CSWIP Question 4

40 Questions | Total Attempts: 3095

SettingsSettingsSettings
CSWIP Question 4

Multi choice question


Questions and Answers
  • 1. 
    1. The likelihood of a brittle fracture in steels will increase with:
    • A. 

      The formation of a fine grain structure

    • B. 

      A reduction in-service temperature to sub zero-conditions

    • C. 

      A slow cooling rate

    • D. 

      All if the above

  • 2. 
    1. Hydrogen cracking in HAZ is most likely to occur when welding:
    • A. 

      Carbon manganese steels

    • B. 

      Austenitic stainless steel

    • C. 

      Micro alloyed steel (HSLA)

    • D. 

      Low carbon steel

  • 3. 
    1. Which of the following are considerations for selection of a preheat temperature:
    • A. 

      Carbon equivalent, joint design, welding process type and plate material quality

    • B. 

      All joint over 25mm thick, hydrogen levels, welding process, carbon equivalent

    • C. 

      Arc energy, material thickness, hydrogen scale and carbon equivalent

    • D. 

      All of the above are considerations for the selection of a preheat temperature

  • 4. 
    1. Which of the following destructive test would indicate the toughness value of the weld metal/parent metal and HAZ?
    • A. 

      Macro

    • B. 

      Nick break

    • C. 

      Tensile

    • D. 

      Charpy Vee notch

  • 5. 
    1. What constituent is needed in the coating of an electrode to prevent the formation of porosity when welding rimming steel?
    • A. 

      Iron powder

    • B. 

      Potassium silicate

    • C. 

      Silicon

    • D. 

      Calcium carbonate

  • 6. 
    1. Welds made with high heat inputs show a reduction in one of the following properties?
    • A. 

      Elongation

    • B. 

      Toughness

    • C. 

      Ductility

    • D. 

      Penetration

  • 7. 
    1. Which of the following steel type would give rise to the formation of porosity when autogenously welded with an arc welding process?
    • A. 

      A) Fully killed steel

    • B. 

      B) Semi killed steel

    • C. 

      C) Rimming steel

    • D. 

      D) Balanced steel

  • 8. 
    1. Which of the following elements, which may be added to steel, has the greatest affect on creep strength?
    • A. 

      Tungsten

    • B. 

      Manganese

    • C. 

      Carbon

    • D. 

      Molybdenum

  • 9. 
    1. The HAZ associated with a fusion strength
    • A. 

      A) Can not be avoid

    • B. 

      B) Usually has the highest tensile strength

    • C. 

      C) Is usually martensitic

    • D. 

      D) Bothe a and b

    • E. 

      E) All of above

  • 10. 
    1. What for criteria are necessary to produce hydrogen induced cold cracking?
    • A. 

      Hydrogen, moisture, martensitic grain structure and heat

    • B. 

      Hydrogen, poor weld profiles, temperatures above 200° C and a slow cooling rate

    • C. 

      Hydrogen, a grain structure susceptible to cracking, stress and a temperature below 200°C

    • D. 

      Hydrogen, existing weld defects, stress and grain structure susceptible to cracking

  • 11. 
    1. A carbon equivalent (EC) OF 0.5%:
    • A. 

      Is high for carbon manganese steel and may require a preheat over 100°C

    • B. 

      Is generally significant for carbon for manganese steels and is certainly not to be taken into consideration for preheat temperature

    • C. 

      Is high for carbon manganese steels and my required a preheat temperature over 300°C as to avoid cracking

    • D. 

      Is calculated from the heat input formula.

  • 12. 
    1. In the martensitic grain structure what would you expect to increase?
    • A. 

      Ductility

    • B. 

      Hardness

    • C. 

      Toughness

    • D. 

      All of the above

  • 13. 
    1. In which of the following mechanical test would you expect to use a comparison for ductile to brittle transition curve.
    • A. 

      Tensile test

    • B. 

      Charpy test

    • C. 

      Fusion zone test

    • D. 

      All of the above

  • 14. 
    1. Which of the following heat treatment on steel cools down in air from the austenite region?
    • A. 

      Normalizing

    • B. 

      Annealing

    • C. 

      Tempering

    • D. 

      Stress relieving

  • 15. 
    1. What is purpose of microscopic examination of a weld?
    • A. 

      A) To determine the number and type of defects present

    • B. 

      B) To determine the grain size

    • C. 

      C) To determine the strength of the weld

    • D. 

      D) Both a and b

    • E. 

      E) All of the above

  • 16. 
    1. Which of the following units is tensile specimen usually measured in?
    • A. 

      A) Pounds per square inch

    • B. 

      B) Newton per square inches

    • C. 

      C) Joules

    • D. 

      D) Both a and b

  • 17. 
    1. Assuming that the welding process, material thickness equivalent and the welding parameters to be the same which of the following joint types would normally require the highest preheat temperature?
    • A. 

      Edge joint

    • B. 

      Lap joint

    • C. 

      Butt joint (single-V)

    • D. 

      Tee joint (fillet welded)

  • 18. 
    1. Austenitic stainless steels are more susceptible to distortion when compared to ferritic steels this is because:
    • A. 

      High coefficient, low thermal conductivity

    • B. 

      High coefficient, High thermal conductivity

    • C. 

      Low coefficient, High thermal conductivity

    • D. 

      Low coefficient, low thermal conductivity

  • 19. 
    1. Which of the following will most likely require the preheat temperature to be increased?
    • A. 

      An increase in travel speed

    • B. 

      A reduction in material thickness

    • C. 

      An increase in electrode diameter

    • D. 

      None of above

  • 20. 
    1. Which of the following properties my be applicable to a carbon steel weld (CE 048) welded without preheat?
    • A. 

      Narrow heat effected zone and hardness value in excess of 400HV

    • B. 

      Broad heat effected zone and hardness value in excess of 400HV

    • C. 

      A very tough and narrow heat affected zone

    • D. 

      Narrow heat effected zone and low hardness values

  • 21. 
    1. Which of the following materials is considered to be easiest to weld?
    • A. 

      Mild steel

    • B. 

      Medium stainless steel

    • C. 

      Martensitic stainless steel

    • D. 

      Forging steel

  • 22. 
    1. Which of the following test pieces taken from a charpy test on a carbon-manganese steel Weld, welded with a high heat input is most likely to have lowest toughness?
    • A. 

      Test piece taken from HAZ

    • B. 

      Test piece taken from parent metal

    • C. 

      Test piece taken from weld metal

  • 23. 
    1. Which of the following butt weld preparations would normally be considered for a mechanical welding process?
    • A. 

      Single-V butt weld, root gap 2.5 mm (welded from on side only)

    • B. 

      Double-V butt weld both sides, root gap 2.0 mm

    • C. 

      Single –U butt with backing

    • D. 

      None of the above can be used for mechanical welding

  • 24. 
    1. Which is correct heat input for the following parameters. Amps 350, volts 32 and the travel speed 310 mm/minute (MMA welding process)
    • A. 

      2.16 KJ/mm

    • B. 

      0.036 KJ/mm

    • C. 

      216 KJ/mm

    • D. 

      3.6 KJ/mm

  • 25. 
    1. Assuming that the applicable specification makes no mention of arc strikes what would you expect to do as a welding inspector if arc strikes were found on a component made of a high tensile strength material?
    • A. 

      Have the welder re-qualified

    • B. 

      Ignore them

    • C. 

      Have area checked for possible cracking

    • D. 

      Cut out the entire weld where the arc strikes exist

Back to Top Back to top