A.9-12

B.7-9

C.5-7

D.3-5

A.Erosion

B.IPC (imparting particle corrosion)

C.Erosion or erosion corrosion

D.Erosion corrosion

A.PWHT

B.All of the above

C.Alloys

D.Preheat

A.Constant stresses occurring at low temperatures.

B.Cyclic operating conditions of bird poop then rain, bird poop then rain, etc.

C.Higher than average stresses at high temperatures.

D.Cyclic stresses occurring over a long period of time.

A.Fish-mouth

B.Tensile

C.None of the above

D.Rapid