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A marine turbine developing 15,000 HP and it turns the shaft at 300 RPM. A hollow steel shaft with outside diameter of 14 inches will be used. a. Compute for the torque in terms of ft-lb. b. Determine the inside diameter of the shaft, in terms of inches, if the maximum shearing stress based on the torsion alone is not to exceed 7,500 psi. c. If a solid shaft were to be used, what is the diameter of the solid shaft in terms of inches.

A marine turbine developing 15,000 HP and it turns the shaft at 300 RPM. A hollow steel shaft with outside diameter of 14 inches will be used. a. Compute for the torque in terms of ft-lb. b. Determine the inside diameter of the shaft, in terms of inches, if the maximum shearing stress based on the torsion alone is not to exceed 7,500 psi. c. If a solid shaft were to be used, what is the diameter of the solid shaft in terms of inches.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A marine turbine developing 15,000 HP and it turns the shaft at 300 RPM. A hollow steel shaft with outside diameter of 14 inches will be used.

a. Compute for the torque in terms of ft-lb.
b. Determine the inside diameter of the shaft, in terms of inches, if the maximum shearing stress based on the torsion alone is not to exceed 7,500 psi.
c. If a solid shaft were to be used, what is the diameter of the solid shaft in terms of inches.

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