Oxy Fuel Equipment

Question 1

3 Parts of fire triangle

Answer 1

heat
oxygen
fuel

Question 2

class a fire

Answer 2

wood and paper

Question 3

class b fire

Answer 3

flammable liquids

Question 4

class c fire

Answer 4

electrical

Question 5

class d fire

Answer 5

combustible metals

Question 6

class k fire

Answer 6

cooking grease

Question 7

symbol for class a

Answer 7

green triangle

Question 8

symbol for class b

Answer 8

red square

Question 9

symbol for class c

Answer 9

blue circle

Question 10

symbol for class d

Answer 10

yellow star

Question 11

full psi of oxygen bottle

Answer 11

2200 psi

Question 12

psi oxygen are tested to

Answer 12

3360

Question 13

psi rupture disc on oxygen tank is set for

Answer 13

3200 psi

Question 14

explosive range of acetelene

Answer 14

2.5-80%

Question 15

Maximum safe working psi of Acetylene

Answer 15

15 psi

Question 16

draw limit of acetelene

Answer 16

1/7 an hour

Question 17

melting temperature of the fusible plugs in acetylene cylinder

Answer 17

100c

Question 18

how much to open acetelene tank

Answer 18

1.5-2 turns

Question 19

thread type on acetelen tank

Answer 19

female left hand thread

Question 20

general rule for welding tips on torch

Answer 20

same psi for tip size

3 psi of oxygen and acetelene for a #3 tip

Question 21

flame rich in acetylene

Answer 21

carbonizing

Question 22

flame with no excess oxygen or acetylene

Answer 22

neutral flame

Question 23

flame rich in oxygen

Answer 23

oxidizing flame

Question 24

flame best used for fusion welding of brass and bronze

braze welding of copper and galvanized iron

Answer 24

oxidizing flame

Question 25

flame best used for fusion welding of low carbon steels, aluminum and cast iron and flame cutting

Answer 25

neutral flame

Question 26

flame used for high carbon steels, hard surfacing

Answer 26

carbonizing flame