The maximum service temperature copper soldered joints is 350°F.

The primary purpose of flux is to chemically clean.

An alloy is an intimate mixture of two or more metals.

Cylinders whether full or empty shall not be used ________ or supports.

The suggested shade number for filter lenses for soldering is _______

Types K, L and DWV are all considered to be water tube.

Flux should be applied with your fingers. T/F

Select types of copper tube joints

There is a universal flux for soldering and brazing.

ACR copper is capped at the manufacturer to precent tube contamination.

What rules should be observed when using paste solders?

Hose connections shall be kept free of______ an

A capillary action is the flow of liquid when drawn into large space between dry surfaces. T/F

Torches shall be lighted by _____ lighters or otl aproved devices

The suggested shade number for fitler lenses for torch brazing is a number ______

Soldering is done at teperatures above 840°F. T/F

For copper types K,L and M the outside diameter is the same. T/F

Heat effects the rate of oxidation on metals. T/F

When using a brazing alloy containing cadmuim beware of toxic fumes. T/F

ACR means air conditioning and refrigeration. T/F

COpper is considered to be a non-ferrous metal.. T/F

Fluxes are classified into what general groups?

The maximum service temperature copper brazed joints is 450°F. T/F