CSWIP Multiple Choice Questions - Paper 1 Quiz

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  • 1/30 Questions

    Which mechanical test can be used to measure the toughness of weld metal, HAZ and parent metal?

    • Macro
    • Nick Break
    • Hardness
    • Charpy impact
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CSWIP Quizzes & Trivia
About This Quiz

This CSWIP Multiple Choice Questions - Paper 1 quiz evaluates knowledge on welding inspection, focusing on mechanical tests, destructive tests, and fabrication standards. It measures skills crucial for welders and inspectors, enhancing understanding of weld quality and compliance with industry standards.

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  • 2. 

    Which is the best destructive test for showing lack of sidewall fusion in a 25mm thickness butt weld?

    • Nick break

    • Side bend

    • Charpy impact

    • Face bend

    Correct Answer
    A. Side bend
    Explanation
    The best destructive test for showing lack of sidewall fusion in a 25mm thickness butt weld is the side bend test. This test involves bending the welded specimen to assess the integrity of the fusion between the sidewalls. If there is a lack of fusion, cracks or separation will be visible on the bent surface, indicating a defect in the weld. The other options, such as nick break, Charpy impact, and face bend, are not specifically designed to assess sidewall fusion and may not provide accurate results in this case.

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  • 3. 

    The principal purpose of a welder qualification test is to:

    • Test the skill of the welder

    • Assess the weldability of the materials

    • Decide which NDT methods to use

    • Give the welder practice before doing production welding

    Correct Answer
    A. Test the skill of the welder
    Explanation
    The principal purpose of a welder qualification test is to evaluate and assess the skill level of the welder. This test is designed to measure the welder's ability to perform specific welding tasks and techniques, ensuring that they meet the required standards and specifications. It is used to determine if the welder possesses the necessary skills and knowledge to carry out welding activities safely and effectively. The test aims to validate the welder's competency and ensure that they are qualified to perform welding tasks in a professional and reliable manner.

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  • 4. 

    A Fabrication procedure calls for the toes of all welds to be blended in by grinding. The reason for this is to:

    • Make the weld suitible for liquid (dye) penetrant inspection.

    • Improve fatigue life.

    • Reduce residual stresses

    • Improve the general appearance of the welds

    Correct Answer
    A. Improve fatigue life.
    Explanation
    Grinding the toes of all welds helps to improve fatigue life. By blending in the welds, any stress concentration points or sharp edges are removed, which can reduce the likelihood of crack initiation and propagation. This helps to enhance the overall strength and durability of the weld, making it more resistant to fatigue failure over time.

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  • 5. 

    For full penetration single-sided butt joints, root bead penetration and profile are mainly influenced by:

    • Root face

    • Bevel angle

    • Root gap

    • Included angle

    Correct Answer
    A. Root gap
    Explanation
    Root gap refers to the distance between the edges of the two metal pieces being joined in a butt joint. In full penetration single-sided butt joints, the root gap plays a crucial role in determining the root bead penetration and profile. A larger root gap allows for deeper penetration of the root bead, resulting in a stronger and more secure joint. On the other hand, a smaller root gap may lead to insufficient penetration and weaker joint strength. Therefore, the root gap directly influences the quality and effectiveness of the joint in full penetration single-sided butt joints.

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  • 6. 

    Which of the following would be cause for rejection by most fabrication standards when inspecting fillet welds with undercut, a small amount of:

    • Depth

    • Length

    • Width

    • Sharpness

    Correct Answer
    A. Sharpness
    Explanation
    Sharpness would be a cause for rejection by most fabrication standards when inspecting fillet welds with undercut. This is because sharpness indicates that the weld has not been properly filled and smoothed, which can weaken the joint and increase the risk of failure. A smooth and rounded fillet weld is preferred as it ensures proper fusion and strength between the two pieces being joined.

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  • 7. 

    When visually inspecting the root bead of a single V-butt weld it should be checked for:

    • Lack of root penetration

    • HAZ hardness

    • Tungsten inclusions

    • Slag

    Correct Answer
    A. Lack of root penetration
    Explanation
    When visually inspecting the root bead of a single V-butt weld, one should check for lack of root penetration. This refers to the situation where the weld does not fully penetrate the joint, resulting in a weak and incomplete bond. By checking for lack of root penetration, one can ensure the integrity and strength of the weld.

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  • 8. 

