Mechanical QC Inspector Question Answers | CBT Aramco

This article is about Mechanical QC Inspector Question Answers related to topic of Mechanical Inspection as per Saudi Aramco or International Standards. This questions can be useful for who are attending CBT Aramco Test or other international test for Mechanical QC Inspector or Engineer.

Mechanical QC Inspector Question Answers | CBT Aramco

1. What is NACE MR0175?                                                                                                                                                                                                                                                                                              Ans. National Association of Corrosion Engineers NACE MR0175: Standard Material Requirement-Sulfide stress cracking resistant metallic material for oilfield equipment.
2. What is the meaning of CSD?                                                                                                                                                                                                                                                                                    Ans. Consulting Services Department
3. What is RTR?
   Ans. Reinforce Thermosetting Resin
4. What is AWWA?
   Ans. American Water Works Association
5. AWS D1.1 structural, don’t need to qualify for WPS? (True or false)
   Ans. False
6. What is the vision of an inspector?
   Ans. Jaeger 1
7. What electrode used for overhead position?
   Ans. 6010,
8. Does the 6010 can apply over the 7018 vertical position?
   Ans. No
9. Stud welding is based on AWS D1.1? (True or false)
   Ans. True
10. Lack of fusion can detect by?
    Ans. Ultrasonic Test (UT)
11. Which one will be a shielding?
    Ans. Flux
12. What is the purpose of shielding?
    Ans. To prevent atmospheric contamination during welding
13. What is the Carbon Equivalent? Why it is important?
    Ans. To determine the material capabilities
14. How to measure raised faced finish?
    Ans. Surface comparator gauge
15. What is thermal expansion?
    Ans. The increase of material due to increase of temperature
16. PWHT is required to apply on 1” thickness? (True or false)
    Ans. True
17. In overhead position, what kind of electrode is acceptable?
    Ans. 6010
18. What other American code required for testing pipeline and welder qualification?
    Ans. ASME IX (Welding & Brazing Qualification)
19. Is hardness test, can be use to determine tensile strength?
    Ans. No
20. Preheat is needed in tack welding in thick materials?
    Ans. Yes
21. What are the types of joint?
    Ans. Butt, lap, tee, corner, edge
22. Which is harder, steel containing 0.1% or 0.5% carbon?
    Ans. 0.5% carbon
23. What grooves use for SAW process? When to use this preparation(groove)?
    Ans. U, V & Square grooves
24. What is GMAW mode of transfer?
    Ans. Globular, spray, pulse , short circuiting
25. Type of RTR joints?
    Ans. Bell & spigot, socket, flange joint
26. Basic instrument use to measure preheat temperature?
    Ans. Temperature indicating crayon (Tempil stick), contact pyrometer
27. Circumferential seam, weld first than longitudinal seam? (True or false)
    Ans. False
28. Is 6010 electrode design to apply to 7018 electrode on vertical position? (True or false)
    Ans. False
29. How to repair too close root gap?
    Ans. By means of grinding
30. What you will do if you found welder doing wrong?
    Ans. ask the welding foreman
31. What American standard for structural welding?
    Ans. AWS D1.1
32. Why 316L has low carbon content in stainless steel?
    Ans. L- is represent low carbon content
33. What is a good attitude of an inspector?
    Ans. Quality minded. knowledgeable, experience, impartial, informed etc.
34. Type of joint category?
    Ans. Category A, B, C, D base on UW 3, table UW 13
35. Hardness test is one requirement of NACE MR0175, what the other requirements?
    Ans. Nickel content shall be less than 1%
36. Ferromagnetic materials can be detected by?
    Ans. (MT) Magnetic Particle Test
37. Code of quality inspection standard?
    Ans. ISO
38. Difference between DCRP (Direct Current Reverse Polarity) & DCEP (Direct Current Electro Positive)?
    Ans. No difference
39. What is ASME sec. V?
    Ans. Non-Destructive Examination (NDE)
40. Where to apply preheat?
    Ans. On weld joint plus 50mm both side of the joint
41. Where to measure preheat?
    Ans. at both side of the joint (parent metal)
42. For non-magnetic materials, what kind of NDT to be used?
    Ans. Penetrant Test (PT)
43. Give two kinds of material that direct current (DC) welding machine can be used?
    Ans. P1, P5 materials
44. Describe 3G position?
    Ans. Vertical position
45. Radio graphic test is the most effective to detect lack of sidewall fusion? (True or false)
    Ans. False, UT is the most
46. Why preheat is needed for alloy materials?
    Ans. To avoid cracking
47. What 5G position in ASME sec IX is qualified?
    Ans. Flat, overhead, vertical position
48.  What filler metal to be used on 304 to SA 516 GR70 material first layer?
    Ans. ER309L
49. What P number for SA 516 GR70?
    Ans. P1
50. As an inspector, do you reject if the NDE results have a discontinuity?
    Ans. No
51. In 10’0”circumferential, how much @ 45 degree?
    Ans. 1 ¼ feet
52. Lamination defect can detect by?
    Ans. Ultrasonic Test (UT)
53. How many minutes in 1 degree?
    Ans. 60 minutes
54. What 6G position?
    Ans. All position
55. What is the minimum tensile strength of 7018 electrode?
    Ans. 70,000 psi

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