General Science Multiple Choice Questions and Answers for Railway Exams

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]
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 :
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]


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