Everyday Science MCQs

Page No. 55

In which system of units, gas bills are charged?


aSI


bCGS


cBTU


dCNG


View Answer BTU

In BTU system, one BTU is equal to__________?


a2055 Joule


b1155 Joule


c2155 Joule


d1055 Joule


View Answer 1055 Joule

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


aSilicon


bAluminium


cSodium


dCacium


View Answer Silicon

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


aNitrogen


bOxygen


cNeon


dCarbon monoxide


View Answer Oxygen

Air contains volume of carbon dioxide approximately?


a33%


b3%


c0.03%


d0.3%


View Answer 0.03%

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


aMinerals


bFats


cCarbohydrates


dProteins


View Answer Proteins

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


aIncreases


bDecreases


cRemain constant


dIncreases upto 10C


View Answer Increases

In blood, the percentage of water is___________?


a75%


b85%


c90%


d95%


View Answer 90%

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


a1300 °C


b700 °C


c900 °C


d1700 °C


View Answer 1300 °C

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


aIngredients dissolve better in chilled water


bChilled water enhances the taste


cChilled water attracts more carbon dioxide


dChilled water is more hygienic



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