Question 1

Austenitic stainless steels typically contain chrome and nickel, and are used for:

Options :

A : corrosion resistance

B : resistance to high temperature degradation

C : sulfur resistance

D : both a and b, above

Answer: D

Question 2

An advantage of SMAW is:

Options :

A : equipment is very expensive

B : slag must be removed from weld passes

C : can be used on almost all commonly-used metal or alloy

D : deposition rates are much higher than for other processes

Answer: C

Question 3

Resistance to sulphidation is generally achieved by

Options :

A : Upgrading to higher nickel alloys

B : Upgrading to higher chromium alloys

C : Upgrading to higher copper based alloys

D : All of the above.

Answer: B

Question 4

A welder continuity log should be maintained to allow verification that each welder has utilized each welding

process within a _______ period.

Options :

A : one year

B : 3 month

C : 2 year

D : six month

Answer: D

Question 5

A combination of corrosion and erosion results in significantly greater metal loss that can be expected from corrosion or erosion alone. This type of loss occurs at

Options :

A : high-velocity and high-turbulence areas

B : areas where condensation or exposure to wet hydrogen sulphide or carbonates occur

C : surface-to-air interfaces f buried piping

D : areas where gradual loss of material occurs because of a corrosive medium

Answer: A

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