Material Testing Lab_Tensile Test

Tensile test can be performed on

• Impact testing machine

• Universal testing machine

• Rockwell tester

• Brinell tester

Which machine records the change in length of specimen?

• Impact testing machine

• Universal testing machine

• Rockwell tester

• Brinell tester

The ability of the material to resist stress without failure is called

• Strength

• Hardness

• stiffness

• toughness

In universal testing machine, the tensile specimen of mild steel fails in shear and the shear stress is maximum at __ degrees planes with respect to the direction of load.

• 30

• 45

• 60

• 75

When equal and opposite forces applied to a body, tend to elongate it, the stress so produced, is called ____________

• Shear stress

• Compressive stress

• Tensile stress

• Transverse stress

The phenomenon of slow growth of strain under a steady tensile stress is called ____________

• Yielding

• Creeping

• Breaking

• None of the mentioned

A rod 150cm long and of diameter 2cm is subjected to an axial pull of 20kN. What will be the stress?

• 60 N/mm2

• 65 N/mm2

• 63.6 N/mm2

• 71.2 N/mm2

The stress in a rod is 70 N/mm2 and the modulus of elasticity is 2 x 105 N/mm2. what will be the strain in the rod?

• 0.00052

• 0.00035

• 0.00030

• 0.00047

Tensile test on MS, Failure like Cup and cone.

• True

• False

The ability of the material to withstand tensile force, without breaking, is known as ______

• Yield strength

• Tensile strength

• Compressive strength

• Creep strength