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الامتحان ينتهي بعد ساعتين

الامتحان ينتهي بعد ساعتين


PT Exam

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1) While performing a fluorescent water washable penetrant test, which of the following
steps should be performed under black light?

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2) A water tolerance test would be performed on:

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3) Why is it important to view the test piece shortly after developer application and
periodically through the development time?

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4) Hydrophilic emulsifiers may be applied by:

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5) What additional surface preparation or cleaning must be performed on a machined or
ground aluminium casting prior to penetrant testing?

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6) What is the proper technique for removal of excess penetrant from a part when using a
water washable penetrant process?

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7) The color of fluorescent penetrant under the presence of a UV light is:

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8) Which of the following will produce higher sensitivity of a penetrant test?

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9) The limitation of a liquid penetrant test is:

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10) Which of the following is not an advantage of a water washable fluorescent penetrant process?

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11) Surface breaking porosity will show what type of relevant indications when a welded
aluminium plate is tested with the liquid penetrant method:

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12) Which of the following is a reason to post clean a part after a liquid penetrant test:

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13) Dry developer is applied:

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14) The most significant advantage of the visible solvent removable penetrant process is?

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15) The diffusion mechanism is used in the operation of:

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16) When a small diameter tube is placed in a glass of water, water rises in the tube to a
level above the adjacent surface. This is called:

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17) Which type of developer would you use to obtain the highest sensitivity test results?

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18) A developer aids penetrant bleed out because of:

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19) A penetrant process in which excess penetrant is removed with an organic solvent is called:

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20) What minimum warm-up time is required for acceptable performance of a black light?

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21) Actual emulsification times are determined by:

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22) What type of solvent removers may be used with a solvent removable penetrant?

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23) Why might steel parts have a greater tendency towards rusting after penetrant testing?

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24) How is the size of a liquid penetrant indication usually related to the discontinuity it
represents:

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25) The principle on which liquid penetrant testing is based on is:

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26) The purpose of using a developer is:

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27) The penetrant process best suited for use on parts with keyways and threads is:

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28) Liquid penetrant testing is based on the principle of:

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29) When viewed under black light, developer appears:

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30) A penetrant process which employs an emulsifier as a separate step in the penetrant
removal process is called:

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31) The typical temperature ranges for conducting a liquid penetrant test is:

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32) Dual purpose penetrants are viewed under what type of light?

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33) Water based wet developer is applied:

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34) Which of the following penetrants contains an emulsifying agent?

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35) The preferred method of application of aqueous wet developer is:

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36) The adequacy of excess penetrant removal, using water washable penetrant process, is
judged and controlled by:

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37) What amount of time is normally considered necessary for dark adaption of the eyes
prior to performing a fluorescent penetrant test?

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38) Penetrant testing is limited by its inability to test which of the following materials:

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39) The causes of non relevant indications are:

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40) It is well recognized that machining, honing, lapping and hand sanding will result:

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41) What is the likely result of incomplete removal of all excess penetrant from the test
piece surface?

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42) A penetrant that is self-emulsifying is called:

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43) The human eye is most sensitive to which of the following types of light?

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44) An oil based emulsifier is called:

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45) The chief advantage of using a water washable penetrant process is:

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46) The tendency of a liquid to be drawn into small discontinuities is called:

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47) Dried, non-aqueous developers are best removed after penetrant testing by:

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48) The time period during which penetrant remains on the surface of the test piece is
called:

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49) Which of the following is an advantage of a dry developer?

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50) Which of the following is a function of an emulsifier?

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