Q.1.
The corrosion fatigue is defined as the _________
Q.2.
Which one of the following is only present in the corrosion fatigue?
Q.3.
Is it possible that the material which shows the fatigue limit in normal environment does not show any endurance limit in a corrosive environment.
Q.4.
The number of pits generated on the surface of the material under fatigue corrosion are ________ than the number of pits on the surface of the same sample when it is tested only under corrosion environment.
Q.5.
The stainless steel components are coated with _________ to control the fatigue corrosion.
Q.6.
The fretting is the process of ____________
Q.7.
As the temperature decreases, there is a sudden change in the fatigue limit of the material, similar to what has been observed in the ductile to brittle transition.
Q.8.
The fatigue strength of the metal ____________ with increasing temperature.
Q.9.
Which of the following statement is correct?
Q.10.
At any given temperature, the creep will __________ with increasing mean stress.
Q.11.
The fatigue strength of the material ___________ as the grain decreases.
Q.12.
At higher temperature, if higher frequency of stress cycle is applied on the material, fracture will be ___________ and at lower frequency of stress, the fracture will be ___________