Basic Science Practice Question and Answer
8 4 Q:
5f912e707793eb35d72d8103 4 Q:
5fa5159b9e3c9b0bcb6ff59c 4 Q:
64a68f058ecb104cc62b09af Answer : 3. "7"
4 Q:
611b64b76d0fd147810fb65f 4 Q:
604de8dad4491561f1df586e 4 Q:
5feafdd900e3f71b828c00f8 4 Q:
606d79dadac3665e58aa61fa 4 Q:
601403a92a5c813e157f51b3
Q: Is the plaster of Paris obtained?
1441 05f912e707793eb35d72d8103
5f912e707793eb35d72d8103- 1sodium bicarbonatefalse
- 2Gypsumtrue
- 3Ureafalse
- 4Carbonfalse
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Answer : 2. "Gypsum"
Q: Wind speed is measured by which of the following instruments-
1439 05fa5159b9e3c9b0bcb6ff59c
5fa5159b9e3c9b0bcb6ff59c- 1Barometerfalse
- 2Windvenfalse
- 3Anemometertrue
- 4Rotameterfalse
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Answer : 3. "Anemometer"
Q: How many colours does sunlight consist of?
1437 064a68f058ecb104cc62b09af
64a68f058ecb104cc62b09af- 13false
- 22false
- 37true
- 45false
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Answer : 3. "7"
Explanation :
1. Sunlight has seven colors.
2. Seven colours – violet, indigo, blue, green, orange, yellow and red.
3. Violet has the shortest wavelength, while red has the longest wavelength.
4. The seven colours contained in sunlight can often be seen in rainbows.
5. Rainbows are formed when sunlight passes through raindrops.
Q: Gun powder is a mixture of?
1428 0611b64b76d0fd147810fb65f
611b64b76d0fd147810fb65f- 1soil and TNTfalse
- 2sulphur, clay and charcoalfalse
- 3saltpeter, sulfur and charcoaltrue
- 4TNT and charcoalfalse
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Answer : 3. "saltpeter, sulfur and charcoal"
Q: What are glyceridia species used?
1425 0604de8dad4491561f1df586e
604de8dad4491561f1df586e- 1in the form of green manurefalse
- 2Green leaf as composttrue
- 3Both A and Bfalse
- 4None of thesefalse
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Answer : 2. "Green leaf as compost"
Q: Which of the following is not a source of air pollution?
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5feafdd900e3f71b828c00f8- 1Automobile exhaustfalse
- 2Burning of firewoodfalse
- 3Windmilltrue
- 4Power plantfalse
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Answer : 3. "Windmill"
Q: Who invented the bifocal glasses?
1420 0606d79dadac3665e58aa61fa
606d79dadac3665e58aa61fa- 1Thomas Alva Edisonfalse
- 2Benjamin franklintrue
- 3Evangelistafalse
- 4Isaac Newtonfalse
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Answer : 2. "Benjamin franklin"
Q: What is the reason that the ball bounces higher at a higher place?
1418 0601403a92a5c813e157f51b3
601403a92a5c813e157f51b3- 1Because the air pressure is higher at higher places than at the plainsfalse
- 2Because the atmosphere is sparse at high places, the ball faces less resistancefalse
- 3Because the force of gravity is low at high placestrue
- 4Because the atmosphere is pure at high placesfalse
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Answer : 3. "Because the force of gravity is low at high places"
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