Quiz 0% 108 Created on June 04, 2021Liquid Penetrant Testing Liquid Penetrant Testing Quiz-1 1 / 10 Penetrants may be applied to the surface of part by : Spraying Pouring All of the above methods are acceptable Dipping 2 / 10 Penetrant testing is limited by its inability to test which of the following materials: Porous materials Ceramics Aluminium Moulded rubber 3 / 10 The penetrant process best suited to use on parts with rough surfaces is: Water washable Post emulsifiable Magnetic particle Solvent removable 4 / 10 Correct developer coating thickness is indicated by: A slightly pinkish background A thin, translucent layer A fine, misting spray An even, snowy white appearance 5 / 10 How is the size of a liquid penetrant indication usually related to the discontinuity itrepresents: Not related to Equal to Larger than Smaller than 6 / 10 Which penetrant process is best suited to detect shallow discontinuities? Fluorescent Water washable Solvent removable Post emulsifiable 7 / 10 The act of determining the cause of an indication is called Evaluation Inspection Interpretation Determination 8 / 10 Liquid penetrant testing is based on the principle of: Magnetic domains Polarized sound waves in a liquid Absorption of X rays Capillary action 9 / 10 In the solvent removable penetrant process, excess penetrant is removed with: Clean, lint free towels slightly moistened with solvent A water spray A hydrophilic scrubber A solvent spray 10 / 10 The time period during which penetrant remains on the surface of the test piece is called: Soaking time Fixing time Development time Dwell time Your score is The average score is 55% LinkedIn Facebook Twitter 0% Restart quiz 0% 46 Created on June 04, 2021Liquid Penetrant Testing Liquid Penetrant Testing Quiz-2 1 / 10 What is the likely result of incomplete removal of all excess penetrant from the test piece surface? Exaggeration of the size of relevant indications None of the above Formation of relevant indications Formation of false indications 2 / 10 What type of solvent removers may be used with a solvent removable penetrant? Only chlorinated hydrocarbons Only the cleaner recommended by the manufacturer of the penetrant Any alcohol based solvents Any organic solvent 3 / 10 What is the preferred pre-cleaning process for removal of oil and grease : Steam cleaning Steam cleaning with a added acid Vapour degreasing Ultrasonic cleaning 4 / 10 What minimum warm-up time is required for acceptable performance of a mercury Vapour arc black light? 10 minutes 2 minutes None 5 minutes 5 / 10 Which of the following penetrants contains an emulsifying agent? Post emulsifiable Water washable Fluorescent Solvent removable 6 / 10 Which of the following types of pre-cleaning processes may be used for liquid penetrant testing? Any process that leaves the part clean and dry, does not harm the part and is compatible with the penetrant materials Wire brushing only Detergent and water only Vapour degreasing only 7 / 10 A hydrometer is used to measure: Penetrant viscosity Penetrant specific gravity Cleaner specific gravity Specific gravity of water based wet developers 8 / 10 For adequate test results, the black light used in fluorescent penetrant examination should provide what minimum black light intensity at the test surface? 800 foot candles 100 foot candles per square centimetre 1000 microwatts per square centimetre 35 microwatts per square centimeter 9 / 10 Which of the following is a prerequisite for a penetrant test? All traces of penetrant materials should be removed after testing is complete The test object must be non-magnetic Any surface coatings or soils must be completely removed Developer must be applied in a thin, even coat 10 / 10 Visible, solvent removable penetrants are most advantageous for: Inspecting batches of small parts Inspecting parts at remote locations Inspecting parts with rough surfaces Inspecting parts with porous surfaces Your score is The average score is 58% LinkedIn Facebook Twitter 0% Restart quiz 0% 34 Created on June 04, 2021Liquid Penetrant Testing Liquid Penetrant Testing Quiz-3 1 / 10 Water based wet developer is applied: Immediately before removal of excess penetrant Immediately after removal of excess penetrant For maximum sensitivity results After a drying period following removal of excess penetrant 2 / 10 Which of the following is the most sensitive developer in descending order? Non-aqueous wet, water soluble, water suspendable ,dry Dry, water soluble, water suspendable Non-aqueous wet, dry, water soluble Water suspendable, water soluble, non-aqueous wet 3 / 10 In the solvent removable penetrant process, excess penetrant is removed with: A hydrophilic scrubber A solvent spray A water spray Clean, lint free towels slightly moistened with solvent 4 / 10 Excess penetrant removal is a two step process with which of the following penetrant methods? Solvent