Napping Usually Subsides

question 98

Multiple Choice

Napping usually subsides

• A) around 6 to 9 months.
• B) by about 18 months.
• C) between 18 months and 2 years.
• D) between 3 and 5 years.

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Definitions:

Countersink

A conical-shaped recess around a hole often used to allow the flat head of a screw or bolt to sit flush with or below the surface of the material.

Plug Weld

A weld made in a circular hole in one member of a joint fusing it to the surface of another member.

Weld Symbol

A standardized symbol on technical drawings specifying the type, location, and details of welds required for joining pieces of metal.