Introduction To Mining Engineering - Study Mode
[#211] Equipment used in mining of placer deposits is
Correct Answer
(D) riffle box
[#212] For the purpose of adequate ventilation, in every ventilating district not less than A cu.m per minute of air per daily tonne output is required to pass along the last ventilation connection. A is given by
Correct Answer
(B) 2.5
[#213] The range of application of hydraulicking is mostly limited to
Correct Answer
(B) placers
[#214] What should be the minimum pressure to be maintained at the nozzle in hydraulic mining operation?
Correct Answer
(D) 40 - 100 kgf/cm 2
[#215] The ratio of current assets to current liability is known as
Correct Answer
(C) liquidity