API Piping Inspector Sample Questions:

1. A piping system has a corrosion rate of 0.074 inches per year, the actual wall thickness is 0.370 inches and the minimum required thickness is 0.1 inch.
What is the remaining life?

A) 364.8 years
B) 3.6 months
C) 3.6 years
D) 36.48 years

2. An operator notice a pipe off its support, what should be done?

A) Report the situation to engineering or inspection personnel
B) Ignore the situation
C) Contact maintenance personnel for immediate repair
D) Keep a record of the situation for future reference

3. A pipe has the highest potential of resulting in an immediate emergency if a leak were to occur.

A) Class 1
B) Class 2
C) Owner/user designated system
D) Class 3

4. A leak test is an alternative to inspection of buried piping.
What is the minimum liquid pressure to adequately conduct this test?

A) 10% greater than MAWP
B) Actual MAWP
C) 1 1/2 times the MAWP
D) 1 1/4 times the MAWP

5. The radiograph of a Normal Fluid service piping weld revealed a crack.
What is the acceptable crack length if the pipe wall was 0.375?

A) T/3
B) None
C) Cracks will not show on radiographs
D) 3/16"

Solutions: