CSWIP 3.1 Multiple Choice Questions And Answers

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CSWIP 3.1 Multiple Choice Questions And Answers - Quiz

Try taking this 'CSWIP 3. 1 Multiple choice questions and answers' to brush up on your knowledge of the fundamental aspects. CSWIP 3. 1 is a technical exam that certifies Welding inspectors. This exam is taken by aspiring welders to obtain certification for competence in the field of welding. If you're preparing for your certification exams, this awesome quiz is especially for you! We hope that this quiz helps you brush up on your basics and aids in scoring good marks. Study hard and good luck!


Questions and Answers
  • 1. 
    Which type of submerged arc welding flux is susceptible to moisture pick-up?
    • A. 

      Neutral

    • B. 

      Agglomerated

    • C. 

      Fused

    • D. 

      Are all about the same

  • 2. 
    A Large grain size in the HAZ of a C-Mn Steel weld joint may have:
    • A. 

      Low ductility

    • B. 

      Low toughness

    • C. 

      High toughness

    • D. 

      High tensile strength

  • 3. 
    A STRA test is used to measure the:
    • A. 

      Tensile strength of the welded joint

    • B. 

      Level of residual stress in butt joints

    • C. 

      Fracture toughness of the HAZ

    • D. 

      Through-thickness ductility of a steel plate (the Z direction)

  • 4. 
    The risk of hydrogen cracking is greater when MMA welding:
    • A. 

      C-Mn Steels

    • B. 

      Austenitic Stainless Steels

    • C. 

      Low Alloy Steels For Elevated Temperature Service

    • D. 

      Low Carbon Steels For Cryogenical Service

  • 5. 
    The property of a material which has the greatest influence on welding distortion is its
    • A. 

      Yield strength

    • B. 

      Coefficient of thermal expansion

    • C. 

      Elastic modulus

    • D. 

      Coefficient of thermal conductivity

  • 6. 
    Which of the following is a suitable shielding gas for FCAW of stainless steels?
    • A. 

      100% Argon

    • B. 

      70% Argon + 30% He

    • C. 

      Argon + 5% Hydrogen

    • D. 

      Argon + 20% CO2

  • 7. 
    The presence of iron sulphides in a weld bead may cause:
    • A. 

      Solidification cracking

    • B. 

      Hydrogen cracking

    • C. 

      Lamellar tearing

    • D. 

      Weld decay

  • 8. 
    A macrosection is particularly good for showing:
    • A. 

      The weld metal HAZ microstructure

    • B. 

      Overlap

    • C. 

      Joint hardness

    • D. 

      Spatter

  • 9. 
    Which of the following procedures would be expected to produce the least distortion in a 15mm straight butt weld?
    • A. 

      TIG weld, single-sided, multi-pass

    • B. 

      MMA weld, single-sided, multi-pass

    • C. 

      MMA weld, double-sided, multi-pass

    • D. 

      SAW weld, 1 pass per side

  • 10. 
    A suitable gas/gas mixture, for GMAW for aluminium is:
    • A. 

      100% CO2

    • B. 

      100% Argon

    • C. 

      80% Argon + 20% CO2

    • D. 

      98% Argon + 2% 02

  • 11. 
    Which of the following is associated with SAW more often than it is with MMA welds?
    • A. 

      Hydrogen cracking in the HAZ

    • B. 

      Solidification cracking in the weld metal

    • C. 

      Reheat cracking during PWHT

    • D. 

      Lamellar tearing

  • 12. 
    EN ISO 5817 (Level C) specifies that the limit for the diameter (D) of a single pore in a weld is: D<0.3s, but max. 4mm where s=material thickness. For which of the following situations is the pore acceptable?
    • A. 

      S=20mm, measured pore diameter = 5mm

    • B. 

      S=15mm, measured pore diameter = 4.5mm

    • C. 

      S=10mm, measured pore diameter = 3mm

    • D. 

      S=10mm, measured pore diameter = 3.5mm

  • 13. 
    To measure arc voltage accurately it is recommended that the voltmeter should be connected:
    • A. 

      Across the arc and as near as practical to the arc

    • B. 

      Across the power source terminals prior to arc initiation

    • C. 

      Across the power source terminals during the welding operation

    • D. 

      Anywhere in the circuit

  • 14. 
    Lamellar tearing has occurred in a steel fabrication. What technique could have been used to find it before the weld was made?
    • A. 

      X-ray examination

    • B. 

      Liquid penetrant examination

    • C. 

      Ultrasonic examination

    • D. 

      It could not have been found by any inspection method

  • 15. 
    Preheating a low alloy steel prior to welding to minimise the risk of:
    • A. 

      Porosity

    • B. 

      Excessive distortion

    • C. 

      HAZ cracking

    • D. 

      Lack of fusion

  • 16. 
    Typical temperature used for normalising a C-Mn steel plate are:
    • A. 

      600-650ºC

    • B. 

      1000-1100ºC

    • C. 

      700-800ºC

    • D. 

      880-920ºC

  • 17. 
    For GMAW the burn-off rate of the wire is directly related to:
    • A. 

      Stick-out length

    • B. 

      Wire feed speed

    • C. 

      Arc voltage

    • D. 

      Travel speed

  • 18. 
    For MMA welding of a 60mm wall nozzle to a 100mm wall vessel shell, preheat temperatures should be checked:
    • A. 

      Before welding starts/restarts

    • B. 

      On the shell and nozzle

    • C. 

      At points at least 75mm from the joint edge

    • D. 

      All of the above

  • 19. 
    A crack running along the centreline of a weld bead could be caused by:
    • A. 

      Use of damp flux

    • B. 

      Lack of preheat

    • C. 

      Arc voltage too high

    • D. 

      Weld bead too deep and very narrow

  • 20. 
    To improve resistance to service failure caused by cyclic loading, it is good practice to:
    • A. 

      Use low heat input welding

    • B. 

      Use steel with a low CEV

    • C. 

      Ensure there are no features that give high stress concentration

    • D. 

      PWHT the fabrication

  • 21. 
    The use of low carbon austenitic stainless steels and stabiliser stainless steels will minimise the risk of:
    • A. 

      HAZ cracking

    • B. 

      Weld decay

    • C. 

      Weld metal cracking

    • D. 

      Distortion

  • 22. 
    Which type of SAW flux is susceptible to breaking down into fine particles during circulation?
    • A. 

      Fused

    • B. 

      Neutral

    • C. 

      Alloyed

    • D. 

      Agglomerated

  • 23. 
    The maximum hardness in the HAZ of a steel will increase if the:
    • A. 

      Heat input is increased

    • B. 

      CEV is increased

    • C. 

      Joint thickness is decreased

    • D. 

      Basic electrodes are used

  • 24. 
    BS EN ISO 5817 (Level B) specifies the limit for excess weld metal (h) on a butt weld as: h<1mm+0.1b, but max. 5mm, b= weld width. In which of the following situations is the measured excess weld metal acceptable?
    • A. 

      B = 10 measured excess weld metal = 2.5mm

    • B. 

      B = 20 measured excess weld metal = 3.5mm

    • C. 

      B = 35 measured excess weld metal = 4.5mm

    • D. 

      B = 45 measured excess weld metal = 5.5mm

  • 25. 
    A C-Mn steel is being welded by MMA and the electrode run-out lengths that have been used are much shorter than specified by the WPS. This deviation may give:
    • A. 

      Increased risk of hydrogen cracking

    • B. 

      Increased risk of solidification cracking

    • C. 

      Lower values of HAZ toughness

    • D. 

      Higher values of HAZ hardness

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