Basic Science Practice Question and Answer
8 Q: Which of the following acids is used in car batteries?
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5ee99605109b5d6e01623341- 1Nitric acidfalse
- 2Hydrochloric acidfalse
- 3Sulphuric acidtrue
- 4Hydrofloric acidfalse
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Answer : 3. "Sulphuric acid"
Explanation :
sulphuric acid is used in car batteries.
Q: Reading of a barometer going down is an indication of
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5edefe488c4c964f73d38f0f- 1rainfalltrue
- 2snowfalse
- 3stormfalse
- 4intense heatfalse
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Answer : 1. "rainfall"
Explanation :
Low pressure – when reading of the barometer is lower than inHg, this is considered as low air pressure, which is associated with warm air and rainstorm. So, clearly, a falling barometer indicates bad weather is ahead.
Q: The instrument used to examine a person’s digestive tract is called_____.
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5ee868ca109b5d6e015e6447- 1Oscilloscopefalse
- 2Microscopefalse
- 3Endoscopetrue
- 4Radiographfalse
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Answer : 3. "Endoscope"
Explanation :
A flexible tube called an endoscope is used to view different parts of the digestive tract. When passed through the mouth (as shown on the left), an endoscope can be used to examine the esophagus, stomach, and some of the small intestine.
Q: World Environmental Day is celebrated every year on:
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5ee9990b109b5d6e0162399c- 15 Mayfalse
- 25 Junetrue
- 35 Julyfalse
- 418 Julyfalse
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Answer : 2. "5 June"
Explanation :
World Environment Day is celebrated on June 5 every year to remind people to save nature and the earth by stopping their non-environmentally friendly activities. Let's know more about this day, its history, significance, and theme.
Q: The man who is specialist in wine making is called as ? 4559 35b5cc736e4d2b4197774f865
5b5cc736e4d2b4197774f865- 1Wenologistfalse
- 2Grapologistfalse
- 3Oenologisttrue
- 4Nonefalse
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Answer : 3. "Oenologist"
Explanation :
Answer: C) Oenologist Explanation: Oenology is the science and study of wine and winemaking. So person who is specialist in that is called as Oenologist.
Q: Which of the gas is not known as green house gas?
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5edef8a5d1536a09d5745f35- 1Methanefalse
- 2Hydrogentrue
- 3Nitrous oxidefalse
- 4Carbon dioxidefalse
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Answer : 2. "Hydrogen"
Explanation :
Whereas oxygen, nitrogen, and argon are not examples of greenhouse gases.
Q: In the following that is not related to gases low.
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5ee8665d109b5d6e015e58ea- 1Boyle’s lawfalse
- 2Avogadro’s lawfalse
- 3Len'z lawtrue
- 4Charles’s lawfalse
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Answer : 3. "Len'z law"
Q: Tungsten resistance to temperature rise?
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5ef41568bea49d16b47d39a1- 1decreasesfalse
- 2increasestrue
- 3there is no changefalse
- 4All thesefalse
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Answer : 2. "increases"
Explanation :
At high temperatures, the tungsten filament gets hot and atoms in the filament vibrate more. The electrons in the current now collide more with the atoms & more energy is needed to push the current through the filament. Hence, the resistance of tungsten increases with temperature.