PT Level II
50.) Which of the following is a discontinuity that might be found in rolled plate stock? A. Shrinkage cracks. B. Inclusion. C. Forging laps. D. Blow holes.
B.
51.) Which of the following is an advantage of fluorescent penetrants over visible type penetrants? A. The inspection can be carried out in a well lighted area. B. Small indications are more easily seen. C. They can be used where contact with water is objectionable. D. Less sensitive to contamination of discontinuities.
B.
54.) The tendency of a liquid penetrant to enter a discontinuity is primarily related to? A. the viscosity of the penetrant. B. the capillary forces. C. the chemical inertness of the penetrant. D. the specific gravity of the penetrant.
B.
56.) The prime purpose of the black light for fluorescent penetrant inspection is? A. to magnify indications. B. to make the indications visible. C. to develop indications. D. to speed up inspection.
B.
6.) Which of the following types of discontinuities will not be detected by the liquid penetrant test method? A. Surface laminations. B. Internal forging bursts. C. Surface cracks. D. Surface laps.
B.
60.) Rejection or acceptance of parts should be based on which of the following, in absence of written acceptance criteria? A. The inspector's education. · B. The design of the part and its intended application. C. The appropriate penetrant standard. D. The selection of the penetrant.
B.
63.) Dry developer should be applied? A. so that a heavy coat of developer covers all surfaces. B. so that a light dusting covers all surfaces to be inspected. C. with a dry paint brush. D. by dipping.
B.
67.) The part is an aluminum casting. Description - the casting has a very complex design. In one section there is a flat area having a thickness of 1/8". In the center of this area is a round stection, 2" thick and 1" in diameter. There are linear indications about one-half the distance around the base where it joins into the thin section. The indication is termed? A. dross. B. hot tear. C. microshrinkage. D. porosity.
B.
69.) Which of the following is a discontinuity that might be found in a forging? A. Shrinkage crack. B. Lap. C. Hot tear. D. Lamination.
B.
75.) A crack type discontinuity will generally appear as? A. a round indication. B. a continuous line, either straight or jagged. C. a straight, single solid line. D. random round or elongated holes.
B.
14.) The penetrant indication for a cold shut on the surface of a casting will be? A. A dotted or smooth continuous line. B. A cluster of small indications. C. A rough deep indication. D. A large bulbous indication.
A.
19.) Penetrant residues may become entrapped under splines, fasteners, rivets, etc. Which of the following is the most likely reaction caused by such a residue? A. Corrosion caused by the moisture attracted by such residues B. Paint stripping C. Fatigue cracking D. Lattice structure breakdown
A.
23.) Which of the following methods for applying non-aqueous developer is normally considered most effective? A. Spraying. B. Swabbing. C. Brushing. D. Dipping.
A.
24.) Of the methods listed below, the most effective means of precleaning a test item prior to a penetrant test is? A. vapor degreasing. B. detergent cleaning. C. steam cleaning. D. solvent wiping.
A.
28.) Prior to penetrant testing of a previously machines soft metal part, which of the cleaning methods listed below would best remove any smeared metal that could mask discontinuities? A. Etching. B. Shot penning. C. Alkaline cleaning. D. Water cleaning with detergent.
A.
31.) Which of the following is the best reason why the application of emulsifier by a brush is not recommended? A. The brushing action mixes the emulsifier with the penetrant prematurely and irregularly, making accurate control of the emulsification time impossible. B. Brushing does not always completely coat the part, thereby leaving a portion of the part difficult to wash. C. Brushing in itself is not harmful, but many types of brush materials combine with emulsifier agents resulting in penetrant and part contamination. D. Brushing results in a streaking appearance during inspection.
A.
37.) When penetrant testing for shallow discontinuities using a post-emulsification penetrant, the emulsification time should be long enough to? A. mix the emulsifier with the excess surface penetrant only. B. mix the emulsifier with all the penetrant on the surface and in discontinuities. C. mix the emulsifier with penetrant in the discontinuities. D. allow the emulsifier to dry out to a white powder.
A.
4.) Which of the items listed below is not an advantage of the liquid penetrant test method? A. The method can find all types of discontinuities. B. The method is simple in principle and relatively easy to understand. C. The method is essentially simple in application. D. There are few limitations on the size and shape of the article that can be treated by this method.
A.
