« previous next »

Author Question: When grinding hardened steel, two kinds of surface failures are: A) Decarburization and pitting ... (Read 75 times)

justinmsk

  • Hero Member
  • *****
  • Posts: 524
on: Jul 26, 2018
When grinding hardened steel, two kinds of surface failures are:
 
  A) Decarburization and pitting
  B) Changes in hardness on the surface and internal stresses
  C) Porosity and discoloration from the quench medium
  D) None of the above

Question 2

Quench cracks may be caused by:
 
  A) Wrong selection of steel B) Time delay between quench and tempering
  C) Overheating D) All of the above


Qarqy

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Jul 26, 2018
Answer to Question 1

B

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

surface of a crimson clove surface of a crimson clove
Coronary circulation. (A) Coronary vessels portraying the complexity and extent of the coronary circ Coronary circulation. (A) Coronary vessels portraying the complexity and extent of the coronary circ
Nomogram for determining Body Surface Area (BSA). Nomogram for determining Body Surface Area (BSA).
Winds Aloft and Near the Surface: Gradient Flow Winds Aloft and Near the Surface: Gradient Flow
Variations in the Ocean’s Surface Temperature and Salinity with Latitude Variations in the Ocean’s Surface Temperature and Salinity with Latitude
Researchers compared the ability to recognize various kinds of facial expressions across young adult Researchers compared the ability to recognize various kinds of facial expressions across young adult
Video: Physiology of Asthma

For a complete list of videos, visit our video library