    The strength of a fillet weld is determined by:

    • Leg length

    • Weld profile

    • Weld width

    • Throat thickness

    Correct Answer
    A. Throat thickness
    Explanation
    The strength of a fillet weld is determined by the throat thickness. The throat thickness is the minimum distance from the root of the weld to the face of the weld, and it represents the effective area of the weld that resists the applied load. A larger throat thickness means a greater amount of material is available to resist the load, resulting in a stronger weld. Leg length, weld profile, and weld width are important factors in determining the quality and appearance of the weld, but they do not directly affect its strength.

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  • 9. 

    The European Standard for NDE of fusion welds by visual examination is:

    • EN 288

    • EN 499

    • EN 287

    • EN 970

    Correct Answer
    A. EN 970
    Explanation
    The correct answer is EN 970. EN 970 is the European Standard for Non-Destructive Examination (NDE) of fusion welds by visual examination. This standard provides guidelines and requirements for visually inspecting fusion welds to ensure their quality and integrity. It covers various aspects such as surface conditions, dimensions, and discontinuities that may affect the performance of the weld. Compliance with EN 970 ensures that visual examination of fusion welds is carried out consistently and effectively according to European standards.

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  • 10. 

    Visual inspection of a fabricated item for a high integrity application should cover inspection activities:

    • Before, during and after welding

    • Before welding only

    • After welding only

    • During and after welding only

    Correct Answer
    A. Before, during and after welding
    Explanation
    For a fabricated item that will be used in a high integrity application, it is crucial to conduct visual inspections at various stages. Inspecting before welding ensures that the materials and components are suitable for welding and that there are no defects or inconsistencies. During welding, inspections help to monitor the process and ensure that the welds are being executed correctly. Finally, inspecting after welding allows for the identification of any defects or issues that may have occurred during the welding process. By conducting inspections before, during, and after welding, the quality and integrity of the fabricated item can be assured.

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  • 11. 

    Incomplete root penetration in a single V butt joint may be caused by:

    • Excessive root face

    • Excessive root gap

    • The current settings being too low

    • Both a and c

    Correct Answer
    A. Both a and c
    Explanation
    Incomplete root penetration in a single V butt joint can be caused by both an excessive root face and the current settings being too low. An excessive root face refers to the distance between the root of the joint and the surface of the base metal, which can prevent proper fusion. Similarly, if the current settings are too low, there may not be enough heat generated to achieve complete penetration. Therefore, both factors can contribute to incomplete root penetration in a single V butt joint.

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  • 12. 

    Incomplete root fusion in a single V butt weld may be caused by:

    • Linear misalignment

    • Root gap being too large

    • Root faces being too small

    • Welding current too high

    Correct Answer
    A. Linear misalignment
    Explanation
    Incomplete root fusion in a single V butt weld may be caused by linear misalignment. This means that the two pieces of metal being welded are not properly aligned in a straight line, causing a gap between the root faces. This misalignment prevents proper fusion of the metal, resulting in an incomplete weld. The other options, such as a too large root gap, too small root faces, or a welding current that is too high, may also contribute to welding issues, but in this case, linear misalignment is the most likely cause.

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  • 13. 

    When visually inspecting the face of a finished weld which of the following flaws would be considered to be the most serious?

    • Excess weld metal height

    • Start porosity

    • Spatter

    • Arc strikes

    Correct Answer
    A. Arc strikes
    Explanation
    Arc strikes are considered to be the most serious flaw when visually inspecting the face of a finished weld. Arc strikes occur when the welding electrode comes into contact with the base metal or previously deposited weld metal, causing localized overheating and potential damage to the base metal. This can result in weakened structural integrity and increased risk of failure in the welded joint. Therefore, arc strikes are a significant concern and should be avoided during the welding process.

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  • 14. 

    A burn-through may occur if the:

    • Current is too low

    • Root face is too large

    • Root gap is too large

    • Arc voltage is too high

    Correct Answer
    A. Root gap is too large
    Explanation
    A burn-through may occur if the root gap is too large. When the root gap is too large, there is insufficient material to fill the gap during the welding process. As a result, the heat generated by the arc is concentrated on a smaller area, leading to excessive heat input and potential burn-through of the material being welded. It is important to maintain an appropriate root gap size to ensure proper weld penetration and avoid burn-through.

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  • 15. 

    A code of practice is a:

    • Standard of workmanship quality only

    • Set of rules for manufacturing a specific product

    • Specification for the finished product

    • Code for the qualification of welding procedures and welders qualifications

    Correct Answer
    A. Set of rules for manufacturing a specific product
    Explanation
    A code of practice is a set of rules that provide guidelines and standards for manufacturing a specific product. These rules outline the procedures, techniques, and specifications that need to be followed during the manufacturing process to ensure consistency, quality, and safety. Codes of practice are commonly used in various industries to maintain uniformity and ensure that products meet the required standards and specifications.

