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Ninth Grade (Grade 9) Welding and Metal Fabrication Questions

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Grade 9 Welding and Metal Fabrication
The slower the metal cools; the greater the quenching effects
  1. True
  2. False
Grade 9 Welding and Metal Fabrication
Quenching is the process of rapidly cooling a metal.
  1. True
  2. False
Grade 9 Welding and Metal Fabrication
This inspection uses fine particles to indicate defects on surface.
  1. magnetic particle
  2. visual testing
  3. radio graphic
  4. penetrate
Grade 9 Welding and Metal Fabrication
What is used to reduce the rate at which welds cool?
  1. Preheating
  2. Annealing
  3. Normalizing
Grade 9 Welding and Metal Fabrication
Latent Heat: heat required to change matter from one state to another and does not result in temperature change
  1. True
  2. False
Grade 9 Welding and Metal Fabrication
Impact testing is used to determine impact capability of a weld
  1. True
  2. False
Grade 9 Welding and Metal Fabrication
Depth of the weld, penetration of joint is less than needed                            
  1. incomplete fusion
  2. arc strikes
  3. inadequate joint penatration
  4. undercut
Grade 9 Welding and Metal Fabrication
VT stands for Visual Testing
  1. True
  2. False
Grade 9 Welding and Metal Fabrication
Heat is classified into 3 forms
  1. True
  2. False
Grade 9 Welding and Metal Fabrication
The most common etching solution is hydroelectric power
  1. True
  2. False
Grade 9 Welding and Metal Fabrication
The 2 purposes of etching are to determine soundness and location.
  1. True
  2. False
Grade 9 Welding and Metal Fabrication
This inspection detects flaws by taking a picture.
  1. magnetic particle
  2. visual testing
  3. radio graphic
  4. penetrate
Grade 9 Welding and Metal Fabrication
The US unit of measure for heat is British Thermal Unit
  1. True
  2. False
Grade 9 Welding and Metal Fabrication
Sensible Heat - Heat required to change matter from one state to another and does not result in temperature change
  1. True
  2. False
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