Which hold the water in the delivery column, if the pump stops, when the main valve is open.
A. Retaing valve
B. Sluice valve
C. By pass valve
D. Air cock
Answer: Option A
A. Retaing valve
B. Sluice valve
C. By pass valve
D. Air cock
Answer: Option A
Coal cutting machine ropes are . . . . . . . . wire rope core.
A. Fibre
B. Steel strand core
C. Independent wire rope
D. All
The joining of ropes is termed as . . . . . . . .
A. Rope stitching
B. Rope splicing
C. Rope Stretching
D. Rope volcanizing
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