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Q. Explain about Hardness testing?
When indicated on equipment or vessel data sheets, hardness testing shall be performed as follows:
a) Perform hardness tests at or near the centre of the weld or surface to be tested on the side exposed to the process environment. Prepare the surface in accordance with ASTM E-10. Use a Telebrineller portable tester to measure hardness.
One hardness test for each 3.05 m (10 ft) or fraction thereof, for each longitudinal seam of each course. One hardness test for each 3.05 m (10 ft) or fraction thereof, for each vessel circumferential seam. One hardness test for each nozzle to shell weld.
One test on each surface cut with oxy-fuel or Arc-Air which is left unwelded on the finished part. One test on each area where a temporaryweld was made and removed.
(a) Illustrate self-locking and self-energizing brakes. (b) The diameter of the drum is 250mm and the angle of contact is 90 o , If the operating force of 700 N is applied at th
A load of 2MN is applied on a short concrete column 500 mm x 500 mm. The column is reinforced with four steel bars of 10 mm diameter, one in each corner. Evaluate the stresses in t
What are the Alluvial sediments Alluvial sediments are characterized by stratification or layering and fine grained soil layers have higher compressibility as compared to coars
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use of productin drawing in manufacturing technolagy
A cantilevered beam is to be made of 7075-T6 aluminum with a uniaxial yield strength of 469 MPa. The beam is 1m long, and is loaded with the following limit loads: a bending mome
tryton cycle
DIFINE AS INERTIA
Combined Rules MOD (modified operation due date) PN j = max (t + o j , t dj ) (SPT-Tr) (Truncated SPT)
Define Cutting Parameters - Depth of Cut It is the thickness of metal removed by grinding wheel in one traverse stroke (lengthwise) t=depth of cut =D 1 -D 2 / 2
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