What is meant by vane efficiency.
A. The ratio of actual head to the theoritical head
B. The ratio of the input head to Eulers head
C. The ratio of input head to input head
D. The ratio of total head developed to the velocity head
Answer: Option B
A. The ratio of actual head to the theoritical head
B. The ratio of the input head to Eulers head
C. The ratio of input head to input head
D. The ratio of total head developed to the velocity head
Answer: Option B
Which of the following prime characteristic the nonel blasting has?
A. It has greater shock to the surrounding
B. It is noiseless in character
C. It has tremendous effect on explosive column
D. It can not be used in a place where there is a chance of stray current
A. Fire, Explosion
B. Gas, Outburt
C. Rockburst, bump
D. None
Cyclone, bag filter and scrubber can be used for control.
A. Water pollution
B. Soil pollution
C. Air pollution
D. Noise pollution
A two phase system in which an inner or dispersed phase is distributed in an outer called
A. Emulsion
B. Slurry
C. Explosion
D. Erosion
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