Q261
Open questionWhich is used for raising and lowering of rods of square section
Select an option to see the answer and solution.
Mining Engineering · all questionsCoal Mining
Coal Mining
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
504
Questions
14/26
Page
Pick an option on a question to see the right answer and solution.
Q262
Open questionHydrogenation of tar obtained by the process of
Select an option to see the answer and solution.
Q263
Open questionPercussive drilling methods classified in to
Select an option to see the answer and solution.
Q264
Open questionShock bumps occurs in
Select an option to see the answer and solution.
Q265
Open questionFor adoption of hydraulic sand stowing, the availability of sand from rivers flowing near the collieres within . . . . . . . . Km.
Select an option to see the answer and solution.
Q266
Open questionControlling the course of bore hole to follow predetermined path and complete the hole at desired surface location called
Select an option to see the answer and solution.
Q267
Open questionLength of rooms and room and pillar mining
Select an option to see the answer and solution.
Q268
Open questionIn B.G the entire operation of drilling, blasting takes about
Select an option to see the answer and solution.
Q269
Open questionCoincident verticality of pillars in multisection working is not required to be maintained when the strata are inclined at an angle of more than . . . . . . . .
Select an option to see the answer and solution.
Q270
Open questionImproved technique of removal of core during drilling without raising of drill rods
Select an option to see the answer and solution.
Q271
Open questionMaximum voltage required for longwall face.
Select an option to see the answer and solution.
Q272
Open questionBore hole survey means
Select an option to see the answer and solution.
Q273
Open questionTubbing thickness depends on . . . . . . . . to withstand
Select an option to see the answer and solution.
Q274
Open questionIn third degree gassy mines the isolation stoppy should be
Select an option to see the answer and solution.
Q275
Open questionClay anger used in
Select an option to see the answer and solution.
Q276
Open questionMaximum roof exposure for stowing is
Select an option to see the answer and solution.
Q277
Open questionThe goaf packed by introducing the material in a stream of compressed air is called . . . . . . . .
Select an option to see the answer and solution.
Q278
Open questionPercussive drilling the rocks is broken by following action
Select an option to see the answer and solution.
Q279
Open questionIn horizon mining laterals are driven
Select an option to see the answer and solution.
Q280
Open questionVentilation by mechanical means is provided in sinking shaft exceeds at a depth of
Select an option to see the answer and solution.