Fatigue strength can be increased by__________________?

A. Cold working
B. Shot peening
C. Grinding and lapping surface
D. Hot working

Coaxing is the procedure of increasing__________________?

A. Metal strength by cycling
B. Metal hardness by surface treatment
C. Metal resistance to corrosion by coating
D. Fatigue limit by overstressing the metal by successively increasing loadings

The notch angle of the Izod impact test specimen is________________?

A. 10°
B. 20°
C. 30°
D. 45°

In testing a material for endurance strength, it is subjected to_______________________?

A. static load
B. dynamic load
C. impact load
D. static as well as dynamic load

In Vicker’s hardness testing, the pyramid indentor apex is__________________?

A. 40°
B. 122°
C. 136°
D. 152°

If a material fails below its yield point, failure would be due to___________________?

A. Straining
B. Fatigue
C. Creep
D. Sudden loading

Stress concentration in cyclic loading is____________________? Which is correct statement ?

A. Very serious in brittle materials and less serious in ductile materials
B. Very serious in ductile materials and less serious in brittle materials
C. Equally serious in both types of materials
D. Seriousness would depend on other factors

Stress concentration in static loading is_________________?

WhiCh is correct statement ?
D. None of these

Which of the following is not correct procedure to increase the fatigue limit_______________?

A. Cold working
B. Shot peening
C. Surface decarburisation
D. Under-stressing

Endurance limit or fatigue limit is the maximum stress that a member can withstand for an infinite number of load applications without failure when subjected to________________?

A. Dynamic loading
B. Static loading
C. Combined static and dynamic loading
D. Completely reversed loading