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Q. Explain External Pressure Design?
Determine requirements for external pressure based on the expected operation of the vessel, and add a suitable operating margin to establish the external design pressure and coincident temperature.
Consideration must be given to the effects of introducing air into the vessel, if vacuum relief devices are used. Vessels in steam service shall be designed for full vacuum, and consideration shall also be given for vessels in services that may be subject to steam out.
EQUIPMENT FOR RESISTANCE WELDING The equipment for resistance welding is different from that for arc welding for the following reasons: Resistance welding machines are complica
Calculate plastic zone: Calculate plastic zone ahead of crack in above problem if σY = 250 MPa. Solution From Eq. Here KI is taken as KI max since the plastic
Consider a simple single machine system. It consists of workpieces that enter the system, wait their turn to be processed on a single machine, and then depart the system. The workp
Q. Design requirements for Aircraft Access? For some remote locations, provision may be required for occasional landing of aircraft during emergencies or executive visits. Thes
Find out the intensity of the external pressure: A thick cylinder of 0.5 m external diameter & 0.4 m internal diameter is subjected simultaneously to internal & external press
The figure shows a "square cavity flow". In this flow the cavity is filled with a fluid and the lid of the cavity moves with a constant velocity, while the other walls remain stati
STORAGE AND HANDLING OF ELECTRODES It is recommended that the electrodes should be stored in a warm and dry place. Generally, conditions of storage in the shop are not very condu
Tempering and Stabilization: Tempering of tool steel in heat treatment is again a significant step. The quenching of such steels reasons the existence of untempered martensit
Screw Driver: Screwdrivers of different sizes are used to tighten or loosen screws. These are made of vanadium steels. A typical screw driver is shown in Figure. Fig
a) An epicyclic gear have three wheels A, B and C. Wheel A has 72 internal teeth, wheel C has 32 external teeth. The wheel B gears with both A and C is carried on an arm which move
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