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Q. Corrosion - Erosion Allowance?
The required design life shall be based on written agreement between the user and the Engineering Contractor. Allowance specified shall be based on need, and can best be determined by past experience in similar operating environments. If no past experience is available, such as a new process, a Materials Engineer should examine the process and make judgment on the expected corrosion rate. Corrosion allowance should not be arbitrary; rather it should be compatible with design life requirements. However, it is customary to include a 1/8 in (3.2 mm.) corrosion allowance on most carbon steel process vessels.
Downward force on sleeve must be +OR - Sy/x
Q. Describe about Austenitic stainless steels? Austenitic stainless steels (300 series) generally exhibit very good corrosion resistance in sulphuric acid service for low conce
calculation of stage wise specific steam consumption and power output
can the superheat be in percentage?
Classification of system of forces
a) Round off the numbers 865250 amd 37.46235 to four significant figures and compute Ea, Er, Ep in each case. b) IF u= 4 x 2 y 3 /z 4 and errors in x, y, z be 0.001, determine
what is the role of a correction couple and how does it come into picture in dynamically equivalent system?
A sign of uniform density weighs 270 lb and is supported by a ball-andsocket joint at A and by two cables. Determine the tension in each cable and the reaction at A.
Q. Mechanical design of the blowdown systems? Mechanical design of the blowdown systems shall be sized for a continuous blowdown of a minimum of 1.0% of MCR. Fabricator may re
Given these sinusoids: x1(t) = 0.5cos(25t+20 o ), x2(t)=0.85cos(25t+160 o ) and x3(t)= 0.81cos(25t-145 o ) (a) Subplot the phasors X1, X2 and X3 corresponding to the thee si
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