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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.
Determine the Statements about Unit Area or Borrow Pit? Ans: I. Sometimes called Average Depth II. Works well for volumes for building sites and surface mines III. Needs
The thickness of a saturated specimen of clay under a consolidation pressure of 100 kN/m 2 of is 24 mm and its water content is 20%. On enhance of the consolidation pressure to 20
Define in biref about the Final Prestress The stress which exists after all losses of prestress have occurred substantially is known as final prestress. This may be calculated
Q. What is Raft Foundation? A raft or mat is combined footing that covers the entire area beneath a structure and supports all the walls and coloumn when the allowable soil pre
industrial applications of ultrasonic welding,soldering,drilling,claning
Define Alkali Aggregate Reaction - Chemical deterioration? Sometimes high alkali cement reacts with minerals in certain aggregates and forms expansive compounds resulting into
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difference between delievery and suction pipe?
Ground Water Levels The location of the ground water level is essential for deep excavation, water-logged areas. The existing wells in the nearby vicinity of the proposed site
how to discussion cross section?
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