Question 1

The maximum strain energy that can be stored in a body is known as

Accepted Answer

A) impact energy 
B) resilience 
C) proof resilience 
D) modulus of resilience

Question 2

stress at which extension of material takes place more quickly as compared to increase in load is called

Accepted Answer

A) elastic point of the material 
B) plastic point of the material 
C) breaking point of the material 
D) yielding point of the material

Question 3

The materials which have the same elastic properties in all directions are called __________

Accepted Answer

A) Isotropic 
B) Brittle 
C) Homogeneous 
D) Hard

Question 4

Young?s modulus of a material which gives 2 kN/mm2 stress at 0.01 strain is

Accepted Answer

A) 20kN/mm2 
B) 0.02kN/mm2 
C) 200 kN/mm2 
D) 2000kN/mm2

Question 5

steel bar 10 mm x 10 mm cross section is subjected to an axial tensile load of 20kN. If the length of bar is 1 m and E = 200 GPa, then elongation of the bar is:

Accepted Answer

A) 1 mm 
B) 0.5 mm 
C) 0.75 mm 
D) 1.5 mm

Exam 3: Materials Mechanics and Elasticity

The maximum strain energy that can be stored in a body is known as

stress at which extension of material takes place more quickly as compared to increase in load is called

The materials which have the same elastic properties in all directions are called __________

Young?s modulus of a material which gives 2 kN/mm² stress at 0.01 strain is

steel bar 10 mm x 10 mm cross section is subjected to an axial tensile load of 20kN. If the length of bar is 1 m and E = 200 GPa, then elongation of the bar is: