CSWIP 3.1 Multiple Choice Questions -practice Paper 4

30 Questions | Total Attempts: 7790

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CSWIP Quizzes & Trivia

Questions and Answers
  • 1. 
    Which of these drawing symbols shows weld penetration depth in accordance with BS EN 22553?
    • A. 
    • B. 
    • C. 
    • D. 
  • 2. 
    BS EN 288 and BS EN ISO 15614 are specifications for?
    • A. 

      Welder approval testing

    • B. 

      Welding equipment calibration

    • C. 

      Welding procedure approval

    • D. 

      Consumables for submerged arc welding

  • 3. 
    What determines the penetrating power of gammer rays?
    • A. 

      Time

    • B. 

      Type of isotope

    • C. 

      Source-to-film-distance

    • D. 

      Source strength

  • 4. 
    Which element has the greatest effect on the HAZ hardness of C-Mn steel?
    • A. 

      Molybdenum

    • B. 

      Chromium

    • C. 

      Titanium

    • D. 

      Carbon

  • 5. 
    Preheating a steel plate with a carbon equivalent (CEV) of 0.48 may be required to:
    • A. 

      Drive moisture from the plate

    • B. 

      Prevent excessive hardening in the HAZ

    • C. 

      Prevent the formation of carbides

    • D. 

      Improve the mechanical properties of the weld metal

  • 6. 
    A welder approval certificate should be withdrawn if:
    • A. 

      He has not done any welding for 4 months

    • B. 

      He has been absent from work for 7 months

    • C. 

      The repair rate for his work exceeds 1%

    • D. 

      His work has been examined by UT only

  • 7. 
    In friction welding, the metal at the interface when the joining occurs is describes as being in the:
    • A. 

      Liquid state

    • B. 

      Intercritical state

    • C. 

      Plastic state

    • D. 

      Elastic state

  • 8. 
    A penertrameter (IQI) is used to measure the:
    • A. 

      Size of discontinuity in a weld joint

    • B. 

      Density of a radiographic film

    • C. 

      Degree of film contrast

    • D. 

      Quality of the radiographic technique

  • 9. 
    Which of the following cutting methods is suitable for cutting stainless steel?
    • A. 

      Plasma

    • B. 

      Oxy-acetylene

    • C. 

      Oxy-propane

    • D. 

      It depends upon the thickness.

  • 10. 
    Which of the following would be classed as the most serious type of defect?
    • A. 

      A buried linear slag inclusion

    • B. 

      Buried lack of inter-run fusion

    • C. 

      Surface breaking lack of sidewall fusion

    • D. 

      Surface porosity

  • 11. 
    Ultrasonic testing has an advantage over other NDT methods for the detection of:
    • A. 

      Lack of sidewall fusion

    • B. 

      Root undercut

    • C. 

      Incompletely filled groove

    • D. 

      Root concavity

  • 12. 
    Exceeding the maximum interpass temperature specified for a C-Mn steel weld joint may give:
    • A. 

      Excessive porosity

    • B. 

      Burn through

    • C. 

      Lower toughness

    • D. 

      Higher strength

  • 13. 
    MIG/MAG welding has a tendency to give lack of sidewall fusion when:
    • A. 

      Spray transfer conditions are used

    • B. 

      100% CO2 shielding gas is used

    • C. 

      Pulsed current is used

    • D. 

      Dip transfer

  • 14. 
    The temperature range over which a steel goes from having high to low toughness is called the:
    • A. 

      Critical transformation temperature

    • B. 

      Ductility dip temperature

    • C. 

      Bi-modal temperature

    • D. 

      Transition temperature

  • 15. 
    For SAW, what is the effect of raising arc voltage but keeping all other parameters the same?
    • A. 

      Weld bead width will increase

    • B. 

      Depth of penetration will increase

    • C. 

      Weld bead width will decrease

    • D. 

      Depth of penetration will decrease

  • 16. 
    Changing an essential variable beyond the allowed limits for a qualified welding procedure:
    • A. 

      May change the mechanical properties of the joint

    • B. 

      May adversely affect the quality of the weld

    • C. 

      Will require a new welding procedure to be approved

    • D. 

      All of the above

  • 17. 
    With reference to the various grades of stainless steels which of the following statements is true?
    • A. 

      They are all non-magnetic

    • B. 

      They all require 100% Ar for GMAW

    • C. 

      They all have very high thermal conductivity

    • D. 

      Only certain grades can be used for service at very low temperatures

  • 18. 
    Which of the following AWS A5.1 electrodes has a rutile covering:
    • A. 

      E 6010

    • B. 

      E 7016

    • C. 

      E 7018

    • D. 

      E 6013

  • 19. 
    Welds made with very high heat input will show a reduction in:
    • A. 

      Tensile ductility

    • B. 

      Notch toughness

    • C. 

      Fatigue strength

    • D. 

      Creep resistance

  • 20. 
    During PWHT of a complex fabrication, it is heated to the soak temperature at a much faster rate than specified by the procedure. This may:
    • A. 

      Cause excessive oxidation

    • B. 

      Not allow sufficient time to relieve stresses

    • C. 

      Introduce excessive compressive stresses

    • D. 

      Cause distortion

  • 21. 
    When MAG welding in dip transfer (a short-circuiting mode) spatter can be reduced by:
    • A. 

      Using inductance

    • B. 

      Using 100%CO2

    • C. 

      Using Ar +30% He

    • D. 

      Increasing the stick-out length

  • 22. 
    Repair welding of in-service plant and equipment may be more difficult than making repairs during initial fabrication because:
    • A. 

      The material may be contaminated

    • B. 

      Access to repair area may be difficult

    • C. 

      Positional welding may be needed

    • D. 

      All of the above

  • 23. 
    For gammer radiography of a steel weld at 35mm thickness, the recommended isotope is:
    • A. 

      Thulium 170

    • B. 

      Ytterbium 169

    • C. 

      Iridium 192

    • D. 

      Cobalt 60

  • 24. 
    The sensitivity of a radiograph is assessed:
    • A. 

      By using a densitometer

    • B. 

      By using an image quality indicator (IQI)

    • C. 

      From the KVA used

    • D. 

      From the source/tube to work standoff distance used

  • 25. 
    A transverse tensile test from a Weld Procedure Approval Record (WPAR) test plate is used to measure:
    • A. 

      Tensile strength of the weld

    • B. 

      Tensile strength of the joint

    • C. 

      Stress/strain characteristics of the weld

    • D. 

      Stress/strain characteristics of the joint

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