Stress concentration in static loading is more serious in__________________?

A. Ductile materials
B. Brittle materials
C. Equally serious in both cases
D. Depends on other factors

The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be_________________?

A. Same in both cases
B. 2 times more
C. 3 times more
D. 4 times more

The endurance limit of a material with finished surface in comparison to rough surface is_________________?

A. More
B. Less
C. Same
D. More or less depending on quantum of load

Brittle coating technique is used for_________________?

A. Determining brittleness
B. Protecting metal against corrosion
C. Protecting metal against wear and tear
D. Experimental stress analysis

Other method of reducing shock load in the above case can be_________________?

A. To decrease length
B. To increase length
C. Unaffected by length
D. Other factors would decide same

Resilience of a material is important, when it is subjected to________________?

A. combined loading
B. fatigue
C. thermal stresses
D. wear and tear

If an unsupported uniform cross sectional elastic bar is subjected to a longitudinal impact from a rigid bob moving with velocity v, then a compressive wave of intensity sc is propagated through the bar as follows______________________?

A. Vpe
B. Vvvf
C. Wpe/2
D. Ivhpe

Guest’s theory of failure is applicable for following type of materials_________________?

A. Brittle
B. Ductile
C. Elastic
D. Plastic

The property of a material which enables it to resist fracture due to high impact loads is known as__________________?

A. Elasticity
B. Endurance
C. Strength
D. Toughness

Which of the following variables controls the physical properties of a perfect gas_________________?

A. Pressure
B. Temperature
C. Volume
D. All of the above