Mining Machinery - Study Mode
[#236] The branch road devioting at angle of not more than . . . . . . . . off the main road for employing direct rope haulage.
Correct Answer
(B) 40
[#237] The cage chains and D links made of . . . . . . . .
Correct Answer
(A) Wrought iron
[#238] The space factor for stranded rope is . . . . . . . .
Correct Answer
(C) 50 - 60%
[#239] Untwisting of strands prevented by . . . . . . . .
Correct Answer
(D) Adjacent ropes are of opposite lays
[#240] If the failure of detaching hook to hold the cage, the next safety device may be fitted in head gear is . . . . . . . .
Correct Answer
(A) Safety catches