Engineering :: Strength Of Materials

@ : Home > Mechanical Engineering > Strength Of Materials

11.

Tensile stress is

A.	Stress due to any force	B.	Stress due to change in length under a load
C.	Stress caused by varying load	D.	Stress measured by the ratio of the increase or decrease in length of the unloaded piece
E.	Stress measured by the ratio of the increase or decrease in length of the unloaded piece under tensile force

12.

Poisson's ratio for cast iron is

13.

A material which recovers fully after unloading but not instantaneously is known as

14.

The safe value of stress under which a member subjected to reversible tensile or compressive stress will not fail is known as

15.

The numerical values of Young's modulus of elasticity in descending order for wood, lead, glass, steel and phospor brouze is given by

A.	Steel, Phosphor-bronze, Glass, Lead and Wood	B.	Steel, Glass, Phosphor-bronze, Lead Wood
C.	Steel, Wood, Lead Phosphor-bronze, Glass	D.	Steel, Lead, Wood, Phosphor-bronze, Glass
E.	Steel, Phosphor-bronze, Wood, Glass, Lead

16.

The average values of modulus of rigidity for Aluminium. Brass Copper, Nickel and Steel in desceading order are given by

A.	Aluminium, Brass, Copper, Nickel, Steel	B.	Aluminium, Copper, Nickel, Brass, Steel
C.	Aluminium, Nickle, Steel, Brass, Copper	D.	Brass, Copper, Aluminium, Nickel, Steel
E.	Steel, Nickle, Copper, Brass, Aluminium

17.

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

18.

The numerical values of Young's modulus of clasticity in ascending order for Aluminium, Bronze, Brass, Inconel and Muntz metal are given by

A.	Muntz metal, Brass, Aluminium, Bronze, Inconel	B.	Muntz metal, Aluminium, Bronze, Brass, Inconel
C.	Inconel, Muntz metal, Aluminium, Bronze, Brass	D.	Aluminium, Bronze, Muntz metal, Inconel, Brass
E.	Aluminium, Bronze, Brass, Muntz metal, Inconel.

19.

The loss of strength in compression with simultaneous gain in srength in tension due to overloading is known as

20.

A material capable of absorbing large amounts of energy is known as