Question

please select the correct answer from the dropdown list on the right.

1. a protective screen set up around a welding operation to safeguard workers not directly involved in that operation is a(n) ______
2. a process using heat in excess of 800°f (427°c) to melt base metal, along with a filler metal in order to join copper pipe is called ______
3. filters designed to capture very small particles are known as ______
4. a structure that is used to protect workers in trenches, but lacks the ability to prevent cave - ins is ______
5. working near a hazard, but not actually in contact with it is known as ______
6. a vertical barrier called a(n) ______ is used at floor level on scaffolds to prevent materials from falling.
7. a(n) ______ shows which way the wind is blowing.

options (partial): high efficiency particulate air (hepa) filters, proximity work, brazing, toeboard, wind sock, shielding, welding curtain

Explanation:

Question 1

A protective screen around welding to safeguard workers (not direct op) is a welding curtain.

Process with heat >800°F to melt base metal + filler for copper pipe is brazing (brazing uses heat above 800°F for joining, unlike welding sometimes, and is used for copper pipes).

Filters for very small particles: High Efficiency Particulate Air (HEPA) filters capture tiny particles.

Answer:

Welding curtain

Question 2