Slag inclusions results from:
a. metal particles being sprayed out during the weld process
b. adding pieces of rod or metal as filler to the weld
c. solid non-metallic material being trapped in the weld
d. creation of a gas pocket due to trapped gases
e. stresses built up after the weld process
Answer: C
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Power Engineering Chapter 48
- When flame cutting, metal temperature must be brought above:
- A gas pocket or weld cavity caused by gas or moisture trapped in a weld is called:
- When a weld is made with two pieces of parent metal at or near the same plane the weld is termed a:
- When a weld pass is made to deposit a backing weld behind the root pass, it is termed:
- Coalescence is:
- When flame cutting, a blast of pure oxygen is directed into the heated metal to:
- When brought into an oxygen rich atmosphere, steel will burn at:
- When a filler rod and very hot flame are used in a welding process, the weld method is:
- What is the colour of the oxygen hose on a oxy-acetylene welding set
- When heat from electric current and pressure are used in welding it is known as:
- When acetylene is stored in a cylinder it is absorbed in:
- The oldest form of welding is: