Answer as many as you can, no solution needed 30. What is the required minimum diameter (in inches) in a shaft subjected to a fluctuatung shearing load of 525lb? The material is 1040 CD with an estimated endurance strength of 30 ksi. Use Kt=2.5 and N = 2.a. 0.40b. 0.5032. Two No. 40 sprockets with 17T and 56T are 20 inch apart. Determine the chain length in inches for thischain drive configuration.a. 37.1b.39.2C.0.60d. 0.7033. A small steel disc was used as a flywheel in a machine. If the disc has an inside diameter, outside diameterand width of 1, 10 and 2 inches respectively, what is its inertia in lb-ft²? Use & = 0.284 lb//in³.a.70b. 80C. 43.845.7d.a. 1.00b. 1.15C. 90d.34. The maximum and minimum band tensions of a simple band brake are 250 lbs and 50 lbs, respectively. Whatshould be the angle of wrap of the band if the coefficient of friction is 0.4.a.146b. 173a. 10b. 20C.d.Answer is not among the choices36. A compression spring has a length of 0.75 in when loaded with 30 lb. If the spring has a spring rate of 50lb/in, what is its free length in inches?192230C. 1.25d. 1.3538. The 2.0 mm steel wire is intended to be used in the design and manufacture of a helical compression spring.What is the recommended minimum mean diameter, in mm, of the spring to eliminate the tendency tobuckle?C.d.2430

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30. What is the required minimum diameter (in inches) in a shaft subjected to a fluctuatung shearing load of 525 lb? The material is 1040 CD with an estimated endurance strength of 30 ksi. Use Kt = 2.5 and N = 2. a. 0.40 b. 0.50 C. d. 0.60 0.70

30. What is the required minimum diameter (in inches) in a shaft subjected to a fluctuatung shearing load of 525 lb? The material is 1040 CD with an estimated endurance strength of 30 ksi. Use Kt = 2.5 and N = 2. a. 0.40 b. 0.50 C. d. 0.60 0.70

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Concept explainers

Combined Loading

Any functioning component, such as machine parts, structural members, pressure vessels, and so on, are all under the influence of more than one force. When anybody is under the influence of more than one force such as shear forces, bending moments, axial forces, torsion, and so on, then such body is said to be under combined loading. A very practical example of combined loading is the crankshaft of an internal combustion engine (IC engine). The crankshaft of the IC engine is under high rpm, which is caused due to the torsional forces. Due to the presence of piston, counterbalances, and internal imbalances, the crankshaft experiences lateral forces and due to the rise in temperature, the crankshaft undergoes thermal expansion, which pulls the crankshaft along the axial direction and lateral direction. The presence of unbalanced loads along the periphery of the crankshaft also induces a bending moment.

Question

Answer as many as you can, no solution needed

30. What is the required minimum diameter (in inches) in a shaft subjected to a fluctuatung shearing load of 525
lb? The material is 1040 CD with an estimated endurance strength of 30 ksi. Use Kt=2.5 and N = 2.
a. 0.40
b. 0.50
32. Two No. 40 sprockets with 17T and 56T are 20 inch apart. Determine the chain length in inches for this
chain drive configuration.
a. 37.1
b.
39.2
C.
0.60
d. 0.70
33. A small steel disc was used as a flywheel in a machine. If the disc has an inside diameter, outside diameter
and width of 1, 10 and 2 inches respectively, what is its inertia in lb-ft²? Use & = 0.284 lb//in³.
a.
70
b. 80
C. 43.8
45.7
d.
a. 1.00
b. 1.15
C. 90
d.
34. The maximum and minimum band tensions of a simple band brake are 250 lbs and 50 lbs, respectively. What
should be the angle of wrap of the band if the coefficient of friction is 0.4.
a.
146
b. 173
a. 10
b. 20
C.
d.
Answer is not among the choices
36. A compression spring has a length of 0.75 in when loaded with 30 lb. If the spring has a spring rate of 50
lb/in, what is its free length in inches?
192
230
C. 1.25
d. 1.35
38. The 2.0 mm steel wire is intended to be used in the design and manufacture of a helical compression spring.
What is the recommended minimum mean diameter, in mm, of the spring to eliminate the tendency to
buckle?
C.
d.
24
30

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