1. Space factor of locked coil rope is . . . . . . . .
2. The Alluminium body of the coal drill weights . . . . . . . .
3. Expected out put from a continuous miner in underground.
4. The rope speed is generally . . . . . . . . km/h in direct rope haulage.
5. Drill rod fits in drill chuck by . . . . . . . . joint the bit attached to the rod by . . . . . . . .
6. For hoisting in deep mines, the type of drum employed as it reduces the net starting torque.
7. If U and V are the velocities of water at two points in a pipe line, the difference in pressure energy to water is P =
8. The head volume curve is considered to be true characteristic of the pump as it depends only on the . . . . . . . .
9. The type of motor employed in endless haulage . . . . . . . .
10. Triangular distribution plate is made of . . . . . . . .
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