UNIBRAINLY: Stress

Strength Of Materials/Mechanics Of Materials - Section 1 part 10

46.

The strain energy stored in a solid circular shaft subjected to shear stress (τ) is (where C = Modulus of rigidity for the shaft material)

A.	x Volume of shaft
B.	x Volume of shaft
C.	x Volume of shaft
D.	x Volume of shaft

Strength Of Materials/Mechanics Of Materials - Section 1 part 9

41.

If the tearing efficiency of a riveted joint is 50%, then ratio of rivet hole diameter to the pitch of rivets is

A.	0.20
B.	0.30
C.	0.50
D.	0.60

Strength Of Materials/Mechanics Of Materials - Section 1 part 8

36.

In order to know whether a column is long or short, we must know its slenderness ratio.

A.	True
B.	False

Strength Of Materials/Mechanics Of Materials - Section 1 part 7

31.

The bending stress in a beam is __________ section modulus.

A.	directly proportional to
B.	inversely proportional to

Strength Of Materials/Mechanics Of Materials - Section 1 part 6

26.

The point of contraflexure is a point where

A.	shear force changes sign
B.	bending moment changes sign
C.	shear force is maximum
D.	bending moment is maximum

Strength Of Materials/Mechanics Of Materials - Section 1 part 5

21.

In the torsion equation

the term J/R is called

A.	shear modulus
B.	section modulus
C.	polar modulus
D.	none of these

Strength Of Materials/Mechanics Of Materials - Section 1 part 4

16.

The bending moment at a point on a beam is the algebraic __________ of all the moments on either side of the point.

A.	sum
B.	difference

17.

The maximum diameter of the hole that can be punched from a plate of maximum shear stress 1/4^th of its maximum crushing stress of punch, is equal to (where t = Thickness of the plate)

A.	t
B.	2t
C.	4t
D.	8t

18.

Two closely coiled helical springs 'A' and 'B' are equal in all respects but the number of turns of spring 'A' is half that of spring 'B' The ratio of deflections in spring 'A' to spring 'B' is

A.	1/8
B.	1/4
C.	1/2
D.	2

19.

The deformation per unit length is called

A.	tensile stress
B.	compressive stress
C.	shear stress
D.	strain

20.

A thin cylindrical shell of diameter (d) and thickness (t) is subjected to an internal pressure (p). The ratio of longitudinal strain to volumetric strain is