Which Component of Air Is the Primary Problem in a Condition

question 116

Multiple Choice

Which component of air is the primary problem in a condition known as "the bends?"

• A) N₂
• B) He
• C) CO₂
• D) CO
• E) O₂

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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.