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Define Diver Qualification - Diving Operation for Bridge Inspection?
The requisite qualification for divers and diving supervisors are given in IS 10291 -1982, which stipulates that the diver:
- Should be at least 18 years of age.
- Should be certified as being fit for diving by a qualified medical practitioner within the previous six months.
- Should be satisfactorily checkedto the maximum pressure he is to work in diving dress in water, or to an equal pressure in a compression chamber.
- Should comprise thorough knowledge of diving signals (IS 10291).
- Should be competent in the use of helmet, diving equipments.
- Should be able to conduct a circular search in the bottom under conditions of no visibility and in at least 0.6m depth of mud or soft silt.
- Should be capable to work on platform suspended under water.
Explain the Unconfined Aquifer Also termed "free aquifer". Groundwater flows by gravity from high head to low head. The upper water surface is termed "water table", is influenc
why is the foundation failure?
Process to calculate the Initial Tension The maximum stress induced in the prestressing tendon at the time of the stressing operation is known as initial tension in tendons. T
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Define Chemical Deterioration - Underwater inspection of Bridge? Chemical deterioration may occur in concrete, which has not been properly compacted, or through environmental p
Example for Beam Flexure Design Select the lightest W section for the simply supported beam shown below. The beam length is 12ft. The nominal loading is: w d = 4.0 kip/ft (i
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what is the cause of scale and sludge formation and its diadvantages
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