International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 604
ess of the plate of a wrought-iron boiler4 feet in diameter which sustains a steam pressure of 120 lb.per sq. in ? Assume factor of safety for steady stress. Ans. .35 in. (568) What should be the thickness of a 6 cast-ironwater pipe to carry a steady pressure of 200 lb. per sq. in. ? Ans. .18 in.… … Fig. 3. STRENGTH OF MATERIALS. 593 (570) A cast-iron cannon of 4 bore is subjected to aninternal pressure of 2,000 lb. per sq. in. on being fired; whatshould be the thickness of the metal in order that it shall notbe subjected to a stress of more than 2,800 lb. per sq. in.? Ans. 5 in. (571) A…
Railroad engineering
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