General Science Multiple Choice Questions and Answers for Railway Exams

Questions

96 Enzymes are:

A Inorganic compounds

B Moulds

C Micro-organisms

D Proteins

Answer: Option [D]

97 Why does water get cooled in earthen pot and not in a metal or glass pot:

A Earthen walls are bad conductor so heat does not affect the water

B Earthen walls of the pot absorb heat of water

C Earthen walls have pores and water gets evaporated through pores and evaporation takes heat from the water

D None of the above

Answer: Option [C]

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98 Plaster of paris is made from :

A Marble

B Gypsum

C Slaked lime

D Limestone

Answer: Option [B]

99 The chemical used for cooling in refrigeration is :

A CO₂

B NH₄CI

C NH₄OH

D Liquified ammonia

Answer: Option [C]

100 Crops that arer grown for animal feed are called

A Forage crops

B Monsoon crops

C Cash crops

D Wetland crops

Answer: Option [A]