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Mechanical Engineering - Machine Design

Exercise : Machine Design - Section 7
31.
In case of thick cylinders, the tangential stress across the thickness of cylinder is
maximum at the outer surface and minimum at the inner surface
maximum at the inner surface and minimum at the outer surface
maximum at the inner surface and zero at the outer surface
maximum at the outer surface and zero at the inner surface
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
When an open coiled helical compression spring is subjected to an axial load (W), the compression produced in the spring will be (where n = No. of active turns of the spring, and G = Modulus of rigidity for the spring material)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
The cam follower generally used in automobile engines is
knife edge follower
flat faced follower
spherical faced follower
roller follower
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
A closely coiled helical spring is acted upon by an axial force. The maximum shear stress developed in the spring is τ . The half of the length of the spring if cut off and the remaining spring is acted upon by the same axial force. The maximum shear stress in the spring in new condition will be
τ/2
τ
2 τ
4 τ
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
The malleable material should be plastic but is not essential to be so strong.
Agree
Disagree
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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