Q561
Open questionEach seam should have at least two out lets to surface separated by a minimum of . . . . . . . . meters at any point.
Select an option to see the answer and solution.
Mining Engineering · all questionsDrilling and Blasting
Drilling and Blasting
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
911
Questions
29/46
Page
Pick an option on a question to see the right answer and solution.
Q562
Open questionNumber of cylinders of oxygen in PT 60 pulmotor.
Select an option to see the answer and solution.
Q563
Open questionThe quantity survey can be made in gassy mines of II degree once in every . . . . . . . . days.
Select an option to see the answer and solution.
Q564
Open questionIn smoke generator for measuring air velocity the time taken by the smoke to travel . . . . . . . . m recorded.
Select an option to see the answer and solution.
Q565
Open questionPrimex is a mixture of
Select an option to see the answer and solution.
Q566
Open questionPyrolusite is used in
Select an option to see the answer and solution.
Q567
Open questionThe choice of site of an incline is limited to . . . . . . . . region.
Select an option to see the answer and solution.
Q568
Open questionBecause of leakage the total quantity of air that reaches the working faces is only . . . . . . . . of that circulated by the main fan.
Select an option to see the answer and solution.
Q569
Open questionA higher NVP is produced in the workings in . . . . . . . .
Select an option to see the answer and solution.
Q570
Open questionThe presence of angle of yaw for the animometer.
Select an option to see the answer and solution.
Q571
Open questionThe ignition temperature of betuminous coal is nearly . . . . . . . .°C.
Select an option to see the answer and solution.
Q572
Open questionThe maximum number of shots that a shotfirer may fire in any shift by using a multi-shot exploder
Select an option to see the answer and solution.
Q573
Open questionThe coefficient of friction in unlined roadway . . . . . . . .
Select an option to see the answer and solution.
Q574
Open questionIn which regulation of CMR 2017, the provisions of dealing with misfires are given?
Select an option to see the answer and solution.
Q575
Open questionSamples of coal dust in the mine with stone dust should be taken at regular intervals of . . . . . . . . days.
Select an option to see the answer and solution.
Q576
Open questionThe unit of resistance in SI units is . . . . . . . .
Select an option to see the answer and solution.
Q577
Open questionThe weight of proto mark IV apparatus . . . . . . . .
Select an option to see the answer and solution.
Q578
Open questionThe main transporting medium where high outputs are to be handled.
Select an option to see the answer and solution.
Q579
Open questionThe minimum insulation resistance of medium power cable is . . . . . . . .
Select an option to see the answer and solution.
Q580
Open questionCentrifugal fan occupies . . . . . . . . space for installation.
Select an option to see the answer and solution.