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Mechanical Engineering - Machine Design

Exercise : Machine Design - Section 2
46.
The elasticity is the property of a material which enables it to
regain its original shape after deformation when the external forces are removed
draw into wires by the application of a tensile force
resist fracture due to high impact loads
retain deformation produced under load permanently
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
The surface finish factor for a mirror polished material is
0.45
0.65
0.85
1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
For low and moderate speed engines, the cam follower should move with
uniform velocity
simple harmonic motion
uniform accleration and retardation
cycloidal motion
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
Which of the following statement is correct ?
A parallel sunk key is a taperless key
A parallel sunk key may be rectangular or square in cross-section
A flat saddle key is a taper key which fits in a key way of the hub and is flat on the shaft
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
When a bolt and nut is made of mild steel, then the effective height of nut is made equal to (where d = Nominal diameter of bolt)
0.5 d
0.75 d
d
1.25 d
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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