Quiz 0% 545 Created on June 04, 2021Liquid Penetrant Testing Liquid Penetrant Testing Quiz-1 1 / 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 2 / 10 In the solvent removable penetrant process, excess penetrant is removed with: A solvent spray A hydrophilic scrubber A water spray Clean, lint free towels slightly moistened with solvent 3 / 10 Penetrant testing is limited by its inability to test which of the following materials: Moulded rubber Porous materials Ceramics Aluminium 4 / 10 Penetrants may be applied to the surface of part by : Spraying Pouring All of the above methods are acceptable Dipping 5 / 10 Liquid penetrant testing is based on the principle of: Absorption of X rays Polarized sound waves in a liquid Magnetic domains Capillary action 6 / 10 How is the size of a liquid penetrant indication usually related to the discontinuity itrepresents: Not related to Equal to Smaller than Larger than 7 / 10 The penetrant process best suited to use on parts with rough surfaces is: Post emulsifiable Magnetic particle Solvent removable Water washable 8 / 10 Correct developer coating thickness is indicated by: An even, snowy white appearance A slightly pinkish background A fine, misting spray A thin, translucent layer 9 / 10 Which penetrant process is best suited to detect shallow discontinuities? Fluorescent Water washable Solvent removable Post emulsifiable 10 / 10 The act of determining the cause of an indication is called Inspection Interpretation Determination Evaluation Your score is The average score is 63% LinkedIn Facebook Twitter 0% Restart quiz 0% 273 Created on June 04, 2021Liquid Penetrant Testing Liquid Penetrant Testing Quiz-2 1 / 10 For adequate test results, the black light used in fluorescent penetrant examination should provide what minimum black light intensity at the test surface? 1000 microwatts per square centimetre 800 foot candles 35 microwatts per square centimeter 100 foot candles per square centimetre 2 / 10 Which of the following penetrants contains an emulsifying agent? Fluorescent Water washable Post emulsifiable Solvent removable 3 / 10 Visible, solvent removable penetrants are most advantageous for: Inspecting parts with rough surfaces Inspecting parts at remote locations Inspecting batches of small parts Inspecting parts with porous surfaces 4 / 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 false indications Formation of relevant indications 5 / 10 Which of the following is a prerequisite for a penetrant test? Developer must be applied in a thin, even coat Any surface coatings or soils must be completely removed All traces of penetrant materials should be removed after testing is complete The test object must be non-magnetic 6 / 10 A hydrometer is used to measure: Specific gravity of water based wet developers Penetrant specific gravity Penetrant viscosity Cleaner specific gravity 7 / 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 Vapour degreasing only Detergent and water only 8 / 10 What minimum warm-up time is required for acceptable performance of a mercury Vapour arc black light? 5 minutes 10 minutes None 2 minutes 9 / 10 What type of solvent removers may be used with a solvent removable penetrant? Any organic solvent Only chlorinated hydrocarbons Any alcohol based solvents Only the cleaner recommended by the manufacturer of the penetrant 10 / 10 What is the preferred pre-cleaning process for removal of oil and grease : Vapour degreasing Steam cleaning Ultrasonic cleaning Steam cleaning with a added acid Your score is The average score is 67% LinkedIn Facebook Twitter 0% Restart quiz 0% 210 Created on June 04, 2021Liquid Penetrant Testing Liquid Penetrant Testing Quiz-3 1 / 10 The most sensitive type of developer for the detection of fine discontinuities is: Water soluble Dry Non-aqueous wet Water Suspendable 2 / 10 The time period during which penetrant remains on the surface of the test piece is called: Dwell time Fixing time Soaking time Development time 3 / 10 Which of the following is the most sensitive developer in descending order? Non-aqueous wet, water soluble, water suspendable ,dry Non-aqueous wet, dry, water soluble Water suspendable, water soluble, non-aqueous wet Dry, water soluble, water suspendable 4 / 10 In the solvent removable penetrant process, excess penetrant is removed with: A solvent spray Clean, lint free towels slightly moistened with solvent A hydrophilic scrubber A water spray 5 / 10 A developer aids penetrant bleed out because of: Capillary action Adequate removal of the excess penetrant Providing a contrasting background for visible dye indications Proper emulsifier