Question 1

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 2

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 3

A NPS 4 Schedule 80 (0.337" wall) branch connection is welded into a NPS 6 Schedule 40 (0.280" wall). A 0.375" reinforcing pad is used around the branch connection. The fillet weld sizes are as required by the Code. The branch connection is inserted into the header. The material of the branch and header is ASTM A672 Grade B70. What thickness would be used to determine whether heat treatment of the connection is required ? (Express answer to nearest hundredth)

Options :

A : 0.768"

B : 0.891"

C : 0.998"

D : 0.567"

Answer: B

Question 4

Who is responsible for the control of piping system inspection programs, inspection frequencies and maintenance of piping ?

Options :

A : Authorised Piping Inspector

B : Owner-user

C : Jurisdiction

D : Contractor

Answer: B

Question 5

A welder continuity log should be maintained to allow verification that each welder has utilized each weldingprocess within a _______ period.

Options :

A : one year

B : 3 month

C : 2 year

D : six month

Answer: D

Free API-570 Mock Exam – Practice Online Confidently

Buying Options: