The impact strength of a material is an index of its ___________________?

A. Toughness
B. Tensile strength
C. Capability of being cold worked
D. Hardness

Percentage reduction of area in performing tensile test on cast iron may be of the order of__________________?

A. 50%
B. 25%
C. 0%
D. 15%

True stress-strain curve for materials is plotted between__________________?

A. Load/original cross-sectional area and change in length/original length
B. Load/instantaneous cross-sectional area original area and log
C. Load/instantaneous cross-sectional area and change in length/original length
D. Load/instantaneous area and instantaneous area/original area

For steel, the ultimate strength in shear as compared to in tension is nearly _________________?

A. Same
B. Half
C. One-third
D. Two-third

Which is the false statement about true stress-strain method______________?

A. It does not exist
B. It is more sensitive to changes in both metallurgical and mechanical conditions
C. It gives, a more accurate picture of the ductility
D. It can be correlated with stress-strain values in other tests like torsion, impact, combined stress tests etc.

If a part is constrained to move and heated, it will develop ____________________?

A. Principal stress
B. Tensile stress
C. Compressive stress
D. Shear stress

The value of modulus of elasticity for mild steel is of the order of________________?

A. 2.1xl05 kg/cm2
B. 2.1 x 106 kg/cm2
C. 2.1 x 107 kg/cm2
D. 0.1 xlo6 kg/cm2 (

The buckling load for a given material depends on___________________?

A. Slenderness ratio and area of cross-section
B. Posison’s ratio and modulus of elasticity
C. Slenderness ratio and modulus of elasticity
D. Slenderness ratio, area of cross-section and modulus of elasticity

The property of a material by virtue of which a body returns to its original, shape after removal of the load is called____________________?

A. Plasticity
B. Elasticity
C. Ductility
D. Malleability

Poisson’s ratio is defined as the ratio of_________________?

A. Longitudinal stress and longitudinal strain
B. Longitudinal stress and lateral stress
C. Lateral stress and longitudinal stress
D. Lateral stress and lateral strain