40.) An important difference between non-water-washable penetrants and water·washable penetrants is that? A. water-washable penetrants contain an emulsifier, while non-water-washable penetrants do not. B. the viscosity of the two penetrants is different. C. the color of the two penetrants is different. D. non-water-washable penetrants are more easily removed than are water-washable penetrants.
A.
46.) Which of the following discontinuities might be found enrolled plate? A. Laminations. B. Shrinkage. C. Lack of fusion. D. Undercut.
A.
59.) When viewing parts, fluorescent background may indicate? A. poor washing. B. insufficient emulsifying time (Post-Emulsification Method). C. porous material and coating. · D. improper cleaning before penetrant cycle.
A.
64.) Which factor would apply in determining the dwell time required for the penetrant to be effective? A. Type of discontinuity sought. B. Shape of part. C. Size of part. D. Surface roughness.
A.
65.) The part is an aluminum forging. Description - the indication is sharp, half-moon shape, not deep, and is called a? A. lap. B. center line porosity. C. heat-treat crack. D. false indication.
A.
71.) The term "non-relevant indication" is used to describe certain types of penetrant testing indications. Which of the following would be a typical " non-relevant indication"? A. Indication due to part geometry or part design configuration. B. Nonmagnetic indications. C. Multiple indications. D. Non-linear indications.
A.
72.) Which of the statements below best states the danger of using sandblasting for cleaning surfaces to be penetrant tested? A. The discontinuities may be closed. B. Oil contaminants might be sealed in the discontinuities. C. The sand used in the sandblasting operation may be forced into the discontinuity. D. The sandblasting operation may introduce discontinuities in the part.
A.
9.) Which of the following discontinuities could be classified as a service induced discontinuity? A. Fatigue crack. B. porosity. C. Machining tear. D. Lap.
A.
11.) Aluminum alloy test specimens that have been tested by the liquid penetrant method should be thoroughly cleaned after testing because? A. the acid in the penetrant may cause severe corrosion. B. the alkaline content of wet developers and most emulsifiers could result in surface pitting, particularly in moist atmospheres. C. the toxic residue from the test will severely inhibit the application of paint on aluminum alloys. D. a chemical reaction between the penetrant and aluminum could cause a fire because of internal combustion.
B.
16.) When conducting a penetrant test, spherical indications on the surface of a part could be indicative of? A. fatigue crack. B. porosity. C. weld lap. D. hot tears.
B.
21.) Developer assists in the detection of the visible dye penetrant test indications by? A. providing a clean surface. B. providing a contrasting background. C. providing a dry surface. D. emulsifying the Penetrant bleed-out.
B.
32. Developing time depends on the? A. type of penetrant used. B. type of developer used and type of discontinuity to be detected. C. temperature of the material being tested. D. all of the above.
B.
36.) The function of the emulsifier in the post-emulsification penetrant method is to? A. more rapidly drive the penetrant into deep, tight cracks. B. react with the surface penetrant to make the penetrant water-washable. C. add fluorescent dye or pigment to the penetrant. D. provide a coating to which day powder developer can adhere.
B.
42.) When p testing Titanium alloys, the materials used in the penetrant system should not contain any constituent quantities of? A. carbon or oil. B. halogenated solvents. C. emulsifier or oil. D. fluorescent agent.
B.
44.) Which of the following discontinuities might be found in a welded fabrication? A. Shrinkage. B. Lack of fusion. C. Seams. D. Laps.
B.
48.) Which of the following is a discontinuity that might be found in a forging? A. Shrinkage cracks. B. Laps. C. Cold shuts. D. Insufficient penetration.
B.
43.) Which of the following is a discontinuity which might be found in sand castings? A. Incomplete penetration. B. Undercut. C. Pipe. D. Shrinkage.
D.
15.) The penetrant indication of a forging lap will normally be? A. A round or nearly round indication. B. A cluster of indications. C. A continuous line. D. A dotted line.
C.
2.) The speed with which a penetrant penetrates a surface flaw is influenced to the greatest extent by which of the following properties? A. Density B. Surface tension and wetting ability C. Viscosity D. Relative weight
C.
20.) Developer assists in the detection of penetrants retained in discontinuities by aiding the? A. post-cleaning process. B. emulsification process. C. bleed-out process. D. drying process.
C.
22.) When using post-emulsification penetrants, difficulties incurred during the washing operation can be over-come by? A. reapplying a coating of emulsifier. B. increasing the water pressure used during the washing operation. C. completely reprocessing the part from surface preparation on and by using a longer emulsifier time. D. Dipping the part in boiling water.
C.
