Generally the stopper used for drilling . . . . . . . . holes.
A. Downward
B. Upward
C. Horizontal
D. Slopy
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The penetration of borer type of continuous miner . . . . . . . . m/min.
A. 0.1 - 0.2
B. 0.3 - 0.6
C. 0.7 - 0.9
D. 1 - 2
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In which type of rope haulage the rope passes over the set of tubs called . . . . . . . .
A. Under rope haulage
B. Tail rope
C. Over rope haulage
D. Gravity
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In wedge capping, the wedges have machined groove curved to fit the rope surface and taper approximately . . . . . . . . upon which the 'U' shaped strap is held.
A. 1 in 10
B. 1 in 15
C. 1 in 20
D. 1 in 25
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HP of Electric motor model 62.5 Auger drill is . . . . . . . .
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In shearer machine, the following component is employed.
A. Cowl
B. Cutting chain
C. Loading apron
D. Static set bit
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Vaccum gauge fitted on . . . . . . . . branch.
A. Delivery
B. Suction
C. Eye
D. Impellar
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Double drum rope haulage provides . . . . . . . . braking.
A. Hard
B. Low
C. Easy
D. All of these
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On a road which dips in bye the tension bogey should be placed at the . . . . . . . . end of haulage road.
A. Top end
B. Out by end
C. Bottom
D. Side
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Plain carbon steel used in wire rope should have high . . . . . . . . strength.
A. Torsion
B. Ductile
C. Tensile
D. Compressive
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The type of rope which relives the internal stresses . . . . . . . .
A. Preformed rope
B. Locked coil left hand lay
C. Right hand lay
D. Equal lay
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In dint header machine the following component is employed.
A. Cowl
B. Cutting chain
C. Loading apron
D. Static set bit
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The modification of direct haulage system is . . . . . . . .
A. Main and tail
B. Gravity
C. Double drum balanced
D. Endless
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The ropes used for flexible guides . . . . . . . .
A. Locked coil
B. Fibre strand rope
C. Flattend strand
D. None
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The quantity of water delivered by a given pump varies directly as the . . . . . . . . of impeller.
A. Pressure developed
B. Power required
C. Square of the speed
D. Peripheral speed or r.p.m.
Select an option to see the answer and solution.
Guide rope comes under
A. Standing rope
B. Running rope
C. Standard rope
D. None
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The rocker shovel equipment, the power source in Indian mining practice is
A. Battery
B. Compressed air
C. Electricity Max Voltage 6.6 KV AC
D. Electricity Max Voltage 1.1 KV AC
Select an option to see the answer and solution.
Coal drill rated with . . . . . . . .
A. Hourly
B. Two hourty
C. 1 2 1 hourly
D. Half hourly
Select an option to see the answer and solution.
The direct rope haulage can also serves in . . . . . . . . roads.
A. Branch
B. Very steep
C. Level
D. Steeply curved
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Two traction motors of . . . . . . . . kw each of carvo loader 310.
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