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Mechanical Engineering - Machine Design

Exercise : Machine Design - Section 5
26.
The Wahl's stress factor (K) for springs is given by
(where )
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
According to Rankine's theory, the failure occurs at a point in a member
when the maximum shear stress in a bi-axial stress system reaches the shear stress at elastic limit in a simple tension test
when the maximum principal stress in a bi-axial stress system reaches the elastic limit of the material in a simple tension test
when the strain energy per unit volume in a bi-axial stress system reaches the strain energy at the elastic limit per unit volume as determined from a simple tension test
when the maximum principal strain in a bi-axial stress system reaches the strain at the elastic limit as determined from a simple tension test
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
The dedendum is the radial distance from the
pitch circle to the top of a tooth
pitch circle to the bottom of a tooth
top of a tooth to the bottom of a tooth
addendum circle to the clearance circle
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
In a steam engine, the valve rod is connected to an eccentric rod by means of
cotter joint
knuckle joint
universal joint
flange coupling
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
In helical gears, the distance parallel to the axis, between similar faces of adjacent teeth, is called
normal pitch
axial pitch
diametral pitch
module
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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