QUIZ) ASNT L3 PT 1

1. Application of a lipohilic emulsifier is accomplished by

A. A nozzle that provides a coarse spray

B. A nozzle that provides a fine, pressure spray

C. Dipping the part into an open tank

D. By brushing the emulsifier on to the part with a coarse spray

2. Which of the following is not an effective method for removing grease from the surface of a

part to be penetrant tested?

A. Alkaline cleaner

B. vapor degreasing

C. hot water rinse

D. cleaning with solvent-type material

3. The best test for production monitoring of the penetrant process is the

A. ceramic block test

B. cracked Ni-Cr panel test

C. cracked AI block test

D. cracked AI-Cr panel test

4. Abrasive tumbling to remove light scale and burrs from cast parts is often used prior to liquid penetrants

testing which of the following material should NOT be subjected to abrasive tumbling prior to liquid

A. Ti

B. Cast iron

C. Inconel

D. Cast steel

5. Which penetrant technique is generally best suited for parts with rough surface conditions?

A. water washable

B. post emulsifier

C. visible dye solvent removable

D. all are about equal

6. A disadvantage of water-washable fluorescent penetrant is

A. It is not good on rough surfaces

B. a easily washed with water

C. It requires a dark area with a black light unit

D. It is not for small part

7. Portable systems where the penetrant remover and developer are sprayed from spray cans

A. can be fluorescent penetrant systems

B. are always visible red dye penetrant systems

C. can be either fluorescent or visible red dye systems

D. are always fluorescent penetrant systems

8. Article CE-5000 of the code states the following which should be used in answering the following question

A. Unless otherwise specified in this subsection. The following relevant indications are unacceptable    1. Any cracks or linear indication    2. Rounded indication with dimensions greater than 3/16 inch    3. Four or more    4. Ten or more rounded indications to any 6 square inches of surface with Fie major  dimension of this area  not      be exceed 6 inchs with the area take in the most unfavorable  location to the indication being evaluated  B. Indications with major dimensions greater than 1/16 inch shall be considered relevant  Make inspection decisions for the following observed condition  Three rounded indications each 1/8 inch diameter tying in a straight line separated exactly 1/16 inch edge to edge

A. The weld is acceptable

B. Clean and retest

C. The weld is unacceptable

D. Clean grate lightly and retest

9. A specification requiring use of water soluble type developer stated that the concentration be

determined by the specific gravity of a measured portion which of the following would be

correct for a developer concentration of 1 pound per gallon using the information is one of

the table below?

Developer concentration			Density reading(22ºC)			1b per Gallon		% solids
Pounds per gallon of water			Using proper hydrometer
3.00			1.093			1/2		6.80
2.00			1.071			3/4		8.20
1.50			1.054			1		10.70
1.00			1.038			1-1/4		13.00
0.75			1.028			1-1/2		15.20
0.50			1.020			1-3/4		17.40
0.25			1.010			2		19.40
						2-1/4		21.20

A. 10.7 %

B. 1.038

C. specific gravity should not be used in determaine concentration in a water soluble type

developer after evaporation is a more accepted technique to determine concentration

D. The percent of solid remaining

10. The used of high power spot bulbs for color contrast penetrants

A. should be much UV may occur

B. may cause fatigue in inspectors

C. is acceptable provide the light is filtered

D. spreads the light out over a larger area

11. If a part is to be penetrant and magnetic particle tested

A. magnetic particle should be performed first

B. penetrant should be done first

C. it is never necessary to use both on the same part

D. it makes difference which considered

12. penetrant materials are considered

A. an inhalation hazard

B. a skin contact hazard

C. an environmental hazard

D. non-toxic

13. A linear indication running along the longitudinal axis of extruded bar stock may be the result of a

A. lap

B. shrinkage

C. stringer

D. seam

14. Among other causes in stress corrosion cracking austenitic stainless steel can result from?

A. exposure to black light in the presence of hydrocarbons

B. excess contact with aqueous developer material

C. excess hydrogen in penetrant material

D. excess chloring in penetrant material

15. Chemical water base cleaner are often used for very dirty greasy parts. If used the surface

must be thought rinsed free of any foreign residue and the parts must be

A. vapor degreased removal of all chemicals

B. heated to assure removal of all water

C. wire brushed or ground to remove any chemical films

D. wiped with a lint free cloth

16. Which of the following should be considered be have the highest inhalant toxicity effect:

A. water wash penetrants that are type3

B. Non-aqueous chlorinated solvent removers

C. Vapor degrease with trichloroethylene

D. Lipophilic emulsifier

17. Certain cast porous materials sometimes exhibit large areas of diffused penetrant bleed out

indications. If the technique and material variable are controlled the most probable cause of

this type of indication would be:

A. cracks

B. incomplete fusion

C. gross porosity

D. micro shrinkage

18. Which of the following defects can occur in metallic material during service?

A. stress corrosion cracking

B. Hot short cracking

C. forging laps

D. cold shuts

19. When using a post-emulsification penetrant which of the following in the most likely result of

an excessive emulsification time

A. The emulsifier viscosity will increase causing a decrease in emulsification activity

B. excess penetrant could remain after the wash operation

C. A loss in the ability to detect shallow discontinuities

D. AII penetrant material will be removed requiring complete re-processing

20. The capillary rise in the tube shown above could be used to depict a penetrant material that has

A. good wetting ability because the contact angle is less than 90º

B. good wetting ability because the contact angle is greater than 90º

C. poor wetting ability because the contact angle is greater than 90º

D. poor wetting ability because the contact angle is less than 90º

 

 

ANSWER :

1	2	3	4	5	6	7	8	9	10
C	C	C	A	A	C	C	A	B	B
11	12	13	14	15	16	17	18	19	20
B	D	D	D	A	C	D	A	C	A