Home/Volume-3/Rope Haulages & Tracks Volume-3 Rope Haulages & Tracks Admin03/08/20240 13 Less than a minute Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 0% Rope Haulages & Tracks Rope Haulages & Tracks 1 / 46 1. The simplest system of haulage system for raising the loads? Direct rope haulage Endless rope haulage Main tail rope haulage Gravity 2 / 46 2. The gradient suitable for direct rope haulage is steeper than? 1 in 10 1 in 30 1 in 15 1 in 3 3 / 46 3. The general speed in rope haulage is? 2 to 3 Km/h 8 to 12 km/h 3 to 7 km/h 15 km/h 4 / 46 4. The limiting gradient for endless rope haulage is? 1 in 10 1 in 4 1 in 6 1 in 15 5 / 46 5. The rope speed in the endless rope haulage is? 3 to 7 km/h 8 to 12 km/h 15 km/h 2 to 3 Km/h 6 / 46 6. Where continuous movement of loaded and empty tubs are necessary the rope haulage suitable is? Gravity Main tail rope haulage Direct rope haulage Endless rope haulage 7 / 46 7. The surface of the drive pulley in endless haulage is? Curved Tapered Flat Grooved 8 / 46 8. In endless rope haulage the C.I sheets having the tapering of? 1 in 6 1 in 10 1 in 8 1 in 4 9 / 46 9. The correct place for tension bogey is? None At the point where slack rope is most likely to occur Near the haulage engine Any point on the level roadway 10 / 46 10. Smalman clip is the device used to attach? Main tail rope haulage Endless rope haulage Gravity Direct rope haulage 11 / 46 11. In over rope endless haulage system ...... is used for attaching the tubs? Cam clip Smallman clip Screw clip Lashing chain 12 / 46 12. The system of rope haulage most suitable for undulating roadways and where it is not possible or desirable to maintain two tracks is? Gravity Direct rope Main and tail Endless rope 13 / 46 13. In main and tail rope haulage the length of the tail rope is.....of the haulage plane? 1/2 times 2 times Equal 4 times 14 / 46 14. The system of rope haulage suitable with least cost to lower the loads to feed to the haulage at lowest level is? Gravity Endless rope haulage Direct rope haulage Main tail rope haulage 15 / 46 15. The factor of safety for the rope haulage is? 5 to 6 9 10 6 to 7 16 / 46 16. The weight of the tracks for locomotives of more than 10 te capacity? 10 kgf/m 16 kgf/m 28 kgf/m 18 kgf/m 17 / 46 17. The distance between two adjacent sleepers should not exceed? 0.85 m 0.6 m 1 m 0.5 m 18 / 46 18. For tubs of 1.1 cu.m capacity the rail section should be of minimum weight of? 16 kgf/m 18 kgf/m 10 kgf/m 28 kgf/m 19 / 46 19. The general track gauge for 1.1 cu.m tub? 0.6 m 0.3 m 1 m 0.9 m 20 / 46 20. The load on the tub axle; haulage speed; wet or dry condition of the mine will decide the selection of? Type of ballasting Weight and section of the rail Type of haulage Width of the track 21 / 46 21. The track gauge for locomotive is? 1.2 to 1.3 m 1 to 1.2 m 0.9 to 1 m 0.7 to 0.9 m 22 / 46 22. The purpose of the sleeper and ballast in the track is? Distribute the intense bearing pressure of wheels on the rails over a sufficient area of floor To strengthen the tracks To prevent the tubs to fell down None 23 / 46 23. The size of the ballast used in rail track is? 40 to 50 mm 30 to 40 mm 60 to 80 mm 50 to 60 mm 24 / 46 24. For the speed up to 13 kmph the radius of any curve in a main haulage road should be? Not less than 30 m Not more than 20 times longest rigid wheel base of any vehicle in the train Not less than 20 times longest rigid wheel base of any vehicle in the train Not less than 50 m 25 / 46 25. For bending the rail to suitable curvature the device used is? Jokey Jim crow Retaining key Creeper 26 / 46 26. The safety device consists of steel rail or wooden block pivoted at the end which is used for arresting backward runaway for tubs is? Stop block Drop warwick Back stay Back catch 27 / 46 27. The safety device consists of a wooden beam or block lying across the rails to prevent backward running of tubs is? Back catch Back stay Stop block Drop warwick 28 / 46 28. The safety device used behind an ascending set of tubs on direct or endless haulage to arrest runaway of tubs is? Back catch Drop warwick Back stay Runaway switch 29 / 46 29. The safety device used for arresting the forward runaway of tubs is? Drop warwick Back catch Runaway switch Back stay 30 / 46 30. The safety device is used effectively in case of direct rope haulage in the event of runaway of a set of tubs? Back stay Stop block Drop warwick Stop block with runaway switch 31 / 46 31. If the track gauge is more than 0.6 m then......... are preferred? Circular Rectangle pillars Square pillars Rhombus pillars 32 / 46 32. The haulage used up to 35 hp is called? Tugger haulage Gravity haulage Endless haulage Rope haulage 33 / 46 33. The limiting gradient for the tugger haulage is? 1 in 6 1 in 4 1 in 15 1 in 10 34 / 46 34. The size of direct rope haulage used underground generally ? More than 250 HP Less than 250 HP Less than 200 HP Less than 150 HP 35 / 46 35. The direct rope haulage with 150 HP the reasonable output is ? 800 te/day 1000 te/day 600 te/day 400 te/day 36 / 46 36. The maximum length of the rope haulage is? 450 m 800 m 1000 m 600 m 37 / 46 37. High capacity endless rope haulage may give ...? 600 te/day 1000 te/day 800 te/day 400 te/day 38 / 46 38. The maximum length of the endless rope haulage is? 450 m 800 m 600 m 1000 m 39 / 46 39. Limiting gradient for the main and tail rope haulage is? 1 in 3 1 in 8 1 in 6 1 in 10 40 / 46 40. To slow down the tubs the device used is? Hydraulic tub retarder Runaway switch Back stay Sprags 41 / 46 41. Steel ropes can be used for winding up to a maximum depth of? 400 m 100 m 300 m 200 m 42 / 46 42. In locomotive haulage system at the point of change in gradient the haulage track should be well graded over a length of? 24 m 12 m 20 m 30 m 43 / 46 43. The driving pulley used in endless rope haulage is? Clifton pulley Jig pulley None Snub pulley 44 / 46 44. The margin allowed...m allows a cage to be lifted for materials to be slung beneath it? 1 to 2 m 7 to 10 m 3 to 7 m 2 to 3 m 45 / 46 45. The component in the winding engine house that stores the energy by speeding up during periods of light load and delivers it by slowing during the heavy load period is? Additional winding in the system Electrical gear Electrical braker Flywheel 46 / 46 46. In long length of haulage system the effective signalling system is by the use of? Relays High capacity battery Step down potential transformer 110 v line current Your score is The average score is 50% LinkedIn Facebook Twitter 0% Admin03/08/20240 13 Less than a minute