CSWIP 3.1 Multiple Choice Paper 5

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  1. How could arc blow be avoided?
    A) Use A.C.
    B) Use D.C.+
    C) Use D.C.-
    D) Increase travel speed

  2. During a transverse tensile test, the first stage the specimen goes through is known as:
    A) Plastic stage
    B) Elastic stage
    C) Deformed stage
    D) UTS stage

  3. Which of the following joint designs is preferred in cyclic loading condition?
    A) View A
    B) View B
    C) View C
    D) View D
    image

  4. The WPS calls for a root gap to be between 2 and 3mm, the actual measured gap is 4mm, what course of action would you take?
    A) Accept it as its only 1mm.
    B) Reject it.
    C) The welder will decide, if it fails it will be his problem.
    D) The welder insists he can weld the butt joint easily so let him go ahead.

  5. Which Tungsten electrode is usually used to weld Aluminum?
    A) Zirconiated
    B) Thoriated
    C) Large diameter
    D) Pointed electrodes

  6. A procedure is a document which:
    A) Specifies the way to carry out an activity or a process
    B) Provides binding legislative rules that are adopted by an authority
    C) Specifies which resources shall be applied by whom and when, to a specific project, product, process or contract
    D) A written and verbal description of the precise steps to be followed

  7. Which one of these statements is true concerning solidification cracking?
    A) Only occurs in MMA welding
    B) Increased depth to width ratio will increase stress
    C) Never occurs in MIG/MAG welding
    D) All of the above

  8. Which one of these tests would most probably be used for welder qualification on a plate butt weld using 13mm low carbon steel
    A) CTOD
    B) Nick break test
    C) Fracture fillet test
    D) IZOD

  9. An arc strike on a high carbon steel plate is likely to have the following microstructure beneath its surface
    A) Austenite
    B) Martensite
    C) Ferrite
    D) Pearlite

  10. If the torch was trailing when using the MIG/MAG process, which of the following appearances of the weld is most likely to be observed during visual inspection?
    A) No undercut and shallow penetration
    B) Severe undercut and deep penetration
    C) Moderate undercut and penetration
    D) Minimum undercut and excess weld metal

  11. The welders have increased the electrode stickout length of the SAW set, what would be the effect on the weld?
    A) No effect.
    B) The weld width would be narrower.
    C) Penetration will be increased.
    D) The deposition rate would be greater if wire feed rate is increased also.

  12. Who should have access to the WPQRs?
    A) NDT operators.
    B) Inspectors only.
    C) Welders only.
    D) Welding engineer.

  13. Half life is a term used to describe
    A) The penetrating ability a gamma source
    B) Half the total time a gamma source will be useful
    C) The time taken for the gamma source to reduce its strength to a half
    D) The rate of decay of an X-ray tube

  14. A typical minimum OCV requirements for MMA (111) using basic electrodes would be:
    A) 70 Volts
    B) 40 Volts
    C) 100 Volts
    D) 20 Volts

  15. Why is the OCV voltage capped at certain level?
    A) Save electricity
    B) Reduce the risk of fatality
    C) Prevent exploding of the consumable
    D) Allow smooth transition into welding voltage range

  16. Austenitic stainless steels are not susceptible to HIC because:
    A) They are non-magnetic
    B) They are stainless and contain chromium
    C) They don’t harden during heating and cooling
    D) They are highly ductile

  17. Which type of weld would you associate with the joint below?
    image
    A) A plug weld in a T joint
    B) A spot weld is an edge joint
    C) A fillet weld in a corner joint
    D) An edge weld in a lap joint

  18. In a martensitic grain structure which of the following mechanical properties would be more likely to increase?
    A) Ductility
    B) Hardness
    C) Softness
    D) Toughness

  19. Who should select the specific welds for NDT, to cover the 10% contractual percentage required by the specification Code?
    A) Anyone can select the welds as its just a random choice
    B) The welder as he known which welds are likely to produce the least defects
    C) This will be referenced in the inspection and test plan
    D) Nobody, as welding is always carried out to a high standard the use of percentage NDT is of no real value

  20. To assess the surface of a weld for direct inspection, the distance from the surface to the eye should be a maximum of?
    A) 200mm
    B) 600mm
    C) 60mm
    D) 6000mm

  21. Which of the following defects are unlikely to be detected by normal radiographic techniques?
    A) Intergranular corrosion cracking
    B) Porosity
    C) Slag
    D) Lack of penetration

  22. To prevent hydrogen cracking which of the following would require the lowest preheat if all other factors were the same as per ISO BS EN 1011?
    A) MMA welding with cellulosic coated electrode
    B) MMA welding with rutile coated electrode
    C) MMA welding with heavy rutile coated electrode
    D) MMA welding with solid

  23. Which BS EN standard is used for welding symbols on drawings?
    A) BS EN 970.
    B) BS EN 287.
    C) BS EN 22553.
    D) BS EN 4515.

  24. The higher the alloy content of steels:
    A) The lower the tendency for HIC to occur
    B) The higher the tendency for HIC to occur
    C) High alloy steels do not influence HIC susceptibility
    D) None of the above

  25. In an all weld tensile test, the original specimen gauge length was 50mm, and after the test the increased gauge length was 65mm, what is the elongation percentage?
    A) % A is 40
    B) % A is 60
    C) % A is 30
    D) % A is 36

  26. A large grain structure in C-Mn steels is said to produce:
    A) Low ductility values
    B) Low fracture toughness values
    C) High fracture toughness values
    D) High tensile strength

  27. The likelihood of brittle fracture in steels will increase with:
    A) A large grain formation
    B) A reduction of in service temperature to sub zero levels
    C) Ferritic rather than austenitic steels
    D) All of the above

  28. An austenitic stainless steel may suffer:
    A) Weld decay
    B) Sensitization
    C) Solidification cracking
    D) All of the above

  29. Carbon equivalent values are useful to determine:
    A) Weld ability aspects
    B) Crack sensitivity aspects
    C) Typical mechanical properties
    D) All of the above

  30. Repair welding is often more difficult than new fabrication due to:
    A) The material being ingrained with in-service contaminates
    B) Restricted access with the repair area
    C) The possible position of the weld
    D) All of the above

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4 Likes

Why is an argon, not helium?

1 Like

Please check question No.2, 3, 6,9,10,11,29

2 Likes

Addition questions, please check.

Answer should be B? The longer the extension, the greater the
amount of heating and the higher the melting rate but decreases penetration
and weld bead width.

Maybe D is more suitable

You quote conflict to the answer,.
Answer B: the weld width would be narrower, not larger.

Correct answer should be D.