General Science - Mock Test 29

Question 281

For which one among the following diseases there is no vaccine till date?

A) Measles B) Tetanus C) Malaria D) Mumps

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Question 282

Fly wheel is an important part of a steam engine because it?

A) gives strength to the engine B) accelerates the speed of the engine C) helps the engine in keeping the speed uniform D) decreases the moment of inertia

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Question 283

Essential oils contain?

A) Steroids B) Porpoise C) Terpenoids D) Alkaloids

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Question 284

Excretion in Hemichordates takes place by?

A) Metanephron B) Mesonephron C) Glomerulus D) Pronephron

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Question 285

Flowerless plants are termed as ?

A) Phanerogams B) Bryophytes C) Thallophytes D) Cryptogams

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Question 286

Fixation of nitrogen means?

A) Manufacture of nitrogen B) Conversion of atmospheric nitrogen into useful compounds C) Liquefication of nitrogen D) Conversion of nitrogen into nitric acid

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Question 287

Excess amount of absorbed water by plants is liberated out by?

A) ) Diffusion B) ) Evaporation C) ) Transpiration D) ) Osmosis

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Question 288

Electrostatic precipitator is used to control?

A) Radio-active Pollutants B) Chemical Pollutants C) Water Pollutants D) Air Pollutants

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Question 289

Diamond is harder than graphite because of?

A) Difference of layers of atoms B) Tetrahedral structure of diamonds C) Difference of crystaline structures D) None of these

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Question 290

Due to its ability to dissolve glass, which acid is not kept in glass container ?

A) Hydrofluoric Acid B) Hydrochloric Acid C) Sulphuric Acid D) Nitric Acid

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