Which of the indigenous firm do manufacture SDL& LHD in India?
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Mining Engineering · all questionsMining Machinery
Mining Machinery
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The mass of a rope depends upon the . . . . . . . . of steel.
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Which of the following can be used safely right upto the face of coal mine
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In coned socket type capel the metal poured is . . . . . . . .
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Which metal is used for the purpose of capping of winding ropes?
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Ropes used for drag line.
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The wire rope which offers better wearing surface and more resistant to bending fatigue called . . . . . . . .
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For AFC open-bottom pans are preferable to closed-bottom pans because
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Preshaping the wires and strands in to exact helical positions, they assumed in the finished shape called . . . . . . . .
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The ropes used for winding; haulage, coal cutting are the examples of . . . . . . . .
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Right hand ordinary lay wire rope construction is most useful for
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A 1 tonne mine car travelling at a constant speed of 10 km/h collides with a stationary buffer and comes to rest. If the buffer spring stiffness is 200 kN/m, the maximum compression in the spring in mm is
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Sillicon percentage in wire ropes . . . . . . . .
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All the layers of wires have same pitch or length of lay called . . . . . . . .
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The rate at which a machine component oscillates is called
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Method of joining two wire ropes permanently without using special fittings or attachments is known as
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A direct rope haulage pulls 8 tubs loaded with coal through an incline of length 500 m having an inclination of 1 in 6. Consider the following additional data.
Capacity of tub = 1.0 tonne.
Tare weight of tub = 500 kg
Hauling speed = 9 km per hour
Coefficient of friction between wheel and rail =
Coefficient of friction between rope and drum =
Mass of rope per meter = 1.5 kg
The minimum power required to haul the tubs in kW is
Capacity of tub = 1.0 tonne.
Tare weight of tub = 500 kg
Hauling speed = 9 km per hour
Coefficient of friction between wheel and rail =
Coefficient of friction between rope and drum =
Mass of rope per meter = 1.5 kg
The minimum power required to haul the tubs in kW is
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Which of the following centre core looks like an independent wire rope?
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The series of iron container of scraper chain conveyor over which the flight with chain moves is known as
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It is the ratio between the interruptions to the motion of a car along a straight level track with constant speed to the total weight of car
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