Piping &Piping Practices

What should you use to check for gas leaks, when a system is under pressure?

__________ is when copper tubing is bent or straightened more than necessary.

What type of fitting should not be used on natural gas piping ?

L-type copper is considered medium weight and is used most frequently.

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

For cleaning ACR copper tubing before soldering, a material that can be used is ____.

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

Brazing is done at ____ soldering.

When soldering, flux should be applied to ___

Molten solder flows between the two base metals being soldered because ____.

The maximum temperature at which soft soldering is done is ____.

_______ copper tubing sized by its OD and capped at both ends to keep clean and dry.

Alloy containing 15% to 60% silver or copper with phosphorous.

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

_________ uses temperatures over 800ºF to join tubing and piping

______________ removal of burrs and rough edges from tubing

Where is the point of delivery?

The proper type of flame from an oxyacetylene torch for silver brazing is ____.

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

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

When soldering or brazing, the solder is ____.

The use of flux is always required when soldering or brazing.

When soldering, why should flux be used?

Pipe threads are standardized by the A.N.S. A.N.S. stands for ____.

The tubing or pipe for natural gas supply to a gas heating unit is ____________________.

_________ caused by excessive bending and straightening of tubing.

______ softens work-hardened tubing by heating and allowing it to cool slowly

One reason for insulation on a suction line is to help maintain the proper ____________.

______ causes one end of a copper tube to expand at an angle for flare nut connection to system

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

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

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

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

Four tools needed to prepare & thread steel pipe are the pipe cutter, reamer, threader,______.

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

What should you use to pressure test a natural gas piping system?

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

_________ is the operation that allows two tubes of equal diameter to be joined together

The size indicated for the diameter of ACR copper tubing is the approximate ____.

As the length or run of gas increases, the pressure will________.

What is the proper manner in which to transport cutting oil?