ET Level 1 :: Eddy Current Testing MCQ’s Part-3 | Quiz Practice for ASNT/NDT Exam Questions

Non-Destructive Testing: Total 150′ Questions for Conduct of Examinations at NDT ET Level-1. (Quiz Part-1 50′ MCQs, Part-2 50′ MCQs, Part-3 50′ MCQs.).

Eddy Current Testing Level -1 (ET) General Examination Part-3

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ET Level 1 ASNT / NDT Test 3. This is a quiz over the various topics covered throughout the Eddy Current Testing Level 1 section to test your understanding. Click “below button ‘or ‘Scroll down” to start your test.

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ET Level 1 :: NDT Eddy Current Testing MCQ’s Practice Part-3

1.

Which of the following would normally be considered the best fill factor when testing straight tubing with an encircling or feedthrough coil?

 
 
 
 

2.

The readout mechanism used when testing by the ellipse method is:

 
 
 
 

3.

Which of the following eddy current test coil arrangements uses one area of the test specimen as a reference standard against which another area on the same specimen is simultaneously compared?

 
 
 
 

4.

Lift-off is utilized in:

 
 
 
 

5.

The primary purpose(s) of the secondary winding in an eddy current coil is to:

 
 
 
 

6.

Reference standards used for eddy current testing:

 
 
 
 

7.

Which of the following products would be most applicable to a test using an inside coil?

 
 
 
 

8.

The main purpose of spring-loaded eddy current probe coils is to:

 
 
 
 

9.

An eddy current test coil?s opposition to the flow of alternating current is called:

 
 
 
 

10.

All ferromagnetic variations may retain a certain amount of the magnetically saturated to suppress permeability magnetization called the:

 
 
 
 

11.

A reference standard used to ensure that the amplitude and phase characteristics of an eddy current system do not drift during continuous testing is called a:

 
 
 
 

12.

A test specimen used as a basis for calibrating test equipment or as a comparison when evaluating test results is referred to as a:

 
 
 
 

13.

Which of the following conditions would be the most difficult to detect when an eddy current testing rod with an encircling coil?

 
 
 
 

14.

The ratio of the response or amplitude from signals of interest to the response or amplitude of indications that contain no useful information for the test being conducted is referred to as:

 
 
 
 

15.

An increase in the impedance of an eddy current test coil will:

 
 
 
 

16.

The entire circumference of a test part is evaluated at one time when using:

 
 
 
 

17.

Figure 1 is an illustration of a material:

 
 
 
 

18.

When testing tubing with an inside diameter coil most of the eddy currents:

 
 
 
 

19.

Which of the following is not a basic component of eddy current equipment?

 
 
 
 

20.

Some of the products commonly tested using encircling coils are:

 
 
 
 

21.

The process of comparing the reading or output of an instrument

 
 
 
 

22.

The characteristics of the alternating magnetic field in the vicinity of the ac coil are affected by:

 
 
 
 

23.

An eddy current is a circulating electrical current induced in a conducting article by:

 
 
 
 

24.

Eddy currents are circulating currents induced in a conducting material by a:

 
 
 
 

25.

The single absolute coil arrangement can be used in:

 
 
 
 

26.

IACS is a recognized abbreviation for:

 
 
 
 

27.

Eddy current test coils which are wound to form a wide coil would normally be used to detect:

 
 
 
 

28.

When using an encircling coil with both primary and secondary windings the excitation alternating current is applied to:

 
 
 
 

29.

The impedance of an eddy current test coil will increase if the:

 
 
 
 

30.

When a test coil consists of a double winding arrangement

 
 
 
 

31.

Eddy current test coils which are wound to form a narrow coil would normally be used to detect:

 
 
 
 

32.

In order to generate measurable eddy currents in a test specimen the specimen must be:

 
 
 
 

33.

Direct current saturation coils would most likely be used when testing:

 
 
 
 

34.

Which of the following could not be tested by the eddy current testing method?

 
 
 
 

35.

When attempting to determine the exact point location of a discontinuity the test system should include:

 
 
 
 

36.

When testing ferromagnetic materials the depth to which eddy currents are induced in the material will be determined by the:

 
 
 
 

37.

One method of reducing nonrelevant indications when eddy current testing ferromagnetic materials are to:

 
 
 
 

38.

An ac current flowing in a conductor will set up:

 
 
 
 

39.

When the eddy currently testing the rod for discontinuities which of the following conditions could produce extraneous indications?

 
 
 
 

40.

Which of the following test frequencies would produce eddy currents with the largest depth of penetration?

 
 
 
 

41.

When conducting an eddy current test using a differential comparison coil arrangement that compares an external reference standard with the test. specimen the system should be nulled or balanced:

 
 
 
 

42.

In eddy current test systems where encircling coils are used the coupling efficiency is referred to as:

 
 
 
 

43.

It is often possible to sort various nonmagnetic alloys of a metal by means of an eddy current test when:

 
 
 
 

44.

Which of the following is not applicable to eddy current testing?

 
 
 
 

45.

When testing a plate with a probe coil it is noted that the eddy current output indication varies as the distance from the coil to the surface of the test part varies. The term used to describe this action is:

 
 
 
 

46.

The conductivity of a material can be changed by changing the:

 
 
 
 

47.

Which of the following will affect the impedance of an encircling eddy current test probe?

 
 
 
 

48.

When inspecting products with a uniform cross-section an eddy current signal is produced when the leading end or trailing end of the product approaches the test coil. This phenomenon is referred to as:

 
 
 
 

49.

When a magnetic metal part is placed in an eddy current test coil the impedance of the coil will be changed by which of the following properties of the part?

 
 
 
 

50.

In an eddy current testing situation

 
 
 

Question 1 of 50

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