CSWIP 3.1 QUESTIONS - MODEL

SPECIMEN WRITTEN EXAMINATION QUESTIONS

CSWIP 3.1 

1.1              Part A and Part A2

Candidates are required to tick, or otherwise indicate, the corrective answer in the section provided. There is only one correct answer for each question.

1                    Applying preheat when welding carbon manganese steel is normally done to avoid:

a)                  Slag inclusions

b)                  Hydrogen cracking

c)                  Lack of sidewall fusion

d)                 Porosity

2          Which of following mechanical properties of a weld in carbon manganese steel is most affected if the heat input per unit length of weld is excessively high?         

a)                  Elongation

b)                  Tensile strength

c)                  Hardness

d)                 Toughness

3          You observe centerline cracking a weld that as been made one of five work stations each making similar components. The first action to take is:

a)      Impound all welding consumables

b)      Report the occurrence to high authority

c)      Stop all welding

d)     Call for full NDT checks

4          Which of the following defects is unlikely to be found by visual inspection?          

a)                  Linear misalignment

b)                  Undercut

c)                  Overlap

d)                 Linear slag inclusion

5          Which of the following welding processes uses a resistive heating system to achieve weld metal deposition?

a)                  Manual metal arc welding

b)                  Submerged-arc welding

c)                  Electro slag welding

d)                 Resistance spot welding

6          Which of the following units could Charpy V notch energy is measured in?

a)                  Pounds per square inch

b)                  Joules

c)                  Newtons per square millimeter

d)                 None of the above

7          The usual method of assessing the sensitivity of radiograph is by means of a:

a)                  Dosimeter

b)                  Fluoroscope

c)                  IQI ( Penetrameter)

d)                 Clinometer

8          Under normal contract conditions, weld procedure approval tests for pipe work are:

a)                  Mandatory

b)                  Depend upon site and weather conditions

c)                  Dependent upon the contractor’s confidence in his procedures

d)                 Only required when CO2 welding is to be used.

9          Which of the following destructive tests is not normally required for welder approval test for mild steel?

a)                  Bend test

b)                  Macro examination

c)                  Impact tests

d)                 Fracture tests

10        Hydrogen controlled electrodes were developed principally for:

a)                  The prevention of porosity

b)                  The prevention of cracking

c)                  The enhancement of arc voltage

d)                 Their ease of arc starting

11        For which of the following is pre-heating most likely to be required?

a)                  Austenitic stainless steels

b)                  High strength alloy steels

c)                  Low and medium strength steels

d)                 Low carbon steels

12        Manual metal arc welding of low alloy steels is more likely to be performed with:

a)                  Rutile electrodes

b)                  Cellulosic Electrodes

c)                  Iron powder electrodes

d)                 Basic hydrogen controlled electrodes

13        which of the following defects is more common to weld deposited by the

CO-2  welding process than weld deposited by manual metal arc?

           

a)                  Slag inclusion

b)                  Excess penetration

c)                  Lack of side fusion

d)                 Tungsten inclusions

14        Which defect would you expect to obtain in TIG welds in non-deoxidized steel?

a)                  Under cut

b)                  Porosity

c)                  Tungsten inclusions

d)                 Linear misalignment

15        Which of the following can arise from copper inclusions is a ferrite steel weld?

           

a)                  Weld metal cracks

b)                  HAZ cracks

c)                  Lamellar tearing

d)                 Porosity

16        Which of the following is likely to give the highest impact strength in ferritic weld metal?

a)                  Cellulosic electrodes

b)                  Submerged arc with acid flux

c)                  Spray transfer Co-2-welding

d)                 Basic coated normal metal arc electrodes

17        Which of the following methods of NDT would be most likely to detect lack of side fusion in ferritic steel welds?

           

a)                  Penetrants

b)                  Magnetic particles

c)                  Radiography

d)                 Ultrasonic flaw detector

18        You suspected that ferritic steel plates, which have been edge, prepared contain crack in the prepared edges. Which NDT method would you use to check this?

a)                  Radiography

b)                  Magnetic particle

c)                  Penetrants

d)                 Ultrasonic flaw detector

19        Which of the following defects do you not expect to find by visual examination of completed welds?           

a)                  Linear slag inclusions

b)                  Under cuts

c)                  Overlap

d)                 Linear misalignment

20        Stress relief is not helpful in one of the following cases. Which one?

a)                  In improving resistance to stress corrosion cracking

b)                  In dimensional stability after machining improving

c)                  In lowering the peak residual stress

d)                 In softening the steel