BRAZING EXAM SCRIPT UPDATED COMPLETE QUESTIONS AND ANSWERS GRADED APLUS.pdf

BRAZING EXAM SCRIPT UPDATED
COMPLETE QUESTIONS AND ANSWERS
GRADED APLUS

●● The copper tubing used for air conditioning and refrigeration ( ACR )
is measured using the ;
Answer: B. outer diameter


●● The types of copper tubing used for air conditioning and
refrigeration are ;
Answer: A. type L and type K.


●● The small tubing cutters used to cut copper in close quarters are
sometimes called
Answer: A. IMP tubing cutters .


●● The tank used for acetylene in portable oxyacetylene kits is typically
a(n);
Answer: B. " MC " tank ( 10 cubic feet ) .


●● Once copper tube has been cut with a tubing cutter , the end should
be ;

, Answer: A. deburred or reamed to clear away any metal shavings or
burrs .


●● Flaring is the process of expanding the end of a copper tube ;
Answer: D. into a funnel shape that fits a male fitting .


●● A flare tool with a burnishing cone will put a polished finish on the
flare and will make a perfect ;
Answer: C. 45 ° flare for a good seal .


●● will slide into the joint , The process of expanding eliminating the
need for a fitting , is called ; one end of a copper tube so that a tube of
the same diameter
Answer: D. swaging .


●● A system for joining copper tubing that uses a powered tool with
interchangeable jaws for different size piping and fittings is called
Answer: B. crimping system .


●● Purging nitrogen through the lines during brazing will displace any
oxygen in the tubing and prevent ; c
Answer: D. oxidation or scale formation .


●● Brazing is a procedure by which tubing is joined by ;