ASME MT-II級考試試題

分一般、專業考試試題{:soso_e100:}

SPECIFICEXAMINATION PAPER FOR

MT EXAMINER LEVEL II

TEST PAPER CODE：MTLⅡ（S）-2009    APPROAL：

1.A roundindication is one of circular or elliptical shape with a length equal to orless   times its width.  

2. Fornonfluorescent particles, the recommended settling volume is from ～      ml in a 100mlbath sample .

3. When thethickness of material is less than 19 mm,the magnetizing current shall beAtoA per mm of prod spacing.

4. What are the minimum and maximum prod spacing?

a.mm minimum;       b.mm maximum

5. Examination of weld seams shall includeat leastmm of base material oneach side of the weld where possible.

6. What are the unacceptance relevantindications,under DG/ASME1416. procedure for compressional welds any relevantlinear indication,  relevent roundedindications greater than and four or more relevant relevant indicationsin a line separated byor less, edgeto edge.

7. When use surface contrast enhancement, it shall bedemonstrated that indications can be detected throught the enhancement coating.

a. True             b.False

8. All indications found by magnetic particleexamination shall be repaired by grinding.

a. True             b. False

9. Magnetization current shall be applied for a minimumof S and inspection carried outby the continuous method.

a. 0.5 S .           b. 1 S .

c. 1-3 S.           d. greaterthan 3 S.

10. Themagnetizing current used in the coil technique is:

a. 4～5 Ampsmillimetre length.             b. 28～36 Ampsper millimetre diameter.

c. 45.000/L X Turns.                      d. None of the above.

11. When testing by the continual technique, thecurrent is:

    a. Turned on just after the medium has beenapplied.

    b. Shutoff just prior to applying the medium.

    c. Shut off while the medium is being applied.

    d. Shut off after the medium is applied.

12. When it is believed that a defect has been removedby chipping,grinding or flame cutting,the next operation is to:

    a. Repair.

    b. Check, if minimum thickness remains.

    c. Re-examine the area by magnetic particletest.

    d. Sign-off the part.

13. Each DC electromagnetic yoke shall have a liftingforce of at leastkg at themaximum pole spacing that will be used.

    a. 17 kg.          b. 18 kg.

    c. 19 kg.          d. 20 kg.

14. When the thickness of material is greater than 19mm, the amount of amperage used formagnetic particle inspection using the dry prod method??is based on:

   a. Thicknessof part.

   b. Diameterof part.

   c. Distancebetween the prods.

   d. Totallength of part.

15. Normally a satisfactory weld inspection can bemade after the following surface conditioning:

   a. Grind beadflush with the plate.

   b. Fill thebead ripples with the paint.

   c. Wirebrushing,sand or grit blasting.

   d. Acid etch.

16.  For ProdTechn ique, the open circuit voltage of the mangnetizing current source isgreater than     V.

   a. 15V.           b. 20V.

   c.25V.           d. 30V.

17.According to ASME sect .Ⅱ, Art. 7, yoke technique shall only be applied todetect discontinuities that are (      )

    A. near thesurface of the part.                 B.open to the surface of the part.

    C. both Aand B.                             D.depending on the used current.  

18.with nonfluorescent particles, what a minimum lightintensity is required during the examination and evaluation ofindications?  

A. 100  fc (1000Lx) .          B. 50 fc (500Lx)  .

C.30  fc (300Lx) .             D.10 fc (100 Lx) .

19. Direction of magnetization at least to separateexaminations shall be carried out on each area, with prods placed so that theline of flux in one examination are approximately _______ to the lines of fluxin the other.

A. parallel .                   B. perpendicular.

C. 45° .                      D. A and B.

20. A field indicator may be used_______.

A. to demonstrate the presence of an adequate magneticfield.

B. to indicate crack size.

C. for acceptance standard.

D. A, B and C.

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