What Is the Major Purpose of Pre- and Post-Heating Cast

question 20

Multiple Choice

What is the major purpose of pre- and post-heating cast iron for welding?

• A) To allow the weld to fuse deeper into the joint
• B) To control the rate of temperature change
• C) To reduce the carbon content in the casting around the weld, which makes it less brittle
• D) It helps the weld metal flow more evenly into the crack

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Definitions:

Anterograde Amnesia

A condition characterized by the inability to form new memories following the onset of the disorder, while long-term memories from before the event remain intact.

Prefrontal Cortex

The part of the brain located at the front of the frontal lobes, involved in complex behaviours such as planning, decision making, and moderating social behaviour.

Retrograde

Retrograde refers to moving backward or a decline in condition or quality.

Hippocampus

A major component of the brain, essential for learning and memory, located in the medial temporal lobe.