Exam 7: Tubing and Piping

The copper tubing used in the field piping of refrigeration systems is type ____________________.

The abbreviation for the plastic pipe used in high pressure systems at low temperature is ____________________.

In the thread specification 1/2-14 NPT, the 14 stands for ____________________.

In the thread specification 1/2-14 NPT, the 1/2 is the ____________________.

Brazing is done at ____ soldering.

When soldering or brazing, the solder is ____.

Filler materials used in the high temperature connection of copper joints are composed of ____.

ABS and PVC pipe can be used to carry the new blended refrigerants in low temperature applications.

The size indicated for the diameter of copper tubing used for plumbing is the ____.

An air-acetylene unit usually consists of a B tank of acetylene gas, a regulator, a hose, and a torch .

The abbreviation for the plastic pipe used in hot and cold water supply systems is ____________________.

DWV copper stands for drain, waste and vent and is also a lightweight copper not typically used in the HVACR industry as far as refrigerant-carrying applications are concerned.

When soldering, the technician should heat the solder with the torch to allow it to melt.

What are two purposes for using insulation on the suction line?

K-type copper is heavy duty with a thick tubing wall.

Four tools that are needed to properly prepare and thread steel pipe are the pipe cutter, reamer, threader, and ____________________.

95/5 tin-antimony solder can be used in any part of a refrigeration system.

The abbreviation for the plastic pipe used in systems for water and gas supply lines and irrigation systems is ____________________.

The end of a piece of a steel pipe is reamed after it is cut with a pipe cutter to make it easier to start the thread die.

When joining steel pipe, a ____ should be applied to the threads before connecting.