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  • 16. 

    A solid inclusion in a weld may be:

    • Entrapped slag

    • Entrapped gas

    • Lack of inter-run fusion

    • None of the above.

    Correct Answer
    A. Entrapped slag
    Explanation
    A solid inclusion in a weld refers to any foreign material that becomes trapped within the weld during the welding process. This can include substances like slag, which is the byproduct of the welding process. Slag can form when impurities in the base metal or electrode react with the heat of the weld. When the slag becomes trapped within the weld, it can weaken the overall integrity of the weld joint. Therefore, the presence of entrapped slag is a possible explanation for a solid inclusion in a weld.

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  • 17. 

    Which of the following is a planar imperfection?

    • Lack of sidewall fusion

    • Slag inclusion

    • Linear porosity

    • Root concavity

    Correct Answer
    A. Lack of sidewall fusion
    Explanation
    Lack of sidewall fusion refers to a welding defect where the fusion between the weld metal and the base metal on the sidewall is incomplete. This can result in a weak joint and reduced structural integrity. It is considered a planar imperfection because it occurs along the plane of the sidewall and can be visually observed as a lack of fusion between the metal surfaces.

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  • 18. 

    For fillet welds it is normal practice in the UK and USA to measure:

    • Throat thickness

    • Leg lengths

    • Penetration depths

    • Both a and c

    Correct Answer
    A. Leg lengths
    Explanation
    Although in many codes it is normal practice to measure Throat thickness, in the CSWIP examinations the correct answer in the syllabus is to measure Leg lengths.

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  • 19. 

    In a bend test, when the face of the specimen is in tension and the root is in compression, the test is called a

    • Root bend

    • Side bend

    • Face bend

    • Longitudinal bend

    Correct Answer
    A. Face bend
    Explanation
    In a bend test, the specimen is subjected to tension on one side (face) and compression on the other side (root). Therefore, the test is called a face bend.

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  • 20. 

    Heavy porosity on the surface of some MMA welds made on a construction site is most likely to be caused by:

    • Use of the wrong class of electrodes

    • Use of excessive current

    • Moisture pick-up in the electrode covering

    • A bad batch of electrodes

    Correct Answer
    A. Moisture pick-up in the electrode covering
    Explanation
    Heavy porosity on the surface of some MMA welds made on a construction site is most likely to be caused by moisture pick-up in the electrode covering. When electrodes absorb moisture, it creates steam during the welding process, which leads to the formation of porosity in the weld. This can result in weak and defective welds. Therefore, moisture pick-up in the electrode covering is the most probable cause of heavy porosity in MMA welds.

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  • 21. 

    Slag inclusions may be present in

    • Manual metal arc welds

    • Metal inert gas welds

    • Metal active gas welds

    • All welds

    Correct Answer
    A. Manual metal arc welds
    Explanation
    Slag inclusions are a common defect in welds and can occur in various welding processes. However, manual metal arc welding, also known as stick welding, is more prone to slag inclusions compared to other welding methods. This is because stick welding involves the use of a flux-coated electrode, which produces a slag layer that needs to be removed after each weld pass. If the slag is not properly removed, it can become trapped in the weld and result in slag inclusions. Therefore, slag inclusions may be present in manual metal arc welds.

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  • 22. 

    The main cause of undercut is

    • Excessive amps.

    • Excessive OCV

    • Excessive travel speed

    • Current too low

    Correct Answer
    A. Excessive amps.
    Explanation
    Excessive amps refers to using a welding machine with a higher amperage setting than required for the specific welding job. This can lead to the formation of an undercut, which is a groove-like depression along the edge of the weld. The excessive heat generated by the high amperage causes the metal to melt and flow away from the weld, resulting in an insufficient fusion between the base metal and the weld metal. As a result, the undercut weakens the weld joint and reduces its overall strength.

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  • 23. 

    Which group of welders is most likely to require continuous monitoring by a welding inspector?

    • Concrete shuttering welders

    • Overland pipeline welders

    • Tack welders

    • Maintenance welders

    Correct Answer
    A. Overland pipeline welders
    Explanation
    Overland pipeline welders are most likely to require continuous monitoring by a welding inspector because they are involved in welding pipelines that transport hazardous materials over long distances. The welding of these pipelines is critical to ensure their integrity and prevent leaks or failures that could have serious environmental and safety consequences. Continuous monitoring by a welding inspector helps to ensure that the welding is done properly and meets the necessary standards and regulations.

