728x90 반응형 ASNT L3 BASIC23 QUIZ) ASNT L3 BASIC 15 281. eddy current testing of a material consert? a. measure its conductivity b. detect small, near surface discontinuity c. measure its ductility d. measure its magnetic permeability 282. in angle beam ultrasonic testing of plate the defect most probably undetectable would be a. cracks which are perpendicular to the sound-wave b. inclusions which are randomly oriented c. cracks which are paralle.. 2020. 7. 9. QUIZ) ASNT L3 BASIC 14 261. which of the following is not a property of magnetic lines of force? a. they form closed loops which do not cross b. the density increases with increasing distance from the poles of a permanent magnet c. they are considered to have direction d. they seek paths of least magnets resistance of least reluctance 262. surrounding an electromagnet the magnets field is strongest a. immediately afte.. 2020. 7. 9. QUIZ) ASNT L3 BASIC 13 241. Which of the following is an advantage of fluorescent penetrants over visible dye penetrants? a. the inspection can be carryed out in a well-lighted area b. small indications are more easily seen c. can be used where contact with water is objectionable d. less sensitive to contamination of discontinuities 242. Reference standards used for eddy current testing a. must contain artificial disc.. 2020. 7. 9. QUIZ) ASNT L3 BASIC 12 221. The method that can’t thest brazed joint? a. RT b. UT c. ECT or MT d. LT 222. The method to measure young modules? a. UT b. ECT c. MT d. RT 223. Fracture mechanics analysis is an established engineering analysis process which assumes that a. all components an flaw free at the time of manufacture b. all components an time flaw as a requirements for determining warranty c. the number of flaws.. 2020. 7. 9. QUIZ) ASNT L3 BASIC 11 201. Green sand casting molds include a. sand clay and water b. sand wax and solvent c. sand refractory metals and water d. sand carbon green clay 202. Small metal supports used to support and position cores become part of a casting by fusing with the molten metal. Such devices are called a. core hangers b. chills c. chaplets d. risers 203. for checking the wear or clearance of ball in steel val.. 2020. 7. 9. QUIZ) ASNT L3 BASIC 10 181. lamella tearing in a steel weldment a. can only occur if laminations are present b. can only occur in the presence of hydrogen and martensite formation in the beat affected zone c. are cracks in the base metal due to high tensile stresses in the through-thickness direction of the plate d. occur as crater cracks in the weld bead 182. If there is insufficient weld metal to fill the weld joint.. 2020. 7. 9. QUIZ) ASNT L3 BASIC 9 161. When this flow of eddy currents very within a material the indication across the test coil will a. remain unchanged b. change as the flow of eddy currents change c. completely disappear 162. The test coil ’s magnetic field will a. not pass through carbon steels b. not pass through nonconductive coatings c. pass through nonconductive coatings 163. Certifications in accordance with SNT-TC-1A .. 2020. 7. 9. QUIZ) ASNT L3 BASIC 8 141. An excessively long emulsification time might result in a. false indications b. shallow discontinuity indications being lost c. excessive background fluorscence d. loss of indication of tight cracks 142. Water washable liquid penetrants differ from post-emulsifiable liquid penetrants in that they a. can only be used on non-ferrous parts b. have an oily base c. must be removed with a solvent.. 2020. 7. 9. QUIZ) ASNT L3 BASIC 7 121. to determine amperage for longitudinal magnetization of a steel bar divide the constant value(45,000) by the a. L/D ratio of the bar b. L/D ratio lines the number of coil turns 122. The strength of the magnetic leakage field from a discontinuity is affected by the a. length of the discontinulty b. size of the contact area c. amperage used during magnetization d. depth of the discontinuity 1.. 2020. 7. 9. QUIZ) ASNT L3 BASIC 5 81. The line of force that form a path around a crack in a ring magnet are called a. magnetic lines b. leakage flux c. field strength d. longitudinal field 82. A magnetic discontinuity which is break in the magnetic uniformity of a part is related to a sudden change in a. inductance b. resistivity c. capacitance d. permeability 83. The most effective MT method for inspection of a large casting i.. 2020. 7. 8. 이전 1 2 3 다음 728x90 반응형