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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Answer: A self-serving bias
Explanation: Another phenomenon studied in the field of social psychology is simply the tendency of people to attribute positive outcomes to themselves as an expression of their abilities, while attributing bad outcomes to some external "objective" circumstances. This kind of bias is visible in the sports as in this example but not only in sports, it can be seen in school, for example, in college when one considers his / her good grade for the reason that he / she has good predisposition for that material, i.e he / she is good in that material. not because s / he had a hard work of learning it.
Answer:
The answer is D. Correlational design.
Explanation:
Correlational designs seek to study the relationship between two or more variables in a piece of research. For example, a news article called "Students with healthy diets get better grades at school" is probably based in a correlational study.
It's important to recognise that correlation is <u>not</u> the same as causation. This means: even if two variables appear to be related, that does <u>not</u> indicate a direct cause-effect relationship.
Answer:
The answer is metacognition.
Explanation:
In simple words, metacognition is the process of thinking about the way we think. This can occur when we reflect on our feelings, or when we find the most effective way for us to learn.
When a child learns about multiplications, metacognition occurs after he/she understands the meaning of the concept (some children see it as adding the same number mutiple times).
Congress relies on a committee system since they aren't allowed to become an expert on the bills that are proposed each year. The members in this committee are allowed to become an expert of any bill they are working on. Congress has around 200 different committees in progress at any given time. The correct answer is B.
