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CWB
STUDY GLOBAL 5/8/25 CWB
,Here’s a concise and focused study guide for the CWB Level 1 Welding Processes and Equipment Exam:
CWB Level 1 Welding Processes & Equipment Study Guide
1. Welding Processes Overview
Arc Welding: Utilizes an electric arc to melt metal and form the weld.
MIG (Metal Inert Gas): Continuous wire feed with shielding gas to protect the weld.
TIG (Tungsten Inert Gas): Uses a non-consumable tungsten electrode for precise welding.
Stick Welding (SMAW): Uses an electrode coated in flux to create a weld.
Flux-Cored Arc Welding (FCAW): Similar to MIG, but uses a flux-cored wire for better
penetration.
2. Equipment & Tools
Welding Machine: Power supply that provides the necessary voltage and amperage.
Electrodes: Consumable rods used in welding processes (stick, MIG, FCAW).
Wire Feed: Supplies filler metal in MIG and FCAW welding.
Torch: The handheld tool that holds the electrode and directs the heat.
Protective Gear: Includes gloves, helmets (with proper shade lenses), jackets, and aprons.
3. Welding Techniques
Torch Position: Proper positioning affects the heat distribution and the quality of the weld.
Weld Bead: A smooth, uniform deposit of filler metal along the joint.
Heat Control: Proper heat management ensures strong, clean welds and prevents defects.
4. Safety Measures
Personal Protective Equipment (PPE): Always wear proper gloves, helmets, and jackets.
Ventilation: Ensure a well-ventilated area to avoid inhaling welding fumes.
Fire Prevention: Be aware of your surroundings, and keep fire extinguishers nearby.
5. Basic Welding Joints
Butt Joint: Weld between two pieces aligned edge-to-edge.
Fillet Joint: A joint formed by two pieces at a right angle.
Tee Joint: Where one piece is welded perpendicular to the surface of another.
Corner Joint: Where two pieces meet at a right angle at the corner.
6. Common Defects
Porosity: Small holes due to trapped gas in the weld.
Cracking: Can occur from rapid cooling or improper technique.
Undercutting: A groove formed at the base of the weld, weakening it.
Key Points to Remember
Be familiar with equipment setup, techniques, and safety standards.
Understand the basic welding processes and their applications.
Study common defects and how to avoid them.
Introduction
This section covers key concepts and practical knowledge related to welding processes and equipment.
The questions will test your understanding of various welding techniques, equipment setup, safety
protocols, and common defects. Be prepared to demonstrate both theoretical knowledge and practical
application of welding principles in a controlled environment.
, QUESTIONS:
MCAW uses a ________ push (forehand) technique for optimal bead shape and appearance. (Multiple
choice)
Question 1 options:
A) 10° to 20°
B) 20° to 30°
C) 5° to 15°
D) 15° to 30° - Accurate answers A) 10° to 20°
In MCAW, the burning of the wire is______________due to the deoxidizers and arc stabilizers added to
the flux. (Multiple choice)
Question 2 options:A) faster and higher in deposition rates.B) unstable and undesirable.C) hotter and
unpredictable.D) cleaner and more stable. - Accurate answers D) cleaner and more stable.
MCAW is primarily used for production welding of low-carbon steel. (True/False) - Accurate answers
True
The function of the ingredients in the electrode coating of SMAW electrodes is to: (Multiple choice)
Question 4 options:A) provide a gas shield, slag covering, arc stabilization, and add additional alloying
elements.B) react with the base metal to assist in the weld fusion.C) remove rust, mill scale, and other
contaminants from the surface of the joint.D) counteract the effects of arc blow. - Accurate answers
A) provide a gas shield, slag covering, arc stabilization, and add additional alloying elements.
Which of the following does the welder manipulate when using the SMAW processes? (Multiple choice)
Question 5 options:A) The temperature of the arc, the gas mixture, and the size of flux granules.B) The
current setting, the speed of travel, the arc length, and the electrode angle.C) The current setting, the
temperature of the arc, the arc length, and the electrode angleD) The voltage setting, the speed of
travel, the arc length, and the electrode angle. - Accurate answers B) The current setting, the speed
of travel, the arc length, and the electrode angle.
How many times may low-hydrogen SMAW electrodes be rebaked? (Multiple choice)
Question 6 options:A) One time.B) Two times.C) Three times.D) Four times. - Accurate answers A)
One time.
The components of the SMAW system are: (Multiple choice)
Question 7 options:A) CV power supply, welding gun, ground cable, and external shielding gas.B) CV
power supply, welding gun, and ground cable.C) CC power supply, electrode holder, and ground cable.D)
CC power supply, electrode holder, ground cable, and external shielding gas. - Accurate answers C)
CC power supply, electrode holder, and ground cable.
What do the first two digits of a shielded metal arc welding electrode classification indicate? (Multiple
choice)
Question 8 options:A) The weld deposit strength.B) The deposition rate of the electrode.C) The yield
strength of the electrode.D) The type of electrode coating. - Accurate answers A) The weld deposit
strength.