Deck 13: Flux Cored Arc Welding Equipment and Materials

Question 1

Cooling water can be supplied directly from the building's water system, or it can be supplied from a ____.

A) recirculation system
B) feed system
C) piping system
D) ventilation system

Answer 1

A

Question 2

The FCA welding equipment, setup, and operation are similar to that of the GTA welding process.

Answer 2

False

Question 3

The American Welding Society (AWS) has a standard for the size of each of the package units and for the weight of filler wire.

Answer 3

False

Question 4

One method of FCA welding done without a gas shield is called ____.

A) self-shielding
B) nongas-shielding
C) custom-shielding
D) thermal-shielding

Question 5

Base chemicals are the opposite of acids.

Question 6

FCAW filler metal weights will vary by alloy and manufacturer.

Question 7

A large quantity of smoke that can be generated during FCA welding.

Question 8

Electrodes are available in sizes from 0.030 in. to ____ in diameter.

A) 3/32 in.
B) 5/32 in.
C) 3/16 in.
D) 1/4 in.

Question 9

The impurities in the weld pool can be metallic or nonmetallic compounds.

Question 10

FCA welding deposition rates of more than ____ of weld metal are possible.

A) 1.4 lb/hr
B) 4.5 lb/hr
C) 11 lb/hr
D) 25 lb/hr

Question 11

Oxygen present in the welding zone can exist as part of a compound such as iron oxide or ____.

A) acetylene
B) carbon dioxide
C) acetaldehyde
D) argon-oxygen

Question 12

Carbon, chromium, and vanadium are some of the alloying elements that can be added to improve hardness, strength, creep resistance, and ____ resistance.

A) impact
B) fatigue
C) corrosion
D) wear

Question 13

Molten weld metal tends to have a low surface tension.

Question 14

One advantage of mechanically cleaning oil and paint is that it is easier to clean larger areas.

Question 15

Water pressures higher than 35 psi may cause the water hoses to burst.

Question 16

Often, it is better to remove the mill scale before welding rather than risking the production of ____.

A) corrosion
B) fumes
C) porosity
D) waste

Question 17

T-1 fluxes are ____.

A) lime-based fluxes
B) bases
C) rutile-based fluxes
D) nonacids

Question 18

____ type electrodes may be used for single- and multiple-pass welds in the flat (1G and 1F) position only.

A) T-2
B) T-3
C) T-4
D) T-5

Question 19

All welding machines are capable of providing both CP and CC welding currents.

Question 20

The AWS classification for stainless steel for FCAW electrodes starts with the letter ____ as its prefix.

A) B
B) C
C) D
D) E

Question 21

FCA welding electrodes are available as seamed and ____________________ type electrodes.

Question 22

The AWS has specifications for both cast and ____________________ for all FCA welding wires.

Question 23

Sometimes the shielding gas is referred to as the shielding ____________________.

Question 24

Electrode feed systems are sometimes called ____________________.

Question 25

FCA welding guns are available as two types: water-cooled or ____________________.