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    Mechanical Engineering : Machine Design Question & Answer in English

11.
An aluminium member is designed based on

A.  Yield stress
B.  Elastic limit stress
C.  Proof stress
D.  Ultimate stress

12.
 Rankine’s theory is used for    
A.  Brittle materials
B.  Ductile materials
C.  Elastic materials
D.  Plastic materials

13.
Guest’s theory is used for
A.  Brittle materials
B.  Ductile materials
C.  Elastic materials
D.  Plastic materials

14.
At the neutral axis of a beam, the shear stress is
A.  Zero
B.  Minimum
C.  Maximum
D.  1.5 times

15.
The stress which vary from a minimum value to a maximum value of the same nature is called
A.  Repeated stress
B.  Yield stress
C.  Fluctuating stress
D.  Alternating stress

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