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Define Black & White Fathometer - Non-Destructive Testing?
Most commonly used sounding device is black & white fathometer. The units are compact and easy to use. They consist of a transducer, which is suspended in the water, a sending/receiving device, and a recording chart, which displays the depth on paper. High frequency sound waves, generally in the range of 200 kHz, emitted from the transducer travel through the water until they strike the channel bottom and are reflected back to the transducer. The fathometer measures the time it takes the sound waves to return to the transducer, and converts that time to the depths of water, which are displayed on a graphic recorder in the form of a continuous plot of the channel bottom.
A shaft 9 m long is subjected to a torque 30 t-m at a point 3 m distant from either end. The reactive torque at the nearer end will be?
1. [6 marks] Treating the bar illustrated above as being a one dimensional axial bar where plane sections remain plane and parallel, analyse the bar using the Galerkin finite eleme
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First Can I use this device to test concrete specimen? I think the specimens sustain tensile strength with fixing the jaws! I want to know it is true or not?
LOSS OF PRESTRESS DUE TO SHRINKAGE OF CONCRETE We know that concrete shrinks in volume when it dries up. This volume reduction takes place in the form of reduction of all dime
A stationary 40 kN single axle load (applied on a circular contact area of radius = 152 mm = 6") is applied to each of the flexible pavement structures indicated below. Assuming li
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Question What is distinction in principle for conducting surface regularity test and sand test? Answer Purpose of surface regularity test is to assess riding quality
Q. Write short note on Surplus Store? Comprise stores which are surplus to requirements and include materials released from renewals and replacements as well as from dismantled
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