Question 1

Exposure to high solution strength caustic can result in general corrosion or high corrosion rates above ________.

Options :

A : 175º F

B : 150º F

C : 125º F

D : 100º F

Answer: B

Question 2

Which material does not have an endurance limit?

Options :

A : Non-normalized carbon steel

B : Normalized carbon steel

C : Stainless steel

D : Titanium

Answer: C

Question 3

The dewpoint of hydrochloric acid depends on the concentration of hydrogen chloride. It is typically about _________.

Options :

A : 180º F

B : 160º F

C : 130º F

D : 110º F

Answer: C

Question 4

Welds joining dissimilar materials (ferritic and austenetic) may suffer __________ related damage at high temperatures due to differential thermal expansion stresses.

Options :

A : Stress

B : Creep

C : Fatigue

D : Thermal stress

Answer: B

Question 5

Which of the following materials are generally not suitable for HF service?

Options :

A : 300 Series SS

B : Carbon steel

C : 400 Series SS

D : Both A and C

Answer: D