action 6 / 10 Which of the following developers is applied before the drying operation? Dry Non-aqueous wet Water based wet None of the above 7 / 10 Water based wet developer is applied: After a drying period following removal of excess penetrant For maximum sensitivity results Immediately after removal of excess penetrant Immediately before removal of excess penetrant 8 / 10 Which of the following is a function of a developer Providing a contrasting background for visible dye indications Penetrating into discontinuities open to the surface Dissolve organic soils on the test piece surface Making the penetrant water washable 9 / 10 Excess penetrant removal is a two step process with which of the following penetrant methods? Post emulsifiable Solvent removable Water washable Liquid oxygen applications 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 Provides capillary paths to aid the bleed out process Providing a contrasting background for visible dye indications All of the above Your score is The average score is 70% LinkedIn Facebook Twitter 0% Restart quiz 0% 183 Created on July 08, 2021Liquid Penetrant Testing Magnetic Particle Testing Quiz-1 1 / 10 Which statement is true when related to magnetic lines of force ? All of the above They never cross They seek the path of least resistance They are most dense at the poles of a magnet 2 / 10 If a crack exists in a circular magnet , the attraction of magnetic particles to the crack is caused by : High reluctance at the crack Doppler effect Coercive force Leakage field 3 / 10 The permeability of a material describes the : Ease with which it can be magnetized Depth of magnetic field in the part Length of time required to demagnetize it Ability to retain the magnetic field 4 / 10 Which of the following can be magnetized ? Iron Nickel Cobalt All of the above 5 / 10 Why are magnetic particles available in different colors ? Both a and b To enhance the detection of indications Different colors are used with different magnetic flux values. For color contrast with the part surface 6 / 10 Magnetic particle is a nondestructive examination method used for : Locating near surface discontinuities Detecting material separation Both a and b Locating surface discontinuities 7 / 10 Ferromagnetic material is : Both a and b Capable of being magnetized Not capable of being magnetized Strongly attracted by a magnet 8 / 10 The unit usually used to denote flux density is the : Ampere Gauss Farad Henry 9 / 10 The retentivity of a material describes the : Length of time required to demagnetize it Depth of magnetic field in the part Ease with which it can be magnetized Ability to retain the magnetic field 10 / 10 The magnetic field is strongest when the : Magnetizing current is not flowing Magnetizing voltage is flowing Materials exhibits high coercive forces Magnetizing current is flowing Your score is The average score is 70% LinkedIn Facebook Twitter 0% Restart quiz 0% 151 Created on July 08, 2021Liquid Penetrant Testing Magnetic Particle Testing Quiz-2 1 / 10 A circular filed may be induced into a specimen by : Central conductor All of the above Direct induction (prods) Direct induction (head shot) 2 / 10 The proper number of ampere turns for a given test specimen is determined by : Its length The material Its diameter Both a and b 3 / 10 A part is adaptable to magnetic particle inspection if : The material is non ferrous The materials is an electric conductor It is attached to an electro static field The material is ferromagnetic 4 / 10 An electrical yoke produces : A longitudinal field A swinging filed Alternating fields A circular field 5 / 10 A coil around the part produces : An intermittent field A longitudinal field Either a or b depending on the type of current applied A circular field 6 / 10 Magnetic lines of force : Travel in straight lines Are randomly oriented Form a closed loop Overlay in highly ferromagnetic materials 7 / 10 In longitudinal magnetization the proper term for calculating magnetizing force is : Ampere turns Ohms Watts Amperes 8 / 10 Magnetic flux lines which are parallel to a discontinuity produce : Fuzzy indications Strong indications Weak indications No indications 9 / 10 The magnitude of the residual magnetic field in a specimen is dependent on the : Left hand rule Right hand rule L/D ratio Strength of the applied magnetic force 10 / 10 What rule describes the direction of current flow when lines of magnetic force surround a conductor? The left hand thump rule The flux rule The reluctance rule The right hand thumb rule Your score is The average score is 70% LinkedIn Facebook Twitter 0% Restart quiz