25.) Fluorescent materials used in fluorescent penetrants respond most actively to radiant energy, of a wavelength of approximately? A. 1,UOO Angstrom. B. 250 KV. C. 3,650 Angstroms. D. 100 foot candles.
C.
27.) Emulsifier time? A. is important but not normally critical. B. is the time needed to rinse the emulsifier and excess penetrant from the surface. C. is extremely important and will greatly affect test results. D. should be as long as economically practical.
C.
3.) Which of the statements below concerning the operation of the black light bulbs of the mercury arc type is not true? ·· A. It takes nbout 5 minutes for the bulb to warm up to its full output when first turned on. B. The lamp may go out if the line voltage drops below 90 volts . C. Line voltage variations above 120 volts will have little or no effect on the bulb. D. If for any reason the arc is extinguished the bulb will not immediately respond if the lamp is turned on right after it has been turned off.
C.
30.) Which of the following is the best reason why excessive drying of a part is not desired? A. The extra time required is wasted. B. The developer may lose its blotting ability. C. A reduction in resolution may result. D. The excess developer may be difficult to remove.
C.
47.) Which of the following contaminants could affect the sensitivity of a penetrant? A. Acid. B. Water. C. Salts. D. All of the above.
D.
34.) Which of the following statements concerning contaminating materials on the surface of a part to be penetrant test is not true? A. The contaminant may be of a composition that attacks the penetrant and reduces the fluoresence or color of the penetrant. B. The contaminants may be of such a nature that they reduce or even prevent capillary action by the penetrant. C.The contaminant may retain the penetrant and thus increase the sensitivity of the inspection. D.The contaminant may completely fill the crack and thus prevent the entry of penetrant.
C.
39.) A commonly-used method of checking on the overall performance of a penetrant material system is by? A. determining the viscosity of the penetrant. B. measuring the wetability of the penetrant. C. comparing two sections of artificially cracked specimens. D. all of the above.
C.
45.) Which of the following discontinuities might be found in rolled bar stock? A. Shrinkage. B. Bleed-out. C. Laps. D. Undercut.
C.
49.) Which of the following is a discontinuity that might be found in rolled bar stock? A. Blow holes. B. Shrinkage laps. C. Cracks or seams. D. Insufficient penetration.
C.
55.) The emulsifier is used? A. to wash the penetrant out of discontinuities. B. as an aid in washing off the surface of parts when using either the water or oil soluble penetrants. C. to emulsify the oil-soluble penetrant, thereby making it water washable. D. to preclean parts before applying penetrant.
C.
57.) Why is it advisable to have a black light installed at the wash station? A. So that inspection can be done without drying parts. B. To speed the bleeding of penetrant out of defects. C. To check the effectiveness of the wash cycle. D. To determine if parts have been covered with penetrant.
C.
62.) Which of the following is most apt to render the post-emulsification test ineffective? A. Too long of a penetrant time. B. Too long of a developing time. C. Too long of an emulsifying time. D. None of the above.
C.
68.) Shrinkage cracks are usually found in what areas of a casting? A. Thin sections only. B. Heavy sections only. C. Abrupt changes in thickness. D. No longer a problem.
C.
7.) Which of the following discontinuities could be classified as a primary processing discontinuity often found in cast materials? A. Fatigue crack B. Stress - corrosion crack C. Porosity D. Lack of penetration
C.
70.) Which of the following is a discontinuity that might be found in rolled bar stock? A. Blow hole. B. Shrinkage lap. C. Crack or seam. D. Lack of penetration.
C.
1.) Which of the following physical properties, more than any other, determines what makes a material a good penetrant? A. Viscosity B. Surface tension C. Wetting ability D. No one single property determines if a material will or will not be a good penetrant.
D.
10.) Which of the test part characteristics listed below are normally considered before the specific liquid penetrant test method is selected? A. The kind and size of discontinuities most likely to occur. B. The intended application for the part. C. The surface finish of the part. 'D. All of the above.
D.
12.) Which of the following are typical of foreign matter which might block the openings of discontinuities if the surface of a test specimen is not properly cleaned? A. Paint. B. Scale. C. Core and mold material. D. All of the above.
D.
13.) Which of the following is not a recommended method of removing grease from a surface of a part to be penetrant tested? A. Vapor degreasing. B. Alkaline cleaner. C. Cleaning with solvent - type material. D. Hot water rinse.
D.
