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25.

Rupture stress is

A.	breaking stress	B.	maximum load/original cross-section¬al area 04)
C.	load at breaking point/A	D.	load at breaking point/neck area

26.

Tensile strength of a material is obtained by dividing the maximum load during the test by the

A.	area at the time of fracture	B.	original cross-sectional area
C.	average of (a) and (b)	D.	minimum area after fracture

27.

The buckling load for a given material depends on

A.	slenderness ratio and area of cross-section	B.	Poisson's ratio and modulus of elasticity
C.	slenderness ratio and modulus of elasticity	D.	slenderness ratio, area of cross-section and modulus of elasticity

28.

The change in the unit volume of a material under tension with increase in its Poisson's ratio will,

A.	increase	B.	decrease
C.	remain same	D.	increase initially and then decrease

29.

The deformation of a bar under its own weight compared to the deformation of same body subjected to a direct load equal to weight of the body is

A.	same	B.	double
C.	half	D.	four times

30.

The distance between the centers of the rivets in adjacent rows of zig-zag riveted joint is known as

A.	pitch	B.	back pitch
C.	diagonal pitch	D.	diametral pitch

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