Pipefitter Pipe Testing and Inspection 2

Question 1

Which NDE method is best suited for detecting surface and near-surface defects in ferromagnetic pipe materials?

Accepted Answer

Magnetic particle testing (MT)

Answer

Liquid penetrant testing (PT)

Answer

Ultrasonic testing (UT)

Answer

Radiographic testing (RT)

Question 2

What does the abbreviation PMI stand for in the context of pipe inspection?

Accepted Answer

Positive Material Identification

Answer

Pipe Material Identification

Answer

Pressure Measurement Inspection

Answer

Pre-weld Material Inspection

Question 3

Which NDE method applies a colored or fluorescent dye to a surface, allows it to seep into defects, then draws it out with a developer for examination?

Accepted Answer

Liquid penetrant testing (PT)

Answer

Magnetic particle testing (MT)

Answer

Radiographic testing (RT)

Answer

Eddy current testing (ET)

Question 4

What must be done with pressure relief valves in a piping system before performing a hydrostatic pressure test?

Accepted Answer

Remove or isolate them from the test circuit

Answer

Open them fully to monitor pressure

Answer

Adjust them to the hydrostatic test pressure

Answer

Replace them temporarily with check valves

Question 5

What is the primary purpose of visual testing (VT) in piping inspection?

Accepted Answer

To identify surface defects, misalignment, and improper installation

Answer

To detect internal corrosion and wall thinning

Answer

To measure pipe wall thickness accurately

Answer

To verify the chemical composition of welds

Question 6

Which document is required to officially record the results of a piping pressure test, including hold times and inspector sign-off?

Accepted Answer

Pressure test record or test report

Answer

Weld Procedure Specification (WPS)

Answer

Material Test Report (MTR)

Answer

Isometric drawing

Question 7

According to ASME B31.3, what is the maximum allowable temperature of the test water used for hydrostatic testing?

Accepted Answer

120°F (49°C)

Answer

100°F (38°C)

Answer

150°F (65°C)

Answer

200°F (93°C)