API 510- PREPARATORY BENCH MARK QUIZ PART-1

API 510 PREPARATORY

BENCH MARK QUIZ

1.Which of the following types of discontinuities is not normally

detected by radiography?

a.Cracks

b.Incomplete penetration

c.Laminations

d.Slag

2.API 510 __________ be used as a substitute for the original construction of pressure vessels before it is placed in-service.

a)Shall not

b)Should

c)May

d)Shall

3.Compared to ASTM A 515 Gr. 60 plates, ASTM A 516 Gr. 60 plates have:

a.Better Tensile Strength

b.Better toughness

c.Better high temp. properties

d.None of above

4.Who establishes inspection interval for thickness measurements, and external visual inspections.

a)Vessel engineer;

b)Owner-user or the inspector

c)Corrosion Engineer

d)NDE engineer

5.ASME Sec. VIII Div.1 is based on factor of safety equal to

a)4

b)3

c)3.5

d)2.5

6.Identify incorrect statement from following, if any.

a.A welder performing procedure test is also qualified in that position.

b.Supplementary essential variables become

essential variables when impact test is specified.

c.For procedure qualification, the test can be performed in any position as the position is not essential variable for procedure qualification.

d.None of above is incorrect statement

7.In plate specification A 516 Gr 70, the letter A indicates:

a.That material is ASME material. (A for ASME)

b.That material is Ferrous material

c.That material is Non-Ferrous material

d.None of the above

8.The symbol which indicates ASME code stamping for vessels manufactured to ASME Section VIII Div. 1 is

a) U1

b) U2

c)U

d) None of these

9.What will be the mandatory Edition and addenda for ASME Sec. VIII, Div. 1 to be used as on 4 September 2004?

a.2001 edition and 2002 addenda

b.2001 edition and 2003 addenda

c.2001 edition with 2004 addenda

d.None of the above

10.The term E used in shell thickness formula in ASME Sec. VIII Div.1, represents weld joint efficiency, whose value is equal to 1,if:

a.Longitudinal and circumferential welds are radiographed for their entire length

b.Longitudinal welds are radiographed for their entire lengthand circumferential welds are spot radiographed .

c.Both welds are spot radiographed

d.a and b above

11. A restoration work by weld-overlay was carried out on corroded wall of vessel and it can now be used as per the design conditions of the vessel. This activity will be termed as:

a.Renewal of vessel

b.Repair of vessel

c.Alteration to vessel

d.Re-rating of vessel

12.In certain MP. Check of pr. Vessel, The size of "indication" for a certain discontinuity was seen as 4 mm but after the MP. Check

and using magnifying glass it was seen having actual size as 2.5mm only. If stipulated acceptance criteria for that type of

discontinuity was 3 mm, your decision is:

a.The size of indication is higher than 3mm. Reject.

b.The size of discontinuity is lower than 3 mm, Accept.

c.Depends on opinion of Examiner.

d.Depends on the procedure adopted for MPI. i.e dry or wetparticles.

13.ASME Code requires averaging of impact test values of how many specimen for the relevant acceptance criteria.

(a)2

(b)3

(c)4

(d)None of these

14.A stainless steel weld has a crack open to the surface . Which NDT method will reveal it effectively?

a.Liquid Penetrant

b.Magnetic particle

c.Radiography

d.All of above.

15.PQR document normally may be revised and re submitted for acceptance.

a.True

b.False

c.Depends on company policy

d.Depends on Third party inspector’s discretion.

16.Hot tapping is best described by statement:

a. It is technique of preheating the vessel wall to specified temperature and tapping with

1lb. rounded hammer to detect wall thinning

b. It is technique of providing a tapping connection while the system is in operation

c. It is technique of fixing a on/off tap on drain nozzle of pressure vessel

d. It is act of pre heating the component before using the tap and die for threading so that less effort is required for threading operation.

17.Which of the following represent grouping of weld-metals in ASME IX?

a.P – Nos

b.F – Nos

c.S – Nos

d.A - Nos

18.A inspector should be stricter while carrying out inspection on:

a.Longitudinal Joint

b.Circumferential Joints

c.Both are equally critical as per ASME Sec. VIII, Div.1

d.Depends on QA plan

19.PT examination is used to detect the surface cracks in welds aswell as in base metal plates. For proper detection,

a.We should allow higher penetrant time on weld

b.We should allow higher penetrant time on plates

c.Penetrant time on weld as well as plates is same

d.Depends on type of penetrant used.

20.As per ASME Sec. VIII Div. 1, “Weld joint category” means:

a.Type of weld, i.e., Single V type, Double V type, U type etc.

b.Type of weld, i.e., Full penetration, partial penetration etc.

c.Location of weld, i.e., longitudinal, circumferential, nozzle attachment weld etc.

d.Type of weld joint, i.e., Butt-weld joint, fillet weld joint, lap

joint, etc.