Multi Choice Question Paper ( MSR - WI - 1 )

THE WELDING INSTITUTE

Welding Inspection, Steels – WIS 5 Multi – Choice Question Paper ( MSR – WI – 1) Name :

H. Muhammad Razali Karnen Answer all questions

1.

Which of the following butt-weld preparations is usually the most susceptible to lack of sidewall fusion during the manual Metal arc process ? a. b. c. d.

2.

What is the leg length of a fil a. b. c. d.

3.

The distance from the toe to face The distance from the root to face center The distance from the root to the toe The distance from toe to toe

Lap joints contain : a. b. c. d.

5.

The distance from the toe to face The distance from the root to face center The distance from the root to the toe The distance from toe to toe

What is the throat thickness of a fillet weld ( equal leg lengths ) a. b. c. d.

4.

A double-U butt A single-V butt A double-V butt It is not normally a defect associated with the MMA welding process

Fillet welds Corner joints Butt-welds Single-bevel butts

A duty not normally undertaken by a welding inspector is to : a. b. c. d.

Check the condition of the parent material Check the condition of the consumables Measure residual stress Check calibration certificates

WIS 5 Qu paper MSR - WI – 1 H. Muhammad Razali Karnen

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THE WELDING INSTITUTE 6.

Under most conditions, which of the following welding positions will deposit the most weld metal. a. b. c. d.

7.

What meant by the term crater pipe : a. b. c. d.

8.

Leg length Throat thickness Weld thickness All of the above

A crater crack may also be termed : a. b. c. d.

11.

The area containing the HAZ and the weld metal The weld metal and parent metal The boundary between the fusion zone and the HAZ The part of the weld, which has undergone metallurgical changes due to the heat from welding

The strength of a fillet weld is primary controlled by : a. b. c. d.

10.

Another term for concave root Another term given for a burn through A type of gas pore, found in the weld crater A shrinkage defect, found in the weld crater

What is meant by the term weld junction ? a. b. c. d.

9.

Vertical down Overhead Horizontal-vertical Flat ( down hand )

Cold crack Tearing Fatigue crack Star crack

Which of the following welding processes / technique is likely to be used for the repair welding of localised porosity in a butt weld ? a. b. c. d. e.

MMA, PG position Mechanised MAG Submerged arc All of the above None of the above

WIS 5 Qu paper MSR - WI – 1 H. Muhammad Razali Karnen

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THE WELDING INSTITUTE 12.

Which of the following welds would be considered in a situation where two plates are to be joined that overlap ( assume no external assess ) a. b. c. d.

13.

A fillet weld A single-bevel butt weld A plug weld A single-U butt weld

In the MMA welding process, which of the following is most likely to be caused by a welder with a poor technique a. b. c. d.

14.

Root concavity is caused by : a. b. c. d.

15.

Excessive back purge pressure and entrapped gas Excessive back purge pressure and very high heat inputs Excessive root grinding and a slow travel speed Excessive root grinding and excessive back purge pressure

When inspecting a critical component, the toes of a weld must be : a. b. c. d.

16.

Deep weld craters / crater cracks Copper inclusions Hydrogen cracks All of the above

Always ground flush Must always overlap at least 1.5 mm onto the parent material Must always be inspected using a crack detection method ( MPI, DPI ) None of the above can be selected – specification requirements unknown

When carrying out visual inspection, the specification makes no mention of the requirements for visual inspection, in this situation what should you do ? a. b. c. d.

17.

Carry out normal visual inspection Seek advice from higher authority Carry out no visual inspection Re-write the requirements of the specification

Under most circumstances, which of the following do you consider to be duties of a welding inspector a. b. c. d.

18.

The supervision of welders Procedure writing Qualifying welders All of the above

Which of the following is most likely to cause a burn through WIS 5 Qu paper MSR - WI – 1 H. Muhammad Razali Karnen

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THE WELDING INSTITUTE a. b. c. d. 19.

Root gap too small Travel speed too fast Root face too small all of the above

In an arc welding process, which of the following is the correct term used for the amount of weld metal deposited per minutes ? a. b. c. d.

20.

Filling rate Deposition rate Weld deposition Weld duty cycle

What is the term given for the area of a welded joint just outside the weld metal that has undergone microstructural changes ? a. b. c. d.

21.

When carrying out visual inspection, which defect (s) is likely to be missed ? a. b. c. d.

22.

Lack of fusion at the toe of a weld Lack of fusion between weld metal and weld metal Undercut at the toe of a weld Both a and b

Incomplete root penetration is most likely due to : a. b. c. d.

24.

Linear misalignment Cap undercut Porosity Lack of fusion ( inter run )

Cold lapping is another term for : a. b. c. d.

23.

Heat affected zone The weld zone Fusion zone All of the above terms may be used

Welding speed too slow Welding current too high Root gap too small Electrode diameter too small

Crater cracks are caused mainly by : a. b. c. d.

Excessively fast welding speeds Improper electrode angle Hot shrinkage Improper joint design WIS 5 Qu paper MSR - WI – 1 H. Muhammad Razali Karnen

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THE WELDING INSTITUTE 25.

On a single-V butt weld, the distance through the center of the weld from root to face is called : a. b. c. d.

26.

The throat thickness of a ¾ inch fillet weld is ? a. b. c. d.

27.

27.5 mm 24 mm 13.5 mm 12.5 mm

The need for pre-heat for steel will increase if : a. b. c. d.

28.

Reinforcement Penetration Throat thickness None of the above

The material thickness reduces Faster welding speeds The use of a larger welding electrode All of the above

Which of the following butt weld preparations is most likely to be considered for welding the welding of welding of a 6 mm thick plate ? a. b. c. d.

29.

A welding inspectors main attributes include : a. b. c. d.

30.

Double-V butt Asymmetrical double-V butt Single-U butt Single-V butt

Knowledge Honesty and integrity Good communicator All of the above

A code of practice for visual inspection should cover : a. b. c. d.

Before, during and after welding Before welding activities only After welding activities only None of the above

WIS 5 Qu paper MSR - WI – 1 H. Muhammad Razali Karnen

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