Related Questions

Slow plastic deformation of metals under a constant stress is termed as __________ failure.
A Fatigue
B Endurance
C Creep
D None of these
Whenever some external system of forces acts on a body, it undergoes some deformation. As the body undergoes some deformation, it sets up some resistance to the deformation. This resistance per unit area to deformation, is called
A Strain
B Stress
C Pressure
D Modulus of elasticity
An ideal plastic substance indicates no deformation, when stressed upto yield stress, but behaves like a Newtonion fluid beyond yield stress. Which of the following is an ideal plastic?
A Sewage sludge
B Rubber latex
C Blood
D Sugar solution
Slow and progressive deformation of a material with time under constant stress is called
A Creep
B Erosion
C Resilience
D None of these
The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the __________ stress.
A Working
B Damaging
C Allowable
D None of these
The deformation of a bar under its own weight compared to the deformation of same body subjected to a direct load equal to weight of the body is
A Same
B Double
C Half
D Four times
The deformation of a bar under its own weight is _________ the deformation, if the same body is subjected to a direct load equal to weight of the body.
A Equal to
B Half
C Double
D Quadruple
Deformation drag, which is caused by widespread deformation of fluid around the immersed body
A Occurs when NRe is very small
B Is primarily a friction drag
C Is independent of body length
D Depends mainly on cross-sectional shape
The property of a bearing material which has the ability to accommodate shaft deflections and bearing inaccuracies by plastic deformation without excessive wear and heating, is known as
A Bondability
B Embeddability
C Comformability
D Fatigue strength
In the tensile test, the phenomenon of slow extension of the material, i. e. stress increasing with the time at a constant load is called
A Creeping
B Yielding
C Breaking
D Plasticity

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