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-Guarantee passing score -87 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: what occurs when a mechanical force is repeatedly applied to most metals at room temperature such as rolling, hammering or bending
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metals become cold worked, strain or work hardened Question 2: If dye penetrant inspection indication are not sharp and clear , the most probable cause is that the part
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Was not thoroughly washed before the developer was applied Question 3: Which heat treating process of metal produces a hard , wear resistant surface over a string tough core
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Case hardening Question 4: One characteristic of a good weld of that no oxide should be formed on the base metal at a distance from the weld of more then
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1/2 inch
Question 5: What tool can be used to measure the alignment of a rotor shaft or the plane of rotation of a disk
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Dial indicator Question 6: What material cannot be heat yearned repeatedly without harmful effects
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Clad aluminum alloy Question 7: Which of the following describe the effect of annealing steel and aluminum alloys
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Decrease in internal stress and softening of the metal
Question 8: Aircraft bolts with a cross or asterisk marked on the bold head are
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Standard steel bolts Question 9: Particular component is attached to the aircraft structure by use of an aircraft bolt and a castle tension nut combination. If the cotter pin holes does NOT align within recommend torque. The acceptable practice is to
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Change washer and try again Question 10: which heat treatment operation would be preformed when surface of the metal is changed chemically by introducing a high carbide or nitride content
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case hardening Question 11: What precision measure tool is used or measuring crank pin and main bleating journals for our of of round wear
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Micrometer caliper
Question 12: which heat treating process of metal produces a hard, wear resistant surface over a strong tough core?
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case hardening Question 13: what type of corrosion may attack the grain bound aries of aluminum alloys when the heat treatment process has been improperly accomplished
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intergranular Question 14: If it's is necessary to accurately measure the diameter of the hole approx. 1/4 in in diameter The mechanic should
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Small hole gauge and determine the size of the hole by taking a micrometer reading of the ball end of of the gauge Question 15: A mechanic had completed a bonded honeycomb repaid using the plotted compound repaid technique. What nondestructive testing method is used to determine the soundness of the repair after the repair had been cured?
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Metallic ring test
Question 16: General speaking. Bolt grip lengths should be
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Equal to the thickness of the material which is fastened together
Question 17: The pattern for inclusion is a magnetic particle buildup forming ?
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parallel lines Question 18: In the four-digit aluminum index system number 2024 the first digit indicates ?
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The major alloying element
Question 19: What method of magnetic particle inspection is used most often to inspect aircraft parts for invisible cracks and other defects
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Continuous Question 20: Which of the following methods may be suitable to use to detect cracks open to the surface in aluminum forging and casting?
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Dye penetrant , eddy current , ultra sonic and visual Question 21: Why is it considered good practice to normalize a part after welding
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To relieve internal stress developed within base metal Question 22: May be used with steels which have been that treated for stressed applications
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Residual magnetizing inspection
Question 23: Self locking nuts may be used on aircraft provided that
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The bolt or nuts is not subject to rotation Question 24: What is the main determinant of the dwell time use when conducting a dye or fluorescent penetrant inspection
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The size and shape of the discontinuities being looked for Question 25: under magnetic particle inspection, a part will be identified as having a fatigue crack under which condition
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the discontinuity is found in a highly stressed area of the part Question 26: What occurs when a mechanical forces is repeatedly applied to most metals at room temp such as rolling , hammering or bending
Answer:
The metals become cold worked , strain or work hardened