Preparatory Questions (Set – 7)

1.  Which of the following butt weld preparations is generally most susceptible to lack of side wall fusion during MMA welding?

1. 1. A “U” preparation
   2. A “V” preparation
   3. A Double V preparation
   4. All of the above

2.  Which of the following units is used for charpy V notch energy?

1. 1. Pounds per square inch
   2. Joules
   3. KSi
   4. All of the above

3.  What destructive test would be required to ascertain the likelihood of cracking in the HAZ of a weld?

1. 1. Volumetric test at HAZ area
   2. Side bend test
   3. Tensile test
   4. Macro test

4.  Stress can be measured in:

1. 1. N/mm2
   2. Psi
   3. mm
   4. both a & b

5.  What is the ratio between the leg length and the design throat thickness on a miter fillet weld with equal leg lengths

1. 1. 1 to1
   2. 2 to 1
   3.  1.414 to 1
   4.  All of the above

6.  The primary duty of a welding inspector is:

1. 1.  to ensure the welds are defect free
   2.  to ensure the weld is free from residual stresses
   3. to write job specifications
   4. to ensure all welding and associated activities are carried out in accordance with the procedure and specification

7.  Quality Assurance:

1. 1. Another name for inspection
   2. Relates to all activities and functions concerned with the attainment of quality
   3.  Is the activity of ensuring documents related to specific contracts are in order
   4.  Is the activity of carrying out quality control

8.  Generally speaking, a welding inspector, as a minimum requirement:

1. 1.  Must have a thorough knowledge of NDT
   2. Must know how to interpret radiographs
   3. Must have thorough knowledge of welding metallurgy
   4. None of the above

9.  The toes of the cap of a butt weld

1. 1. Must overlap onto the external surface of a plate or a pipe by at least 1.5mm
   2. Must be ground
   3. Must never be ground
   4. None of the above

10.  A welding inspector:

1. 1. Should be able to weld
   2. Must know how to interpret radiographs
   3. May be required on certain contracts, to interpret radiographs
   4. None of the above

11.  What is the throat thickness of a fillet weld

1. 1. The distance from the toe to the face
   2. The distance from the root to the face center
   3. The distance from the root to the toe
   4. The distance from toe to toe

12.  Stress acting in the opposite direction of compressive stress is known as:

1. 1. Tensile stress
   2. Shear stress
   3. Hoop stress
   4. All of the above

13.  A weld defect is

1. 1. A flaw of any size or type
   2. An indication which can be seen by visual inspection
   3. An imperfection with a dimension above the specified limit
   4. An indication shown by surface or volumetric NDT

14.  The fusion boundary of a weldment is

1. 1. The boundary between weld metal and HAZ
   2. The boundary between different passes
   3. Both 1 and 2
   4. Neither 1 nor 2

15.  Which group of welders is most likely to require continuous monitoring by a welding inspector?

1. 1. Concrete shuttering welders
   2. Overland pipeline welders
   3. Tack welders
   4. Maintenance welders

16.  Which of the following destructive tests would indicate the toughness of weld metal/parent

1. 1. Tensile test
   2. Ultrasonic test
   3. Side bend test
   4. Charpy V notch test

17.  Fillet welds are:

1. 1. Preferable to butt welds due to high strength
   2. Difficult to assess with NDT in comparison with butt (groove) welds
   3. Used only for appearance purposes
   4. All of the above

18.  API stands for:

1. 1. Associated pipeline industries
   2. American pipeline institute
   3. American petroleum institute
   4. American pressure pipe institute

19.  What is the leg length of a fillet weld

1. 1. Between 1 mm to 3 mm
   2. The distance from the root to the face center
   3. The distance from the root to the toe
   4. The distance from the one toe to other

20.  Which of the following alloys is non-magnetic ?

1. 1. 4.0% chromium molybdenum
   2. 12.0% chromium 1.5% molybdenum
   3. Austenitic stainless steel
   4. 9.0% nickel steel

21.  If submerged arc welding is used to make butt welds, which would you be most critical of?

1. 1. The root gap tolerance
   2. The angle of preparation
   3. Both 1 & 2
   4. Neither 1 & 2

22.  Which one of the following statements is correct?

1. 1. Preheating increases dilution
   2. Preheating increases cooling
   3. Both 1 & 2
   4. Neither 1 & 2

23.  Proof stress is used when non-ferrous metals are undergoing tensile tests to determine the equivalent:

1. 1. Elasticity
   2. Yield strength
   3. Tensile strength
   4. All of the above

24.  One purpose of a microscopic examination of a weld is to establish the:

1. 1. Strength of the weld
   2. Number of alloying elements
   3. Grain size
   4. Number of runs used

25.  Nick break specimen test is carried out for:

1. 1. Soundness and fracture appearance
   2. Tensile strength and fracture appearance
   3. Ductility and fracture appearance
   4. All of the above

26.  Submerged arc welds made with re-cycled flux are liable to:

1. 1. Porosity
   2. Underfill and spatters
   3. Incomplete fusion
   4. All of the above

27.  Degreasing components is essential for quality welding but some agents may:

1. 1. Cause corrosion problems
   2. Give off phosgene gas
   3. Leave residues
   4. All the above

28.  The weld metal deposit of MMA electrodes achieves its mechanical strength through:

1. 1. The core wire
   2. The flux coating
   3. Iron powders with the flux coating
   4. None of the above

29.  Submerged arc fluxes can be supplied in two forms. These are:

1. 1. Fused and agglomerated
   2. Agitated and fused
   3. Sintered and agglomerated
   4. None of the above

30.  Which of the following processes uses the ‘key holing’ system of fusion?

1. 1. Friction welding
   2. Thermit welding
   3. Electron beam welding
   4. All of the above

31.  When visually inspecting a fillet weld it would normally be sized by:

1. 1. The leg lengths
   2. The actual throat thickness
   3. The design throat thickness
   4. Both 1 and 3

32.  The main usage of arc cutting/gouging processes is:

1. 1. The cutting of single bevel preparations
   2. The removal of deposited welds
   3. The cutting of single U type preparations
   4. The cutting/gouging of non-ferrous materials only

33.  Which of the following coatings is associated with stove welding?

1. 1. Cellulosic
   2. Rutile
   3. Basic
   4. Oxidising

34.  A welding inspector’s main attribute includes:

1. 1. Literacy
   2. Knowledge and experience
   3. Honesty and integrity
   4. All of the above

35.  Quality assurance is:

1. 1. The inspection of a product or service
   2. Not solely related to planning and inspection
   3. The implementation of quality control
   4. None of the above

36.  Which mechanical test can be used to make an assessment of surfacing breaking defects?

1. 1. Nick break test
   2. Macro test
   3. Bend test
   4. All of the above

37.  Gamma rays and X-rays are part of a family of waves called:

1. 1. Acoustic waves
   2. Light waves
   3. Electromagnetic waves
   4. Transverse waves

38. A surface breaking crack will be detected during a magnetic particle inspection if it is:

1. 1. At right angles to the lines of flux
   2. Parallel to the lines of flux
   3. At 25° to the lines of flux
   4. All the above

39.  A code of practice for visual inspection should include the following:

1. 1. Before, during and after welding activities
   2. Before welding activities only
   3. After welding activities only
   4. None of the above

40.  One advantage of metal gas arc shielded welding is:

1. 1. Can be used in draughty locations without protection
   2. Produces a deposit low in hydrogen content
   3. Both 1 & 2
   4. Neither 1 nor 2