API 1104 CWI 046 with answers 100% correct

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In which of the following ways are fluxes for SAW classified when classified according to the manner in which they modify the composition of the weld metal? a. Oxidizing or reducing b. Fused or ag ... glomerated c. Granular or powdered d. Neutral, active or alloy e. Covered or self-shielded - ANSWER b. Fused or agglomerated What does the 'R' indicate in the wire ER70S-3 AWS filler metal classification? a. Rolled in a spool b. May be used as a filler rod c. Rust resistant d. Rosin core e. Reverse Polarity - ANSWER b. May be used as a filler rod Which of the following is/are false regarding good quality records? a. All records should be prepared by the welding inspector b. They record as much detail as necessary c. They include explanation of repairs d. They state how well the work stayed with prescribed tolerances. e. All of the above - ANSWER a. All records should be prepared by the welding inspector Porosity in the weld bead can result from which of the following? a. Contaminated electrodes b. Contaminated shielding gas c. Moisture pickup d. Arc voltage too high e. All of the above - ANSWER e. All of the above Overexposure to X-rays or gamma rays may cause damage to human ______________________. a. Sexual organs b. Blood tissue c. Skin d. Internal organs e. All of the above - ANSWER e. All of the above Which of the following conditions will affect the rate and extent to which a liquid penetrant will enter cracks, fissures and other small openings? a. The hardness of the specimen being tested b. The surface condition of the specimen being tested c. The color of the penetrant d. The conductivity of the specimen being tested e. The magnetic field residual in the specimen - ANSWER b. The surface condition of the specimen being tested Which of the following activities are encountered in welding inspection? a. Selection and examination of production test samples b. Verification of approved welding procedures c. Verification of personnel qualifications d. Only (b) and (c) e. Only (a), (b) and (c) - ANSWER e. Only (a), (b) and (c) a. Selection and examination of production test samples b. Verification of approved welding procedures c. Verification of personnel qualifications Destructive tests of welds are designed to ___________________. a. Determine the mechanical properties(i.e. tensile strength, ductility and toughness) b.Determine the modulus of elasticity of a weld metal c. Calculate the percentage of reduction in area for an all-weld-metal specimen d. Determine the soundness of weld metal e. All of the above - ANSWER e. All of the above In GMAW, shielding gas selection will not have a pronounced effect on which of following: a. Electrode extension b. Undercutting tendency c. Mode of metal transfer d. Penetration e. Arc characteristics - ANSWER a. Electrode extension Which of the following FCAW process variation is most suitable for windy field conditions? a. Self-shielded b. Bare wire c. Metal core d. Gas-shielded e. Autogenously - ANSWER a. Self-shielded Which of the following statements is correct regarding magnetic particle testing? a. It is sensitive enough to readily able to detect subsurface discontinuities b. It can be performed on all type of material, ferrous and non-ferrous c. Subsurface discontinuities are easily seen and interpreted with this method d. Subsurface discontinuities near the surface may be observed, but they may not be clearly defined e. None of the above - ANSWER d. Subsurface discontinuities near the surface may be observed, but they may not be clearly defined Which of the following is a cast iron electrode to AWS A5.15, Specification for Welding Electrodes and Rods for Cast Iron? a. ENiFe-CI-A b. EWC-30/40 c. E8018-C1 d. ECuAL-A2 e. ENi-Mo - ANSWER a. ENiFe-CI-A Which of the following is a disadvantage of some manual brazing processes in comparison to the automated ones? a. It cannot be used to join dissimilar metals b. It is limited to joining pieces of equal thickness c. It is expensive to use for joining complex assemblies d. It requires highly skilled technicians or operators to perform e. It cannot join metals to non-metallic materials - ANSWER d. It requires highly skilled technicians or operators to perform Welding test positions are typically designated with a number followed by a letter, for example, 2G. For what does the letter "G" stand for? a. A groove weld b. The gas used by the welder c. The gauge of the workpiece d. The material class being welded e. The GI code to which the weld will be judged - ANSWER a. A groove weld If a welding inspector feels he or she is not qualified to make judgment as to the acceptability of a weldment, what should he or she do? a. Do the best he or she can and report accordingly b. Call for assistance from someone who is qualified c. Wait to make judgment until he or she has had time to get additional training d. Stop all work until procedures are developed within the inspectors qualifications e. Allow work to continue because further welder experience will improve quality - ANSWER b. Call for assistance from someone who is qualified An SMAW covered electrode holder is sized or rated according to which of the following? a. The welders hand size b. The power polarity c. The metal thickness d. The maximum current e. The electrode size - ANSWER d. The maximum current Which of the following is needed to obtain maximum detection capability in the inspection of welds by MT? a. Use a longitudal magnetic field b. Use a circular magnetic field c. Apply the magnetic field parallel to the weld d. Apply the magnetic field perpendicular to the weld e. Apply the magnetic field in two directions 90° apart - ANSWER e. Apply the magnetic field in two directions 90° apart Manufacturers recommend that E7018 electrodes to be used with "a short arc" welding technique. This technique helps to do what? a. Speed the metal transfer across the arc b. Maintain good shielding of the molten weld pool c. Weld thin sheet metal d. Prevent root pass "whipping" burn through e. Help the GMAW process weld sheet metal - ANSWER b. Maintain good shielding of the molten weld pool The carbon equivalent unit is employed to predict the tendency to form which of the following? a. Martensite b. Austenite c. Acicular ferrite d. Lamellar pearlite e. Upper bainite - ANSWER a. Martensite In some instances, choosing a welding process other than SMAW is the best economic decision. Which of the following situations would cause you to consider other welding processes? a. The need for additional weld [Show More]

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