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Question
Pick out the correct statement?
Options:
A .  Angle of repose is always greater than the angle of slide
B .  A hopper is a small bin with a sloping bottom
C .  A silo is a short height vessel of very large diameter used for the storage of high volatile matter coal
D .  Pine oil is used as a ‘modifying agent’ (for activating or depressing the adsorption of filming agents) in froth floatation process
Answer: Option B
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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