A. elasticity
B. endurance
C. strength
D. toughness
E. resilience
0
Guest’s theory of failure is applicable for following type of materials_________________?
0
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. brittle
B. ductile
C. elastic
D. plastic
E. tough
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Resilience of a material is important, when it is subjected to________________?
A. vpE
B. vVvF
C. WpE/2
D. IvHpE
E. none of the above, where E = modulus of elasticity and p = mass density
0
Other method of reducing shock load in the above case can be_________________?
A. combined loading
B. fatigue
C. thermal stresses
D. wear and tear
E. shock loading
0
Brittle coating technique is used for_________________?
A. to decrease length
B. to increase length
C. unaffected by length
D. other factors would decide same
E. none of the above
0
The endurance limit of a material with finished surface in comparison to rough surface is_________________?
A. determining brittleness
B. protecting metal against corrosion
C. protecting metal against wear and tear
D. experimental stress analysis
E. non-destructive testing of metals
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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. more
B. less
C. same
D. more or less depending on quantum of load
E. unpredictable
0
Stress concentration in static loading is more serious in__________________?
A. same in both cases
B. 2 times more
C. 3 times more
D. 4 times more
E. unpredictable