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  • 24. 

    Which of the following fillet welds is the strongest assuming they are all made of the same material and welded using the same WPS?

    • 8mm throat of a mitre fillet

    • 7mm leg + 2mm excess weld metal

    • Mitre fillet with 10mm leg

    • Concave fillet with 11mm leg.

    Correct Answer
    A. 8mm throat of a mitre fillet
    Explanation
    The 8mm throat of a mitre fillet is the strongest because the throat size refers to the effective size of the weld, which is the critical factor in determining its strength. The leg size or excess weld metal does not contribute significantly to the strength of the weld. Therefore, the fillet weld with the smallest throat size, in this case, 8mm, would be the strongest.

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  • 25. 

    A typical included angle for MMA welding a full penetration pipe butt joint is:

    • 35º

    • 70º

    • 90º

    • Dependent on the pipe diameter

    Correct Answer
    A. 70º
    Explanation
    The typical included angle for MMA welding a full penetration pipe butt joint is 70º. This angle is commonly used in this type of welding process to ensure proper penetration and fusion between the two pipe ends. It allows for sufficient access to the joint while maintaining a suitable angle for effective welding.

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  • 26. 

    A fillet weld has an actual throat thickness of 8mm and a leg length of 7mm, what is the excess weld metal?

    • 2.1mm

    • 1.8mm

    • 3.1mm

    • 1.4mm

    Correct Answer
    A. 3.1mm
    Explanation
    Leg Length x 0.7 = Throat Thickness
    Throat Thickness x 1.4 = Leg Length

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  • 27. 

    The fusion boundary of a fillet weld is the:

    • Boundary between the weld metal and HAZ

    • Boundary between individual weld runs

    • Depth of root penetration

    • Boundary between HAZ and parent material.

    Correct Answer
    A. Boundary between the weld metal and HAZ
    Explanation
    The fusion boundary of a fillet weld refers to the boundary between the weld metal and the Heat Affected Zone (HAZ). This is the area where the base metal has been heated to a high temperature during the welding process, causing changes in its microstructure. The fusion boundary is important because it indicates the extent to which the weld metal and the base metal have been effectively joined together. It is crucial for ensuring the strength and integrity of the weld joint.

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  • 28. 

    If a welding inspector detects a type of imperfection not allowed by the application Standard he must:

    • Request further NDE

    • Reject the weld

    • Prepare a concession request

    • Reject the weld only is he considers it to be harmful.

    Correct Answer
    A. Reject the weld
    Explanation
    If a welding inspector detects a type of imperfection not allowed by the application Standard, he must reject the weld. This means that the weld does not meet the required standards and is deemed unacceptable. The inspector has the responsibility to ensure that the welding meets the necessary criteria and if it fails to do so, it must be rejected. The other options such as requesting further NDE or preparing a concession request may be applicable in different scenarios, but in this case, the correct action is to reject the weld.

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  • 29. 

    BS EN 970 allows the use of a magnifying glass for visual inspection but recommends that the magnification is:

    • X2

    • X2 to x5

    • X5 to x10

    • Not greater than x20

    Correct Answer
    A. X2 to x5
    Explanation
    BS EN 970 allows the use of a magnifying glass for visual inspection and recommends a magnification range of x2 to x5. This means that the magnification should not be less than x2 or greater than x5. This range ensures that the inspector can adequately observe and assess the details of the inspected object without excessive magnification that may distort the image or make it difficult to interpret.

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  • 30. 

    The majority of welder qualification tests are carried out using unbacked joints because:

    • It is quicker and cheaper if back-gouging is not required.

    • If the welding process is not TIG. back purging is not required.

    • All welder qualification tests are done on a small diameter pipe.

    • It requires more skill and increases the welders' qualification range.

    Correct Answer
    A. It requires more skill and increases the welders' qualification range.
    Explanation
    The correct answer is "It requires more skill and increases the welders' qualification range." This is because unbacked joints require the welder to have more skill in order to achieve a proper weld. It also increases the welder's qualification range as they are able to demonstrate their ability to weld without the support of a backing material. The other options mentioned in the question are not valid reasons for why welder qualification tests are carried out using unbacked joints.

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Quiz Review Timeline (Updated): Mar 22, 2023 +

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 21, 2014
    Quiz Created by
    Franciscojay16

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