Which of the following statements is not true concerning surface finishing?
Cleaning operations are considered to be surface finishing process.
Surface finishing is often performed for corrosion protection.
Surface finishing is not typically followed by further processes.
Surface finishing is sometimes performed to improve surface and near-surface mechanical properties.
Carburizing and flame hardening are examples of:
annealing process
case hardening process
process that produce ductile surfaces
electrochemical processes
Which of the following nondestructive tests would provide the best results in measuring the case depth on a case hardened part?
Ultrasonic immersion testing using a very low frequency probe
Radiography
Eddy current
Magnetic particle
All of the above could provide case depth measurement
