General Science Questions Practice Question and Answer
8 4 Q:
5dbc41a611c6137399690ae4 4 Q:
5db92b1aaec31117bb89192b 4 Q:
5ebe0f7c106f3017d501e6b6 4 4 Q:
5de508d04a95623fc07966d0 4 Q:
5dc22a1296420169a020ca60 4 Q:
5edf132c71a5bd73c30dc5e8 4 Q:
5f61c9fcd7fb716774bc0fab Answer : 4. "120 dB"
Q: The atoms of Germanium, Arsenic, Selenium and Bromine contain _____ shells.
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5dbc41a611c6137399690ae4- 14true
- 23false
- 35false
- 47false
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Answer : 1. "4"
Q: The chemical name of baking soda is
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5db92b1aaec31117bb89192b- 1Sodium carbonatefalse
- 2Sodium bicarbonatetrue
- 3Sodium chloridefalse
- 4Sodium nitratefalse
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Answer : 2. "Sodium bicarbonate"
Q: Why does a Blackboard appear black in colour?
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5ebe0f7c106f3017d501e6b6- 1It reflects black colourfalse
- 2It absorbs black colourfalse
- 3It reflects all colourfalse
- 4It absorbs all colourtrue
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Answer : 4. "It absorbs all colour "
Q: Which is used in preparation of dynamite ? 2951 05c2dbce0bc106c237a22c17b
5c2dbce0bc106c237a22c17b- 1glyceroltrue
- 2ethyl alcoholfalse
- 3methyl alcoholfalse
- 4glycolfalse
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Answer : 1. "glycerol"
Q: The organ which stores carbohydrates as glycogen in the human body is
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5de508d04a95623fc07966d0- 1Intestinefalse
- 2Stomachfalse
- 3Pancreasfalse
- 4Livertrue
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Answer : 4. "Liver "
Q: A rectifier is an electronic device used to convert
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5dc22a1296420169a020ca60- 1AC voltage into DC voltagetrue
- 2DC voltage into AC voltagefalse
- 3Sinusoidal pulse into square pulsefalse
- 4None of the abovefalse
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Answer : 1. "AC voltage into DC voltage "
Q: The purpose of Choke in tube light is
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5edf132c71a5bd73c30dc5e8- 1To decrease the currentfalse
- 2To increase the currentfalse
- 3To decrease the voltage momentarilyfalse
- 4To increase the voltage momentarilytrue
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Answer : 4. "To increase the voltage momentarily"
Q: The maximum limit in decibels of sound intensity above which a person cannot hear—
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5f61c9fcd7fb716774bc0fab- 150 dbfalse
- 270 dbfalse
- 385 dbfalse
- 4120 dBtrue
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Answer : 4. "120 dB"
Explanation :
For short durations of time, sounds up to a 120 dB are bearable and also considered safe by the world health organization, but again, listening to sounds at such high frequencies at regular intervals of stretched time durations is totally unsafe and makes the ears vulnerable to permanent hearing loss.
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