Inspection of Raw Products• Forgings,• Castings,• Extrusions,• etc.

• Machining• Welding• Grinding• Heat treating• Plating• etc.

Inspection Following Secondary Processing

• Cracking• Corrosion• Erosion/Wear• Heat Damage• etc.

Inspection For In-Service Damage

Storage Tank InspectionRobotic crawlers use ultrasound to inspect the walls of large above ground tanks for signs of thinning due to corrosion.

Cameras on long articulating arms are used to inspect underground storage tanks for damage.

Pressure Vessel InspectionThe failure of a pressure vessel can result in the rapid release of a large amount of energy. To protect against this dangerous event, the tanks are inspected using radiography and ultrasonic testing.

Rail InspectionSpecial cars are used to inspect thousands of miles of rail to find cracks that could lead to a derailment.

NDT is used to inspect pipelines to prevent leaks that could damage the environment. Visual inspection, radiography and electromagnetic testing are some of the NDT methods used.

Remote visual inspection using a robotic crawler.

Radiography of weld joints.

Magnetic flux leakage inspection. This device, known as a pig, is placed in the pipeline and collects data on the condition of the pipe as it is pushed along by whatever is being transported.

Pipeline Inspection

Quiz time

• Which of the following is a destructive test ?

A: magnet particle

B: tensile testing

C: die penetrate testing

D: ultrasonic testing

Quiz time

• Which of the following is a destructive test ?

A: magnet particle

B: tensile testing

C: die penetrate testing

D: ultrasonic testing

Quiz time

• The _______ type hardness test leaves the least amount of damage on the metals surface.

A: Rockwell

B: Brinell

C: Scleroscope

D: Microhardness

Quiz time

• The _______ type hardness test leaves the least amount of damage on the metals surface.

A: Rockwell

B: Brinell

C: Scleroscope

D: Microhardness

Quiz time

• When a metal stretches, but dose not break under a certain load, this point is called the _________ Point.

A: yield

B: tensile

C: stretch

D: ultimate strength

Quiz time

• When a metal stretches, but dose not break under a certain load, this point is called the _________ Point.

A: yield

B: tensile

C: stretch

D: ultimate strength

Quiz time

• Ductility is the ability of a metal to ________ before it breaks.

A: Bend

B: Stretch or elongate

C: Be forged

D: Be indented

Quiz time

• Ductility is the ability of a metal to ________ before it breaks.

A: Bend

B: Stretch or elongate

C: Be forged

D: Be indented

Quiz time

• A Charpy test measures a welds ability to withstand _________ force.

A: Impact

B: Bending

C: Penetrating

D: Stretching

Quiz time

• A Charpy test measures a welds ability to withstand _________ force.

A: Impact

B: Bending

C: Penetrating

D: Stretching

Quiz time

• Hardness may be defined as the resistance to __________?

• Indentation • Elongation• Wear• Tear

Quiz time

• Hardness may be defined as the resistance to __________?

• Indentation • Elongation• Wear• Tear