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Explain about the Hydrogen Embrittlement
As a result of the action of acids on high-tensile steels, liberation of hydrogen takes place. It penetrates into the steel surface and makes it brittle and fracture prone. Even small amounts of hydrogen can cause significant damage to the tensile strength of high-tensile steel wires. Use of high-alumina cement and blast furnace slag cement can cause hydrogen embrittlement in wires. In order to prevent it taking place, it is essential to properly protect steel from the action of acids. Protective coverings should be provided over the tendons for this puruose.
Project Management: This unit starts with the general definition of Project management. Several phases involved in project management are also desribed. Further, the technique
Carbonate Hardness (CH) - Water Softening Ca +2 , Mg +2 combining with alkalinity (OH - , CO 3 -2 , HCO 3 - ). If alkalinity is present in water the CH wil
Write definition of the following - (i) Afflux. ( ii ) Free Board. ( iii ) Clearance. ( iv ) Via duct. ( v ) Skew Bridge ( vi ) Cause Way. ( vii ) Clear Span. ( v
describe how you would range a surveying line betwen two point wich are not entervisible?
Primary effluent wastewater at 60 o F (v = 1.217 x 10 -5 ) is pumped to the top of a trickling filter (TF) a total of 75 vertical feet through schedule-40 welded steel pipe. The fl
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Ask question #Minimum 1Make a detailed list of all constraints and requirements to the bridge design00 words accepted#
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Two crops are grown on land of 20ha.The cost of raising crop 1 is 3unit/ha, while for crop 2 it is 1 unit/ha.The benefit from crop 1 is 5unit/ha and from crop 2, it is 2 unit/ha. A
The Figure 1 below shows a section through a stairway for a garage in a new proposed dwelling. The stairway is 3 meters wide with 300 mm wide treads(7 treads) and 170 mm high riser
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