Home/Volume-1/Shaft Sinking Volume-1 Shaft Sinking Admin02/08/20240 89 Less than a minute Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 0% Shaft Shinking Shaft Sinking 1 / 19 1. The method of sinking used through any fissured water bearing strata except in running sand is..? pneumatic caisson cementation forced drop piling 2 / 19 2. The holes treated with chemicals are called..? treating holes test holes product holes weeping holes 3 / 19 3. The method of sinking through loose deposits of sand up to 20m is? piling system open caisson tubbing cementation 4 / 19 4. Upward drivage of shaft is carried out for a distance up to ...m? 15 25 35 45 5 / 19 5. The process of treating holes with chemicals in cementation method is called..? defreezing silicatisation presilicatisation thawing 6 / 19 6. The safety device is provided in sinking shaft in case of overwind? spider kibble detaching hook rider 7 / 19 7. The method of sinking through loose deposits of sand up to 60m is? piling open caisson forced drop cementation 8 / 19 8. The method of sinking where there is ground filling problem or considerable inrush of water up to depth of 30m? piling open caisson Pneumatic caisson forced drop 9 / 19 9. The starting point of shaft at the ground surface is called..? collar pithead platform scaffold 10 / 19 10. In cementation method the purpose of treating holes with chemicals-silicate of soda and aluminum sulfate is..? To reduce the friction To seal cracks quick setting of cement none 11 / 19 11. The device used to prevent undue swinging of the bucket in sinking shaft? spider kibble scaffold rider 12 / 19 12. A permanent lining where running sand is encountered during sinking is..? Cementation piling concrete lining tubbing 13 / 19 13. Ventilation by mechanical means is provided in sinking shaft exceeding depth of...m? 30 25 40 15 14 / 19 14. In blasting in shaft sinking the number of holes are....times the dia of the shaft in m? 2 3 4 1 15 / 19 15. In freezing method of shaft sinking which is used for circulation? HCl HNO3 CaCl2 NaCl 16 / 19 16. In freezing method of sinking the removal of ice wall after completion of sinking by sending hot brine through holes is known as..? defreezing silicatisation postfreezing thawing 17 / 19 17. The quantity of ventilating air (cu.m) shall be provided in sinking shaft if depth exceeds 25m? 100 200 300 400 18 / 19 18. The method of sinking through alternate loose and tough strata up to 60m? piling open caisson forced drop cementation 19 / 19 19. The method of sinking in unstable or friable strata with heavy inrush of water? tubbing forced drop cementation method freezing method Your score is The average score is 65% LinkedIn Facebook Twitter 0% Admin02/08/20240 89 Less than a minute