HVA 121 QUIZ ONE (Latest Update 2026 /
2027) Questions & Answers {Grade A}
100% Correct
The measured length of a pipe should include the distance between the fitting faces
plus ______________________. - correct answer the cup depth of the two fittings.
Acetylene becomes unstable when the pressure is above _________ - correct answer 15
psig
The desired joint clearance for a brazed copper joint is _____________. - correct answer
0.003 to 0.005"
True or False: Brazing always requires the use of acetylene and oxygen. - correct
answer False
, The type of brazing filler that contains cadmium is _____________. - correct answer bag-
1 or bag-2
The filler materials commonly used for brazing melt at a temperature range of
_________ - correct answer 850* F to 1200* F
The flame used for almost all heavy brazing applications is an ____________. - correct
answer Neutral flame
Reducing the surface tension so that molten solder flows evenly throughout the joint is
called __________________. - correct answer wetting
Metals and alloys that do not contain iron are referred to as being _____________. -
correct answer nonferrous
2027) Questions & Answers {Grade A}
100% Correct
The measured length of a pipe should include the distance between the fitting faces
plus ______________________. - correct answer the cup depth of the two fittings.
Acetylene becomes unstable when the pressure is above _________ - correct answer 15
psig
The desired joint clearance for a brazed copper joint is _____________. - correct answer
0.003 to 0.005"
True or False: Brazing always requires the use of acetylene and oxygen. - correct
answer False
, The type of brazing filler that contains cadmium is _____________. - correct answer bag-
1 or bag-2
The filler materials commonly used for brazing melt at a temperature range of
_________ - correct answer 850* F to 1200* F
The flame used for almost all heavy brazing applications is an ____________. - correct
answer Neutral flame
Reducing the surface tension so that molten solder flows evenly throughout the joint is
called __________________. - correct answer wetting
Metals and alloys that do not contain iron are referred to as being _____________. -
correct answer nonferrous
