General Examination

1. Which of the following is not (!) an advantage of a water washable fluorescent penetrant process?

(a) Excess penetrant is easily removed with a water wash

(b) It is well suited to testing large quantities of small parts

(c) It is readily removed from shallow discontinuities

(d) It has low cost, low processing time compared to the post emulsified penetrant process


2. The most significant advantage of the visible solvent removable penetrant process is?

(a) Its suitability for penetrant testing of article with rough surfaces

(b) Portability

(c) Its non-corrosive properties

(d) Ability to allow retest


3. The most important penetrant test processing time to control is:

(a) Penetrant dwell time

(b) Emulsifier dwell time

(c) Water rinse time

(d) Development time


4. A penetrant which contains an emulsifier is called:

(a) Solvent removable

(b) Water washable

(c) Post emulsifiable

(d) Solvent suspended


5. The chief advantage of using a water washable penetrant process is:

(a) Sensitivity

(b) Safety

(c) Water tolerance

(d) Economics


6. The human eye is most sensitive to which of the following types of light?

(a) Yellow-green

(b) Red

(c) Blue-violet

(d) Orange


7. Open, shallow discontinuities are best detected by which penetrant testing method?

(a) Solvent removable

(b) Water washable

(c) Post emulsifiable

(d) None of the above


8. An advantage of the post emulsifiable penetrant testing process is that:

(a) Test pieces can be re-processed several times with little loss of sensitivity

(b) It is the most economical penetrant testing process

(c) It is highly susceptible to over washing

(d) It is not self emulsifying


9. Acceptable methods to apply emulsifier are:

(a) Dipping

(b) Flowing

(c) Spraying

(d) All of the above


10. Indications which are caused by design or construction of the test piece are called?

(a) Relevant

(b) Non-relevant

(c) False

(d) Real


11. The act of determining the cause of an indication is called

(a) Interpretation

(b) Inspection

(c) Evaluation

(d) Determination


12. The act of determining the effect of a discontinuity of the usefulness of a part is called:

(a) Interpretation

(b) Inspection

(c) Evaluation

(d) Determination

Specific Examination 

1. The most likely result of a too short dwell time of an emulsifier is:

(a) A tendency to remove the penetrant from fine discontinuities

(b) Incomplete removal of excess surface penetrant

(c) An overactive emulsifier

(d) All of the above


2. Another name for a self-emulsifying penetrant process is:

(a) Solvent removable

(b) Water washable

(c) Post emulsifiable

(d) Solvent emulsifiable


3. Which of the following is a function of an emulsifier?

(a) To draw penetrant out of a discontinuity and form a visible indication

(b) To increase the size of an indication through capillary action

(c) To provide contrasting background for viewing penetrant indications

(d) None of the above


4. When viewed under black light, developer appears:

(a) Yellow-green

(b) Blue-black

(c) White

(d) Pinkish white


5. Penetrant developers are used in which of the following forms?

(a) Water washable

(b) Water suspendable

(c) Solvent suspendable

(d) All of the above


6. Which of the following would be classed as an in-service fault?

(a) A shrinkage crack

(b) A fatigue crack

(c) A grinding crack

(d) All could be in-service faults