Everyday Science MCQs

Page No. 55

In which system of units, gas bills are charged?


aSI

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bCGS

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cBTU

✓


dCNG

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View Answer BTU

In BTU system, one BTU is equal to__________?


a2055 Joule

✖


b1155 Joule

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c2155 Joule

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d1055 Joule

✓


View Answer 1055 Joule

The second most abundant metal found in the earth’s crust is_____________?


aSilicon

✓


bAluminium

✖


cSodium

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dCacium

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View Answer Silicon

The gases which are used by drivers as an artificial atmosphere are helium and_____________?


aNitrogen

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bOxygen

✓


cNeon

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dCarbon monoxide

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View Answer Oxygen

Air contains volume of carbon dioxide approximately?


a33%

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b3%

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c0.03%

✓


d0.3%

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View Answer 0.03%

Nitrogen occurs in plant and animals in the form of ___________?


aMinerals

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bFats

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cCarbohydrates

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dProteins

✓


View Answer Proteins

As the temperature of ice rises, the ice melts and its density?


aIncreases

✓


bDecreases

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cRemain constant

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dIncreases upto 10C

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View Answer Increases

In blood, the percentage of water is___________?


a75%

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b85%

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c90%

✓


d95%

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View Answer 90%

Coke is made by heating coal in the absence of air at__________?


a1300 °C

✓


b700 °C

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c900 °C

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d1700 °C

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View Answer 1300 °C

Why are soft drink made with chilled water rather than water at room temperature?


aIngredients dissolve better in chilled water

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bChilled water enhances the taste

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cChilled water attracts more carbon dioxide

✓


dChilled water is more hygienic

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