Basic Science Practice Question and Answer
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Q: When a man enters a dark room with light, he sees nothing for some time. Later he begins to appear, because?
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601404df2a5c813e157f5cce- 1The iris of his eye shrinkstrue
- 2The iris of his eye spreadsfalse
- 3The distance between the lens and retina of his eye increasesfalse
- 4The length of his eye lens increasesfalse
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Answer : 1. "The iris of his eye shrinks"
Q: Which of the following is not easily oxidized at high temperature?
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5f86a3f4dcf12a01a141541a- 1Insulatorfalse
- 2Alloytrue
- 3Semi-conductorfalse
- 4conductorfalse
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Answer : 2. "Alloy"
Q: Leaving of the following in ponds and wells helps in controlling mosquitoes?
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5f746c08a921aa16e68c30e5- 1crabfalse
- 2Dogfishfalse
- 3Gambusia fishtrue
- 4snailfalse
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Answer : 3. "Gambusia fish"
Q: Which gas is used in the food packaging industry to prevent chips from getting oxidized?
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5fa11416e4a5020b770e12c6- 1Nitrogentrue
- 2Hydrogenfalse
- 3Heliumfalse
- 4Carbonfalse
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Answer : 1. "Nitrogen"
Q: Which one of the following is an alloy?
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5f9103db9e18f97b703f9c7b- 1Zincfalse
- 2Steeltrue
- 3leadfalse
- 4aluminumfalse
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Answer : 2. "Steel"
Q: Who invented television?
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6014085b2a5c813e157fa078- 1J.R. L. Bairdtrue
- 2Macmillanfalse
- 3James Wattfalse
- 4None of thesefalse
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Answer : 1. "J.R. L. Baird"
Q: What is Fathom?
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5f912d18c011be03879fe566- 1is a fishfalse
- 2Name of a plant isfalse
- 3A vessel is calledfalse
- 4is a measuretrue
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Answer : 4. "is a measure"
Q: What chemical substance is present in bones and teeth, what is it called?
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601408f65beea84b8ecf1c6c- 1calcium chloridefalse
- 2calcium boratefalse
- 3calcium phosphatetrue
- 4calcium sulfatefalse
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Answer : 3. "calcium phosphate"
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