Copper and Brazing

Question 1

To heat and then cool the pipe in order to soften and make the pipe more flexible

Answer 1

Anealing

Question 2

A fitting designed to join a tube by means of pressure or friction

Answer 2

Compression fittings

Question 3

To spread the end of the tube

Answer 3

Flaring

Question 4

Generally recommended for exposed lines such as hot and cold

Answer 4

Hard temper tube

Question 5

Type K colour and thickness

Answer 5

Green, Thickest wall

Question 6

Type L colour and thickness

Answer 6

Blue, Medium wall

Question 7

Type M colour and temper

Answer 7

Red, Hard temper only

Question 8

Type H colour

Answer 8

White

Question 9

DWV Colour

Answer 9

Yellow

Question 10

Copper tube has ____________ than copper pipe

Answer 10

thinner walls

Question 11

Copper pipe is measured by what standard

Answer 11

NPS

Question 12

Copper tube is measured by

Answer 12

OD

Question 13

Copper Joint Types

Answer 13

Soldered, Compression, Flared, Press connect

Question 14

Does pressure fittings have a small or large cup

Answer 14

Large

Question 15

Molten brass in a mould (sandy rough) is called

Answer 15

Cast Brass

Question 16

Finished brass (smooth and yellow) is called

Answer 16

Barstock

Question 17

Pressure heated fittings in a die is called

Answer 17

Wrot copper

Question 18

Red Brass consists of what % copper and what % zinc

Answer 18

85% and 15%

Question 19

Yellow Brass consists of what % copper and what % zinc

Answer 19

66% and 34%

Question 20

bronze consists of what

Answer 20

90% copper 10% tin

Question 21

Soft soldering is heated 450 degrees and…

Answer 21

Lower

Question 22

Hard soldering is heated 450 degrees and…

Answer 22

higher

Question 23

BAg is made of what and used for?

Answer 23

Silver, dissimilar metals

Question 24

BCuP is made of what and used for?

Answer 24

Copper, copper to copper

Question 25

What does RB stand for in brazing

Answer 25

Rod Brazing

Question 26

What fumes are considered very toxic to inhale

Answer 26

Zinc and Cadium

Question 27

Manual Torch brazing

Answer 27

Carborizing 2.5x-3x

Question 28

BAg covers a wide range of temperatures from

Answer 28

618 to 1038 degrees celsius

Question 29

Lead melts and solidifies at A) 334 B)330 C)331 D)325

Answer 29

D

Question 30

50/50 begins to and melts at

Answer 30

182, 250

Question 31

Higher what makes a smother joint

Answer 31

Tin

Question 32

Any solder that contains ___ lead cant be used for potable water

Answer 32

0.2%

Question 33

Long, thin, and pointed cone is created by what tips

Answer 33

Swedge

Question 34

Short, thick, and boulbos is created by what

Answer 34

Straight bore

Question 35

Draws molten solder into narrow Gap of the joint

Answer 35

Capilary Action