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A steam boiler, 3 m in diameter, is made of 25 mm thick mild steel plates. The efficiency of longitudinal riveted joint is 88% and that of circumferential riveted joint is 70%. Calculate the permissible steam pressure if the maximum tensile stress in the plate section through the rivets is not to exceed 120N/mm2. Also Determine (a) Circumferential stress in the solid plate section, and (b) longitudinal stress in the plate section through the rivets.
velocity of belt: velocity of belt passing over the driver pulley will decrease Now with this velocity belt pass over driven pulley, Now Velocity of Driven = Velocity
Define the Disadvantages of Abrasive Jet Cutting Machines Slow material removal rate. Stray cutting and hence accuracy is not good. Abrasive powder cannot be reused
(a) What are the types of material used for making spanners? What are the uses of spanners? (b) Write down the uses of following tools and make neat sketches of the same : (i
Universal Support of Data Types To address inherent functional incompatibilities, we take the exact opposite route to the 'least common denominator' approach of previous soluti
Tension in string and accelerations of blocks: Find out the tension in string and accelerations of blocks A and B having weights 200N and 50N respectively, connected by the s
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After final PWHT, the hardness of the deposited weld metal and heat affected zone (HAZ) shall be examined. Hardness values shall not exceed 200 BHN. Heat treatment shall be perfo
Q. Material Selection for Insulation? Material for 15ºC to 650ºC temp range is Calcium Silicate, Manville Thermo-12 or approved equivalent. Material for -18ºC to 230ºC temp.
diffrence between actual and idealactual vapour compression cycle
Determine the carbon content of steel: A hypoeutetoid steel which was cooled slowly from γ-state to room temperature was found to contain 10% eutectoid ferrite. Suppose no cha
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