The sunlight can reach a depth of___________meters in the ocean? 100
285. Geiger-Muller counter is used to detect__________? Protons
286. The autonomic nervous system innervate all of these except? Skeletal muscles
287. Vacuum tubes have been replaced by__________? Transistors
288. The number of electrons of a neutral atom is automatically known if one knows the? Atomic number
289. _________ is anything that takes up space and has mass.? Matter
290. What are considered the building blocks of matter? Atoms
291. The protons and neutrons are found in the center of the atom, which is called the ___of the atom? Nucleus
292. The speed of light is __________?300,000 km/s
293. The term ‘Computer’ is derived from__________? Latin
294. Who is the father of Computer? Charles Babbage
295. Who is the father of the Internet? Vint Cerf
296. If a computer has more than one processor then it is known as__________? Multiprocessor
297. The brain of any computer system is___________? CPU
298. The computer that process both analog and digital is called_____?Hybrid computer
299. ALU is____________? Arithmetic Logic Unit
300. RAM Stands for _____? Random Access Memory
301. Software is ______? Untouchable Part
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