CWB Level 2 Welding Inspector Certification Exam | 100+ Questions and Answers Rated A+ | 2026/2027 Guide

CWB Level 2 Welding Inspector
Certification Exam | 100+ Questions and
Answers Rated A+ | 2026/2027 Guide

Submerged arc welding fluxes perform functions similar to those used on
shielded metal arc welding electrodes however they are designed to
handle:

a) Lower amperage ranges

b) Currents over 2000 amps

c) Higher extrusion pressures

d) Only direct current electrodes - Correct Answer - b) Currents over
2000 amps



When defining the position of capability for FCAW stainless steel
electrodes a "O" indicates the electrode can be used for:

a) All position welding

b) Vertical down fillets and grooves only

c) Flat grooves and horizontal fillets only

d) Overhead fillets and grooves only - Correct Answer - c) Flat grooves
and horizontal fillets only

,Basic type flux cored electrodes operate on:

a) DCEP only and give a smooth spray type arc

b) DCEP and DCEN and are characterized by globular transfer

c) DCEN only and are characterized by globular transfer

d) DCEP only and give a rough spray type arc - Correct Answer - b)
DCEP and DCEN and are characterized by globular transfer



Which of the following is considered to be a Low Alloy Steel Electrode?

a) E4927

b) E4922

c) E4918

d) E4918-A1

e) E7018-R - Correct Answer - d) E4918-A1



The toughness of submerged arc welding weldments is affected when
____ is present in the weld

a) Nitrogen

b) Oxygen

c) Aluminum

d) co2 - Correct Answer - b) Oxygen

,Welds made with self-shielded electrodes can suffer from excessive
nitrogen absorption. Excessive nitrogen in the weld pool will result in:

a) Gross porosity during solidification

b) Oxides that are removed by the fluxing action

c) No noticeable weld deposit defects

d) Cracking in the centre of the weld deposit - Correct Answer - a) Gross
porosity during solidification



When welding aluminum with the gas tungsten arc process using a pure
tungsten electrode a ball is formed on the end. This is accomplished by:

a) Striking an arc on a steel block using DCEP polarity

b) Striking an arc on a copper block using AC or DCEP polarity

c) Striking an arc on the aluminum using DCRP

d) Grinding a ball on the end of the tungsten - Correct Answer - b)
Striking an arc on a copper block using AC or DCEP polarity



Gas metal arc welding electrodes for welding aluminum have a wider
range of alloys available than shielded metal arc welding. Which series
of alloys is available for gas metal arc welding but not available for
shielded metal arc welding?

a) 5xxx

b) 9xxx

c) 4xxx

, d) 3xxx - Correct Answer - a) 5xxx



Slag from shielded metal arc welding electrodes used to weld aluminum
can be corrosive if not completely removed, In some cases washing the
final weld with hot water and will remove any residual slag and reduce
corrosion

a) 5% silver nitrate

b) 10% sulphuric acid

c) 5% nitric acid

d) 15% hydrochloric acid - Correct Answer - c) 5% nitric acid



What does the third digit (E4918) in the identification system of covered
electrodes represent?

a) Weld deposit strength

b) Type of coating

c) Position of welding

d) Type of current - Correct Answer - c) Position of welding



Which type of cored wire is most suitable for open air field work?

Gas shielded flux cored wire?

Self shielded flux cored arc wire?

Metal cored wire? - Correct Answer - Self shielded flux cored wire.