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Q. Define corrosion-resistant nickel-based alloys?
The corrosion-resistant nickel-based alloys offer a significant improvement in corrosion resistance to sulphuric acid over the 300 series stainless steels. A broader range of concentrations can be handled; however, temperature is still a limiting factor.
A number of corrosion resistant nickel alloys are commercially available. The Iso-Corrosion Charts for several common alloys. Each alloy typically has its own advantages. In selecting a specific alloy for a given service, some in situ corrosion testing is recommended.
Alloy-20 (Carpenter 20Cb3) and Incoloy 825 are two readily available commercial nickel-based alloys that have superior corrosion resistance to a broad range of H2SO4 concentrations. Higher nickel-based alloys, such as Hastelloy B, Hastelloy C / C276 and Hastelloy G, also offer excellent resistance to H2SO4.
Pola r Modulus(Z p ): It is the ratio of polar moment of the inertia to outer radius. Z p = J / R Polar Modulus of solid body ( Z p ) =[ ?/32. D 4 ]/ D
i) Illustrate forward path and self loop. ii) Describe transfer function. iii) Which feedback is preferred and why. iv) Write the properties of signal flow graph. v) Il
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Q. CSCC in Gas Streams? Due to process upset of FWKO or Treater, there may be chance of chloride carry over into the gas lines. Depending on the chloride contents of formation
What is relative humidity
Illustrate following key terms with suitable example :- (a) Co-planar parallel force. (b) Co-planar non concurrent force. (c) Non co-planar concurrent force.
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The resultant of four vertical forces is a couple moment 30 Nm acting counter clockwise. Three of the four forces are shown in fig given below. Evaluate the fourth force.
Derive the relation ship between volumetric efficiency & clearance.
Q. Show that quantity is invariant under Lorentz transformation. Show that the relativistic kinetic energy is given by C2 and it approaches to non relativistic kinetic energy fo
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