General Science Questions Practice Question and Answer
8 Q: A copper disc has a circular hole in the center when the copper disc is heated then the diameter of the hole is-
468 063bd205d3d35cd0deed357c8
63bd205d3d35cd0deed357c8- 1will remain the samefalse
- 2will decreasetrue
- 3will increasefalse
- 4will depend on other factorsfalse
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Answer : 2. "will decrease"
Explanation :
When a copper disc with a circular hole in the center is heated, the diameter of the hole will generally increase. This phenomenon occurs due to the expansion of the copper material as it is heated. When a material is heated, its particles gain energy and move more vigorously, leading to an increase in volume, and consequently, an increase in the diameter of the hole and the entire disc. The exact amount of expansion would depend on factors such as the temperature increase and the material properties of copper.
Q: The indigenously made Atmospheric Water Generator (AWG) by which Navratna company can make water from the moisture in the atmosphere?
413 063bd1ffb61d62119f1d2be87
63bd1ffb61d62119f1d2be87- 1Gail India Limitedfalse
- 2Bharat Electronics Limitedtrue
- 3Bharat Heavy Electronics Limitedfalse
- 4steel authority of Indiafalse
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Answer : 2. "Bharat Electronics Limited"
Q: Seed therapy is used to treat what?
373 063bd1f1f61d62119f1d2aa96
63bd1f1f61d62119f1d2aa96- 1aidsfalse
- 2tuberculosisfalse
- 3cancertrue
- 4asthmafalse
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Answer : 3. "cancer"
Explanation :
Radiation seed therapy, especially with Cesium-131, is an innovative tool in the fight against cancer.
Q: Due to which behavior of the barometer which measures the atmospheric pressure, "thunderstorm is coming" is predicted?
487 063bd1eb174eba5069d47a5d9
63bd1eb174eba5069d47a5d9- 1the barometer reading rises slowlyfalse
- 2the barometer reading slowly goes downfalse
- 3barometer reading rises suddenlyfalse
- 4barometer reading rises suddenlytrue
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Answer : 4. "barometer reading rises suddenly"
Explanation :
A falling barometric pressure, detected by a barometer, signals an approaching thunderstorm. This drop indicates unstable atmospheric conditions, often preceding stormy weather. Meteorologists use barometric readings to predict thunderstorms, as the decrease in pressure signifies the likelihood of imminent weather disturbances and allows for timely weather warnings.
Q: Which gas is filled in the balloons used to get information about weather related changes?
437 063bd1e6961d62119f1d29689
63bd1e6961d62119f1d29689- 1hydrogenfalse
- 2heliumtrue
- 3oxygenfalse
- 4nitrogenfalse
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Answer : 2. "helium"
Explanation :
Helium: It is an inert gas that is lighter than air. It is non-flammable.
Q: What is the percentage of protein in soybean?
473 063b6c96f28c33f137b3c9548
63b6c96f28c33f137b3c9548- 175%false
- 250%false
- 364%false
- 442%true
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Answer : 4. "42%"
Explanation :
Soybean seeds contain to 40% of crude protein and about 20% of fat, and soybean meal characterized higher content of crude protein- about 40-49%. Soybean meal standardized on 44 and 49% of protein there is on the feed market
Q: What are tissues in the body made of?
421 063b6c8ff61d62119f1a22147
63b6c8ff61d62119f1a22147- 1carbohydratesfalse
- 2fatfalse
- 3vitaminsfalse
- 4proteintrue
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Answer : 4. "protein"
Explanation :
Tissues are formed from the assemblage of cells and intercellular materials in various proportions in which one component predominates. In nervous tissue as an example, nerve cells predominate while in connective tissues such as Ligaments and Tendons, intercellular fibrous materials predominate.
Q: Mitochondria are absent in?
845 063b6c89061d62119f1a21915
63b6c89061d62119f1a21915- 1green algaefalse
- 2bacteriatrue
- 3fungusfalse
- 4yeastfalse
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Answer : 2. "bacteria"
Explanation :
Bacteria are prokaryotes. They are single-celled organisms and microscopic. It does not have well defined nucleus and cell organelles. Thus, mitochondria is absent in them.