Posts

Elcometer

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Measuring paint thickness using elcometer 

Cause for flood in kerala

Heavy  rain primary reasons  Management  of reservoir operation Reservoir operation could not have helped in flood control as only 16to 21 percent  Rain forecast  Difference in simulated and forecasted example iduki dam it is 2763m/s and 2532m/ Uncontrolled tributary 

Trash rack

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It is constructed bottom level of the dam for removing trash before distributing water

Gear terminology

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External vs internal gears

An external gear is one with the teeth formed on the outer surface of a cylinder or cone. Conversely, an internal gear is one with the teeth formed on the inner surface of a cylinder or cone. For bevel gears , an internal gear is one with the pitch angle exceeding 90 degrees. Internal gears do not cause output shaft direction reversal

Calculating offsets in piping...........

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Most of the offsets used in piping runs are made with 45,60, 11 and 1/4 degrees  respectively  T = S x  table value T= travel  S= set, table  value( for 45 degree =1.414. for 60 degree =1.155 and for 11 and 1/4 =5.125)

PHYSICS OF SEAM BOWLING

Seam bowling   is a phrase used for a   bowling   technique in   cricket   whereby the ball is deliberately bowled on to its seam, to cause a random deviation. Practitioners are known as   seam   bowlers   or   seamers . Seam bowling is generally classed as a subtype of   fast bowling , although the bowling speeds at which seam can be a factor include medium-pace bowling. Although there are specialist seamers that make deliberate use of   Off cutter   and   Leg cutter   at the expense of bowling slower than regular fast bowlers, most bowlers employ the seam to some effect and so the terms "seamer" and "fast bowler" are largely synonymous. A   cricket ball   is not a perfect   sphere . The seam of the ball is the circular stitching which joins the two halves of the cricket ball. Hence, the seam joining the pieces of leather is circumferential and the stitching is noticeably raised. If the ball is bo...