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    Mechanical Engineering : Machine Design Question & Answer in English

The size of gears is usually specified by
A.  Pressure angle
B.  Pitch circle diameter
C.  Circular pitch
D.  Diametric pitch

The process extensively used for making bolts and nuts is  -
A.  Hot piercing
B.  Extrusion
C.  Cold peening
D.  Cold heading

The ratio of linear to linear strain is called -
A.  Modulus of elasticity
B.  Modulus of rigidity
C.  Bulk modulus
D.  Poission’s ratio

The Poission’s ratio for steel varies from
A.  0.21 to 0.25
B.  0.25 to 0.33
C.  0.33 to 0.38
D.  0.38 to 0.45

The neutral axis of a beam is subjected to
A.  Zero stress
B.  Maximum tensile stress
C.  Maximum compressive stress
D.  Maximum shear stress