Basic Science Practice Question and Answer
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Q: Who invented the bifocal glasses?
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606d79dadac3665e58aa61fa- 1Thomas Alva Edisonfalse
- 2Benjamin franklintrue
- 3Evangelistafalse
- 4Isaac Newtonfalse
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Answer : 2. "Benjamin franklin"
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: Wind speed is measured by which of the following instruments-
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5fa5159b9e3c9b0bcb6ff59c- 1Barometerfalse
- 2Windvenfalse
- 3Anemometertrue
- 4Rotameterfalse
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Answer : 3. "Anemometer"
Q: What is the reason that the ball bounces higher at a higher place?
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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"
Q: Our eyes are able to detect light due to the presence of the which of the following receptor?
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5ff585659fc6f75b3f6126a4- 1Phonoreceptorsfalse
- 2Thigmoreceptorsfalse
- 3Photoreceptorstrue
- 4Gustatoreceptorsfalse
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Answer : 3. "Photoreceptors"
Q: Gun powder is a mixture of?
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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: Who was the first Indian astronaut-
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5f74691e4637db7328336c8b- 1Rakesh Sharmatrue
- 2Yuri Gagarinfalse
- 3Kalpana Chawlafalse
- 4Sunita Williamsfalse
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Answer : 1. "Rakesh Sharma"
Q: Which acid is used as a dehydrating agent?
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611b609bccbc2b477b6dbfa3- 1hydrochloric acidfalse
- 2sulfuric acidtrue
- 3acetic acidfalse
- 4nitric acidfalse
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Answer : 2. "sulfuric acid"
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