MT Level 1 :: ASNT/NDT Mock Test Practice Quiz | MCQ’s Part-3

Non-Destructive Testing: 60′ Questions for Conduct of Examinations at NDT MT Levels-1

Magnetic Testing Level -1 (MT-1) General Examination Part-3

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MT Level 1 :: NDT Mock Test Practice Quiz MCQ’s Part-3

1.

What type of magnetization uses the formula: (1

 
 
 
 

2.

Which of the following may cause magnetic particle test indications?

 
 
 
 

3.

Magnetic particle test indications which are due to cold work can best be removed by:

 
 
 
 

4.

Magnetic particles testing is most likely to find subsurface discontinuities in:

 
 
 
 

5.

The magnetism which remains in a piece of magnetizable material after the magnetizing force has been removed is called the:

 
 
 
 

6.

Which technique is the most sensitive?

 
 
 
 

8.

The type of method most frequently used with mobile equipment is the:

 
 
 
 

9.

The areas on a magnetised part from which the magnetic field is leaving or returning into the part are called:

 
 
 
 

10.

The magnetic field is strongest when:

 
 
 
 

11.

An internal rupture caused by working steel at improper temperatures is called a:

 
 
 
 

12.

Which of the following is not an advantage of magnetic particles testing?

 
 
 
 

13.

The residual method is applicable to:

 
 
 
 

14.

Subjecting the part to a magnetic field that is constantly reversing in polarity and gradually diminishing in strength accomplishes one of the following:

 
 
 
 

15.

The point at which the magnetism in a material cannot be increased even though the magnetizing force continues to increase is known as the:

 
 
 
 

16.

Loss of fine particle sizes due to re-use of dry particles would probably lead to:

 
 
 
 

17.

The primary reason for using water rather than oil as a suspension medium for wet method baths is that:

 
 
 
 

18.

Which of the following can be magnetized?

 
 
 
 

19.

Which residual field is most difficult to demagnetize?

 
 
 
 

20.

Which of the following is most often used for dry magnetic particle inspection:

 
 
 
 

21.

Cracks that are caused by a combination of tensile stress and corrosion are called:

 
 
 
 

22.

The space within and surrounding a magnetized part of a conductor carrying a current is known as:

 
 
 
 

23.

To detect lengthwise defects on the inside diameter of hollow parts, you should:

 
 
 
 

24.

The most effective NDT method for locating surface cracks in ferromagnetic materials is:

 
 
 
 

25.

A residual field is always less than a continuous field because?

 
 
 
 

27.

The retentivity of a material describes:

 
 
 
 

28.

Which of the following is a disadvantage of the dry method?

 
 
 
 

29.

Which brings out surface indications most clearly?

 
 
 
 

30.

The retentivity of a material describes:

 
 
 
 

31.

A continuous linear indication along the edge of a new fillet weld would most likely be a:

 
 
 
 

32.

The most common cause of non-relevant indications in MT is:

 
 
 
 

33.

When a magnetic field is induced in a part with prods spaced 150mm apart, the field is:

 
 
 
 

34.

When a ferromagnetic material is in an unmagnetized state, the domains are:

 
 
 
 

35.

Magnetic lines of force:

 
 
 
 

36.

The field in a section of pipe being magnetized by means of a central conductor is stronger at:

 
 
 
 

37.

The type of current that is best suited to detect surface discontinuities is:

 
 
 
 

38.

Which of the following is a disadvantage of the wet method?

 
 
 
 

39.

With current flowing from + to – in a coil, a longitudinal field is created. Which of the following may be used to establish the direction of the magnetic field?

 
 
 
 

40.

Ferromagnetic material is:

 
 
 
 

41.

Which of the following does not represent a limitation of magnetic particle testing?

 
 
 
 

42.

A longitudinal surface crack in a circularly magnetized part will cause:

 
 
 
 

43.

Which form of magnetization is easiest to control in most parts?

 
 
 
 

44.

The strength of a magnetic field within a coil is determined by:

 
 
 
 

46.

Where possible, circular magnetization is preferable to longitudinal magnetization because:

 
 
 
 

47.

A seam would be classified as what type of discontinuity?

 
 
 
 

48.

Retentivity:

 
 
 
 

49.

The type of discontinuity potentially most harmful to the useful life of a part is:

 
 
 
 

50.

Which statement is true when related to magnetic lines of force?

 
 
 
 

51.

An electric current through a copper wire:

 
 
 
 

52.

The unit usually used to denote flux density is the:

 
 
 
 

53.

A lamination in steel plate would be classified as what type of discontinuity?

 
 
 
 

54.

Which of the following is an advantage of the dry method?

 
 
 
 

55.

Which of the following might cause nonrelevant indications?

 
 
 
 

56.

The pipe would be classified as what type of discontinuity?

 
 
 
 

57.

Which of the following is NOT a liquid vehicle in which particles are suspended in magnetic particle testing:

 
 
 
 

58.

Which of the following is an advantage of the wet method?

 
 
 
 

59.

A metal that is difficult to magnetize is said to have:

 
 
 
 

60.

A discontinuity that is produced during solidification of the molten metal is called:

 
 
 
 

Question 1 of 60

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