removable Post emulsifiable Water washable Liquid oxygen applications 5 / 10 A developer aids penetrant bleed out because of: Proper emulsifier action Adequate removal of the excess penetrant Capillary action Providing a contrasting background for visible dye indications 6 / 10 The time period during which penetrant remains on the surface of the test piece is called: Dwell time Development time Soaking time Fixing time 7 / 10 Which of the following is a function of a developer Making the penetrant water washable Dissolve organic soils on the test piece surface Penetrating into discontinuities open to the surface Providing a contrasting background for visible dye indications 8 / 10 The most sensitive type of developer for the detection of fine discontinuities is: Non-aqueous wet Water Suspendable Water soluble Dry 9 / 10 Which of the following developers is applied before the drying operation? None of the above Non-aqueous wet Dry Water based wet 10 / 10 Which of the following is a function of a developer? Accentuates presence of discontinuities by causing a penetrant indication to spread out over a larger area Providing a contrasting background for visible dye indications Provides capillary paths to aid the bleed out process All of the above Your score is The average score is 65% LinkedIn Facebook Twitter 0% Restart quiz 0% 31 Created on July 08, 2021Liquid Penetrant Testing Magnetic Particle Testing Quiz-1 1 / 10 If a crack exists in a circular magnet , the attraction of magnetic particles to the crack is caused by : Leakage field Coercive force High reluctance at the crack Doppler effect 2 / 10 The permeability of a material describes the : Depth of magnetic field in the part Ability to retain the magnetic field Ease with which it can be magnetized Length of time required to demagnetize it 3 / 10 The magnetic field is strongest when the : Magnetizing voltage is flowing Magnetizing current is flowing Materials exhibits high coercive forces Magnetizing current is not flowing 4 / 10 Which of the following can be magnetized ? Nickel Cobalt Iron All of the above 5 / 10 Why are magnetic particles available in different colors ? To enhance the detection of indications For color contrast with the part surface Both a and b Different colors are used with different magnetic flux values. 6 / 10 Ferromagnetic material is : Not capable of being magnetized Both a and b Capable of being magnetized Strongly attracted by a magnet 7 / 10 The unit usually used to denote flux density is the : Farad Gauss Ampere Henry 8 / 10 Magnetic particle is a nondestructive examination method used for : Locating near surface discontinuities Detecting material separation Locating surface discontinuities Both a and b 9 / 10 The retentivity of a material describes the : Ability to retain the magnetic field Length of time required to demagnetize it Ease with which it can be magnetized Depth of magnetic field in the part 10 / 10 Which statement is true when related to magnetic lines of force ? They are most dense at the poles of a magnet All of the above They seek the path of least resistance They never cross Your score is The average score is 69% LinkedIn Facebook Twitter 0% Restart quiz 0% 27 Created on July 08, 2021Liquid Penetrant Testing Magnetic Particle Testing Quiz-2 1 / 10 The proper number of ampere turns for a given test specimen is determined by : Its diameter The material Both a and b Its length 2 / 10 An electrical yoke produces : A circular field A swinging filed Alternating fields A longitudinal field 3 / 10 A part is adaptable to magnetic particle inspection if : It is attached to an electro static field The material is ferromagnetic The materials is an electric conductor The material is non ferrous 4 / 10 Magnetic flux lines which are parallel to a discontinuity produce : Weak indications Strong indications Fuzzy indications No indications 5 / 10 The magnitude of the residual magnetic field in a specimen is dependent on the : Strength of the applied magnetic force Left hand rule L/D ratio Right hand rule 6 / 10 What rule describes the direction of current flow when lines of magnetic force surround a conductor? The left hand thump rule The right hand thumb rule The reluctance rule The flux rule 7 / 10 A coil around the part produces : An intermittent field A longitudinal field A circular field Either a or b depending on the type of current applied 8 / 10 A circular filed may be induced into a specimen by : Direct induction (prods) Direct induction (head shot) Central conductor All of the above 9 / 10 Magnetic lines of force : Travel in straight lines Are randomly oriented Form a closed loop Overlay in highly ferromagnetic materials 10 / 10 In longitudinal magnetization the proper term for calculating magnetizing force is : Ampere turns Amperes Watts Ohms Your score is The average score is 64% LinkedIn Facebook Twitter 0% Restart quiz
