728x90 반응형 NDT quiz24 QUIZ) ASNT L3 BASIC 2 21. Weld spatter is caused by (spatter -> undercut) a. arc blow, excessive current, wet electrodes b. arc blow, excessive current, alternating current c. low-hydrogen filler, reduced travel speed d. low magnetic retention excessive current, wet electrodes 22. In the making of seamless or electric resistance welded (ERW) pipe or tubing the discontinuities are oriented a. transverse to the pipe or.. 2020. 7. 23. QUIZ) ASNT L3 BASIC 1 01. The term "non-relevant" is used to describe types of indications. Which of the following signal sources would often fall into this category during a penetrant examination? a. indications due to part geometry of part design configurations b. nonmagnetic indications that appear as circular patterns c. multiple indications that form in small pockets on the open surface d. non-linear indications.. 2020. 7. 21. QUIZ) ASNT L3 BASIC 24 461. Nondestructive test methods may be further subdivide into disciplines or techniques to meet specific employer needs. These certifications are consider_____________ a. provisional certifications b. limited certifications c. not allowed under SNT-TC-1A d. for information only 462. One way to calibrate an ultrasonic system is to adjust the sensitivity of the response from a series of flat bott.. 2020. 7. 9. QUIZ) ASNT L3 BASIC 23 441. according to ASNT SNT-TC-1A who shall be responsible for the administration and grading of exam for level I, II or other level III personnel? a. The employer b. an NDT level III c. the outside agency level III d. the regional ASNT level III 442. Credit for work experience in ECT must be at least ______ of the minimum NDT work experience required for level I or II qualification a. 10 % b. 50.. 2020. 7. 9. QUIZ) ASNT L3 BASIC 22 421. an NDT personnel qualification and certification written practice in accordance with SNT-TC-1A, must describe the a. background and title of the designated certifying agent of the employer b. procedures that are used in evaluating materials and component in accordance with specific code standard and specification c. responsibility of each level of certification for determining the acceptabi.. 2020. 7. 9. QUIZ) ASNT L3 BASIC 21 401. electrical discharge machining is useful in nondestructive testing because it can prodece a. fine surface finishes b. small hole’s and notches c. sharp reductions in cross section area d. natural flows for precision calibration blocks 402. an industrial fiber-optic borescope will have which of the following component? a. rigid tubes joining the lenses in the system b. copper wires to transm.. 2020. 7. 9. QUIZ) ASNT L3 BASIC 20 381. the welds of a very large comples container must be leak tested both sides of the welded joint are accessible the container will operate at pressures as high as 15 psig and must not leak which leak testing technique would be the most economical test that is sufficiently sensitive to assure the container will not leak? a. through wall penetrant technique b. bubble vacuum box technique c. pre.. 2020. 7. 9. QUIZ) ASNT L3 BASIC 19 361. an inherent defect that are thin flat discontinuity found in plate or strip and are a result of gas inclusion or pipe in the original ingot is a. inclusion b. pipes c. dross d. lamination 362. the highest sensitivity of a hail generator is obtained when the direction of the magnetic field in relation to the largest surface of the hall probe is a. parallel b. at an angle of 45 degrees c. at .. 2020. 7. 9. QUIZ) ASNT L3 BASIC 18 341. Eddy current testing of a material cannot a. measure to conductivity b. detect small near-surface discontinuities c. measure its ductility d. measure its magnetic permeability 342. which of the following properties of Al alloys is most affected by the presence of geometric stress riser? a. ductility b. corrosion resistance c. conductivity d. endurance limits 343. which of the following weld.. 2020. 7. 9. QUIZ) ASNT L3 BASIC 17 321. in a direct current magnetic particle test of a 1" thick carbon steel weld using prods 5" part what minimum current will be needed? a. 50 ampere b. 150 ampere c. 350 ampere d. 500 ampere 322. the general method of producing X-rays involves the sudden deceleration of high velocity electrons in a solid body called a a. focus cup b. target c. filament d. cathode 323. the penetrating ability of.. 2020. 7. 9. 이전 1 2 3 다음 728x90 반응형