EXAM Latest Update Questions and

CWB Level 2 Visual Weld Inspector Actual EXAM Latest Update Questions and Correct Answers Rated A+

Which gases are used with the GMAW process -ANSWER-argon and CO2 and their mixtures in various proportions

Which welding process is non-consumable electrode process -

ANSWER-GTAW

Which shielding gas does GMAW use for spray transfer -ANSWER- 95% Argon and 5% CO2

The deposition rate of SMAW electrodes is increased by including - ANSWER-Iron Power

Electrode in Flux cored are welding is -ANSWER-Tubular wire containing flux or other ingredients

What welding process is not used in overhead position -ANSWER- SAW (Submerged Arc Welding

SAW Fluxes that significantly influence the composition of the weld metal through slag/metal reactions are called -ANSWER-are classified in conjunction with welding wire forming a flux designation

A welding arc consists of a -ANSWER-high current and low voltage

The heat of the welding arc is used to -ANSWER-locally melt the base material and filler material to create fusion upon solidification

Welding using GTAW process with current set to DCEN -ANSWER- 30% arc heat at the electrode and 70% arc heat at the work

The function of the ingredients in the electrode coating of SMAW electrodes is to -ANSWER-provide a gas shield, slag covering, scavengers, arc stabilization and additional alloying elements

The temperature for holding low hydrogen electrodes -ANSWER-120 C

The GMAW process uses (Blank) to shield the molten weld from the atmosphere -ANSWER-external shielding gas

The flux cored arc welding is an arc welding process usually in the

semi-automatic mode, consisting of: -ANSWER-A constant current

power supply, a continuous speed wire feeder, a welding gun, and a continuous filler metal electrode with a hallow core containing flux and other ingredients

Welding is process a joining process that by definition requires application of -ANSWER-Either heat or pressure

Name the two main methods of arc shielding -ANSWER-flux shielding and gas shielding

Which direction do the electrons flow in an electrical are -ANSWER- Cathode to anode

In are welding, the electric are is intensely hot with temperature exceeding -ANSWER-30,000 C

How does the arc voltage and arc stiffness change when the arc length is increased -ANSWER-Arc voltage increases and arc stiffness decreases

What type of penetration and weld width can be expected when using DC positive (GTAW) -ANSWER-Shallow penetration and a wide weld

Which polarity is chosen most often for direct current GTAW welding of steels and why -ANSWER-Direct current electrode negative. More heat is produced at the work piece leading to deeper weld penetration

Why must shielding gas for GTAW be completely inert -ANSWER- Presence of active gases like oxygen and carbon dioxide the tungsten electrode and the limit its life.

Two advantages of GTAW process -ANSWER-It gives high quality deposits, and the process can be used to weld virtually all metals and alloys

Why is SMAW a very commonly used welding process -ANSWER-It provides great flexibility in terms of the broad range of materials and their thicknesses that can be joined in all welding positions

SMAW uses constant current or constant voltage -ANSWER-constant current

Why is care necessary in the proper storage and handling of electrodes for welding steels -ANSWER-Improperly stored electrodes can pick up moisture leading to increased weld metal hydrogen content and therefore increased risk of cold cracking in the weld zone

GMAW uses Constant Voltage or Constant Current -ANSWER- Constant Voltage

Which metal transfer would be applied to Cast Iron -ANSWER-

GMAW: Short Circuiting

Which metal transfer would be applied to aluminum alloy -ANSWER-

GMAW: Spray

Between 100% CO2 and 95% Ar-5% CO2, which shielding gas will you chose to spray in semi-automatic welding of carbon steel - ANSWER-95% Ar - 5% CO2

Most common gas used with gas shielded flux cored are welding is - ANSWER-75% Ar - 25% CO2

The type of cored wire most suitable for air field work is -ANSWER- Self-shielded flux core are wire

Gas shielded flux core wires with basic ingredients are -ANSWER-not suited for welding out of position welds

The technique used for semi-automatic welding with gas shielded flux cored arc welding -ANSWER-drag (backhand)

In submerged arc welding process, granular flux is placed on the unwelded seam (Blank) of the consumable electrode -ANSWER- ahead

What is the effect of change polarity from DCEP to DCEN on a submerged arc welding weld deposit -ANSWER-The deposition rate