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Q. Define Maximum Allowable Working Pressure?
The MAWP to be marked on the Section VIII nameplate is defined as the maximum gauge pressure permissible at the top of a completed vessel in its normal operating position at the designated coincident metal temperature for that pressure. This MAWP may be determined from the design pressure or from calculations, based on the specified nominal component thicknesses, reduced by the specified corrosion allowances.
The maximum permissible set-to-operate pressure of a single safety relief device cannot be higher than the MAWP.
A suitable margin consistent with the uncertainties with which the true maximum mean-metal temperature can be determined should be included. The design temperature for vessels shall be the maximum temperature for which a reduction in maximum allowable stress is not required (6500F (3430C) for carbon steel). If there is a limiting appurtenance, vessel design metal temperature shall be the maximum temperature allowed for that appurtenance at design pressure.
Displacement or Swept Volume ( V s ) : The nominal volume swept by the working piston when travelling from one dead centre to the other is called the displacement volume. It is e
what is the effect of tolerance in process planning?
Initial tension in the belt: Sol: The tension in belt which is passing over the two pulleys (that is driver and follower) when the pulleys are stationary is an initial tensi
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Find out the forces in the members of the tower: Find out the forces in the members of the tower. Solution By symmetry, ∠ AFG = ∠ AGF = θ and HG = 7.5 m; while AH = 3
Explain the subtractive process of Rapid Prototyping
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ELECTRO SLAG WELDING This process is similar to the electro gas welding process designed for making butt welding in the vertical position in one single pass and the plate
Plant layouts shall provide for a maximum of safety and exposure protection from the spread of fire, with ease of operation and maintenance consistent with economical design. Requi
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