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 moreC. 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 E. unpredictable
Brittle coating technique is used for_________________? A. determining brittleness B. protecting metal against corrosion C. protecting metal against wear and tearD. experimental stress analysis E. non-destructive testing of metals
Other method of reducing shock load in the above case can be_________________? A. to decrease lengthB. to increase length C. unaffected by length D. other factors would decide same E. none of the above
Resilience of a material is important, when it is subjected to________________? A. combined loading B. fatigue C. thermal stresses D. wear and tearE. shock loading
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…
Guest’s theory of failure is applicable for following type of materials_________________? A. brittleB. ductile C. elastic D. plastic E. tough
The property of a material which enables it to resist fracture due to high impact loads is known as__________________? A. elasticity B. endurance C. strengthD. toughness E. resilience