API-571

API-571 practice questions, page 14 of 18, with answer review and explanations.

Question 66

If the BHN is 400-500 it may indicate __________.

  1. Carburization
  2. Hydriding
  3. Temper embrittlement
  4. Caustic embrittlement

Question 67

The graphitization rate ____________ with increasing temperature

  1. Increases
  2. Decreases
  3. Stops
  4. Proceeds

Question 68

The level of creep damage is a function of the material and the coincident _________ level at which the creep deformation occurs.

  1. Pressure/Temperature
  2. Pressure/Stress
  3. Temperature/Stress
  4. None of the above

Question 69

Titanium should not be used in known hydriding services such as _____ or ______.

  1. Caustic, amine
  2. Amine, sour water
  3. Sour water, Alkylation
  4. All of the above

Question 70

Convert these temperatures – 156º C and 450º F

  1. 304º F, 151º C
  2. 284º F, 218º C
  3. 312º F, 232º C
  4. 296º F, 246º C