Which material has highest value of Poisson’s ratio
A.Steel
B.Copper
C.Concrete
D.Rubber
E.Wood
Category: Strength Of Materials Mcqs
In the simple bending theory one of the assumptions usually made is that the plane sections before bending remain plane after bending. This assumption implies that
A.Stress is uniform in the beam cross-section
B.Stress is uniform in the beam cross section
C.Stress is proportional to the distance from the neutral axis
D.Strain is proportional to the distance from the neutral axis
E.Stress is proportional to strain at all section
For a beam of uniform strength if its depth is maintained constant, then its width will vary in proportion to
A.Bending Moment, BM
B.(BM)2
C.(BM)
D.(BM)3
E.None of the above
The weakness section of a diamond riveting is the section which passes through
A.The first row
B.Row with maximum rivets
C.Middle row
D.End row with one rivet only
E.All rows have same strength
The numerical value of Young’s modulus of elasticity in ascending order for glass, aluminium, copper, wrought iron and tungsten are given by
A.Tungsten, wrought, iron, copper, aluminium, glass
B.Wrought iron, copper, aluminium, glass, tungsten
C.Copper, aluminium, glass, tungsten, wrought iron
D.Aluminium, glass, copper, wrought, iron, tungsten
E.Glass, aluminium, copper, wrought, iron, tungsten
The shape of the Kem area for a rectangular section is
A.Circle
B.Square
C.Rectangle
D.Parallelogram
E.Rhombus
Static loading of a specimen
A.Is done in steps
B.Is done by continuously increasing the work load
C.Is done by applying load in a short period during specified intervals
D.Is done by applying the load slowly enough so that all parts of the specimen are in equilibrium at any instant
E.None of the above
Rupture stress is
A.Proof stress
B.Breaking stress
C.Highest value of stress
D.Stress given by dividing the load at the moment of incipient fracture, by the area supporting that load
E.Stress at breaking point
For which of following material the value of Poissons ratio is more than 1?
A.Cork
B.Dead mild steel
C.Wood
D.Plastic
E.None of the above