17.) Which of the following is not a form in which penetrant developer is commonly available? A. Dry developer. B. Non-aqueous developer. C. Wet developer. D. High viscosity developer.
D.
18.) Which of the following is a possible cause for false penetrant indications? A. Excessive washing B. Inadequate application of developers C. Penetrant or part too cold during penetration time D. Lint or dirt
D.
26.) When performing a liquid penetrant test using solvent removable visible dye penetrant, there are several ways to remove excess penetrant from the surface of the part. Which of the methods listed below is generally regarded as most suitable for giving accurate test results? A. Squirting solvent over the surface with no more than 40 psi pressure. B. Wiping with a soaking wet cloth, then wiping with a dry cloth. C. Wiping with a solvent dampened cloth, then wiping with dry cloths. D. Wiping with dry paper wipes, then wiping with a solvent dampened cloth, and fin1ally wiping with dry cloth.
D.
29.) Which of the following is a purpose of the drying process used in penetrant testing? A. The drying process is used to assure that all excess penetrant will evaporate. B. The drying process assures the uniform drying of dry developer applied over wet emulsifier. C. The drying process reduces penetration time. D. After the application of a wet developer, the drying process aids in securing a uniform developer coating.
D.
33.) When using a fluorescent, post-emulsifiable penetrant, the length of time the emulsifier is allowed to remain on the part is critical when detecting shallow scratch-like discontinuities. The best length of time should be? A. 10 seconds. B. 5 seconds. C. 2 to 3 seconds. D. determined by experimentation.
D.
35.) Water-washable liquid penetrants differ from post-emulsification penetrants in that water-washable penetrants? A. can only be used on aluminum test specimens. B. need not be removed from surfaces prior to development. C. have a soapy base. D. do not need the application of an emulsifier before rinsing.
D.
38.) Which of the following is not good practice when penetrant testing? A. Applying emulsifier by dipping the part in emulsifier. B. Applying developer by spraying the part with developer. C. Removal of water-washable penetrant with a water spray. D. Applying emulsifier with a brush.
D.
41.) Which of the following characteristics are normally considered when selecting the type of penetrant to be used in a penetrant test? A. Removal characteristics of the penetrant. B. The flash point of the penetrant. C. The cost of the penetrant. D. All oft.he above.
D.
5.) Which of the statements below apply to the liquid penetrant method of testing? A. The penetrant test method is less flexible than the eddy current test method. B. The penetrant test method is less reliable than the magnetic particle method for finding surface defects in ferrcmagentic materials. C. The Penetrant test method will not detect fatigue cracks. D. The penetrant test method is more reliable than radiographic testing when attempting to detect minute surface discontinuities.
D.
52.) Which of the following is an advantage of visible dye penetrants over fluorescent penetranls? A. Small indications are more easily seen. B. They can be used on anodized and chromate surfaces. C. They make less background on rough surfaces. D. No special lighting is required.
D.
53.) Which of the following is an advantage of solvent wipe methods over water washing? A. No special lighting is necessary during inspection. B. They provide a quicker penetration of small openings. C. Small indications are more easily seen. D. They can easily be carried out in the field and to remote areas.
D.
58.) Developing powder should always be? A. highly fluorescent. B. applied wet. C. colorless. D. evenly applied
D.
61.) When improper processing causes inspection difficulties, what should the inspector do? A. Swab parts with a solvent. B. Use a correct bleed-back procedure. C. Erase non-relevant fluorescence. D. Reprocess the part.
D.
66.) The part is a 1/2" thick aluminum plate with a Vee weld. Description - the indication appears in an area that is somewhat dish-shaped. The indication extends out from the center in a spoke formation. The indication is? A. Shrinkage. B. Non-relevant. C. A quench crack. D. A crater crack.
D.
73.) A continuous linear indication can be caused by which of the following discontinuities? A. Porosity. B. Slag inclusions. C. Pitting. D. Cracks.
D.
74.) Which of the following could be a source of false indications on a test specimen? A. Penetrant on the test table. B. Penetrant on the hands of the inspector. C. Contamination of dry or wet developer with penetrant. D. All of the above.
D.
76.) Which of the following discontinuities would be impossible to detect using a liquid penetrant test? A. Forging lap. B. Crater cracks. C. Grinding cracks. D. Non-metallic internal inclusions.
D.
8.) Which of the following discontinuities could be classified as a finishing processing discontinuity? A. Fatigue crack. B. Stress - corrosion crack. C. Lamination. D. Heat - treat crack.
D.
