Porosity is a cavity-like discontinuity and occurs due to the entrapment of gases in the molten weld pool. These entrapped gases don't get a chance to escape from the molten weld pool and hence cause porosity.
<h3>Which discontinuities are caused during welding?</h3>
Weld discontinuities can be defined as "an interruption of the typical structure of a weld, such as a lack of homogeneity in the mechanical, metallurgical or physical characteristics of the weld." Porosity is considered to be the most critical discontinuity. Weld discontinuities include porosity, incomplete fusion, excessive melt.
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He is BAD. hewas a communist dictator of cuba in 1963. the us and cuba almost went to nuclear war
Answer:
Ask Questions from the crowd ask for ideas or make ur presentation more fun and pop
Explanation:
Answer:
Accidental reinforcement
Explanation:
Accidental reinforcement occurs when a reinforcer casually concurs with a positive outcome, so the person associate the outcome with the reinforcer. This type of reinforcement is usually the source of superstitious behaviours.
In this case, Roger associated the fact of wearing green underwear to the good grade he got in his test, the green underwear was the reinforcer that casually concurs with the positive outcome which in this case was the good grade, so Roger started associating both and now he wears green underwear on test days.
Answer:
Consumer: A person who purchases goods and services for personal use.
Needs: Of necessity
Wants: Have a desire to possess or do (something); wish for.
Priorities: The fact or condition of being regarded or treated as more important.
I don't know if this is exact but hope it helps anyway.
