ASNT LEVEL III Basic Questions and Answers

1) SNT-TC-I A recommends that in certification of Level III personnel the employer:

2) Pure iron melts at a temperature of

3) The term ________ is used to refer to the relatively finely spaced surface irregularities, the height, width, and direction of which establish the predominant surface pattern.

4) Progressive solidification in casting means:

5) Electro-polishing increases the average smoothness of a given surface by:

6) Hollow Product can be produced using:

7) A break in the magnetic uniformity of a part that is called a magnetic discontinuity is related to a sudden change in

8) During machining, some material adhering to the tip temporarily, then escaping both over and under the tool tip. This leads to fluctuating forces, which may cause machining vibrations referred to as:

9) Phenol Formaldehyde, known as Bakelite is a:

10) May an employer deviates from the guidelines given in SNT-TC 1A to meet his specific needs?

11) In accordance with SNT-TC-1A, Level I and Level II written specific examination should include question with cover:

12) Materials that change shape with temperature, change dimension with application of an electrical impulse, or respond to strain by producing a magnetic field are called:

13) Which NDT methods should be used for controlling the thicker plate of an alloyed steel in order to check the presence of Laminations?

14) According to SNT-TC-IA, the employer can consider an individual to be qualified to Level III, but only if he/she:

15) The term used to indicate pressure above the zero value corresponding to a perfect vacuum is

16) AE Sensors are operated in

17) Diamagnetic materials have a permeability _________.

18) As per CP-189, to consider for certification as Level III the recommended experience periods are different:

19) Casting Shrinkage Occurs in Three Stages as-Shrinkage in the Liquid, Solidification Shrinkage and _________

20) Passing grade for employer administered certification examination as per CP 189 is:

21) High-speed steel (HSS) tool steel maintains cutting hardness and strength to approximately what temperature?

22) Cores are designed to _________ after the molten material solidifies.

23) Localized corrosion attacks or targets one area of the material and their types are:

24) In order for a candidate to be certified as an NDT Level III accordance CP-189. Which of the following is correct?

25) When only a small number of pieces need to be manufactured, __________ is generally a cost-effective option.