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Mechanical Engineering - Machine Design

Exercise : Machine Design - Section 4
26.
A pressure vessel is said to be a thick shell, if the ratio of wall thickness to its diameter is
equal to 1/10
less than 1/10
greater than 1/10
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
The radial stress across the thickness of a thick cylinder is maximum at the inner surface and zero at the outer surface.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
The diameter of the rivet hole is usually __________ the nominal diameter of the rivet.
equal to
less than
more than
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
The resilience of a bolt may be increased by
increasing its shank diameter
increasing its length
decreasing its shank diameter
decreasing its length
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
In worm, gears, pitch lead angle is
half the angle between two inclined faces in axial plane
the angle between the tangent to the pitch helix and the plane of rotation
the angle between the tangent to the pitch helix and an element of the cylinder
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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