Test 9A - .r/ \ QM ‘/ Name: Jazz WJCMU Date: [[9 Read...

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Unformatted text preview: .r/ \ QM ‘/ Name: Jazz WJCMU Date: [[9 Read each question carefixlly, then prim the letter off/1e correct answer an the line next 10 the question. Section Ver 1 1. C1 The lathes in the MMA machine shop have which type of taper attachment? a. Telescoping b. Plain c. Offset (1. Compound 2. Q V The taper produced by a lathe taper attachment is determined by setting the guide (swivel) bar automatic cross feed tailstock off center compound rest angle 9-9579? 3. 61‘ In order to convert taper per inch to taper per foot, you should a. multiply by 12 b. subtract 12 c. add 12 d. divide by 12 4, b 2 The 60 degree taper angle machined on work supported by lathe centers is most easily machined by the (if ' "m" It a. taper attachment " "M i y b. compound rest c. taiistock setover method d. headstock setover method I L A 5. J Calculate the Taper per Foot of the workpiece with a large diameter of 1—1/8 inches, at small diameter of 3/4 inches, a taper length of 3 inches, and an overall length of 10 inches. f r a. 5/8 inch ,L/ I“ b. 1.5 inch m4 “‘3 c. 5/16 inch (1. .625 inch 6. Calculate the tail stock offset for a workpiece with a large diameter of 1-1/8 inches, at small diameter of 3/4 inches, 21 taper length of 3 inches, and an overall length of 10 inches, 21, an inch b. .625 c. 5/16 inch 7. (‘3 Tapers are usually expressed in . a. taper per foot 13. taper per inch c. degrees d. all of the above 8. Calculate the Taper per Foot of the workpiece with a large diameter of 1—5/8 inches, a 95%, small diameter of l—l/2 inches, 3. taper length of 24/2 inches, and an overall length of 12- 1/2 inches. / ' ‘ ‘ F a. ,6 inch ,‘r , q b. 5/8 inch r o ‘ c. 5/16 inch '2 ' b d. .625 inch Calculate the tail stock offset for a workpiece with a large diameter of 15/8 inches, a small diameter of 1-1/2 inches, at taper length of 2—1/2 inches, and an OVerall length of 12— 1/2 inches. a. 5/16 inch b. 3/: inch 0. 3/16 inch (1. 7/8 inch 10. C(/ To obtain a ‘/2 inch per foot taper on an 18 inch workpiece, the tail stock of the lathe must X11. J: be set over . r’ , ’1 . . . a. 3/8 inch w ( X {5) b. ‘/2 inch _,;._—~———/‘ 0. attach 1:} ‘4 £2 4 d. 7/8 inch # A hat or cap is necessary only when vertical or overhead welding above shoulder level a. True 12. Which of the following is not an advantage of using a smaller electrode for out-of— 13. $114. 15. _o‘/_ position welding? Molten metai in the weld pool is easier to control ,5: Lower voltage can be used c. Lower amperage can be used (1. A smaller weld pool is created On multiple-pass horizontal fillet welds, the lowest weld pass in a layer should be made last. a. True 1). False What method is usually used on both horizontal fillet and horizontal butt welds a. Forehand method b. Crescent shaped method c. Ke hole method -. Backhand method Pas/9% What is t e purpose of the whip motion a. Preheat the base metal b. Remove slag from the weld e. Demonstrate excellent Welding style d. Allow the weld pool to cool slightly 16. 6/) Examples of fast setting electrodes would include E6010, E 6011, & E6013. a True 1). False 17. The electrode E6027 is designed for making horizontal fillet welds. a. True b. False 18. CL A groove is melted into the base metal beside the weld in the condition called a. undercut b. cracking c. are strike d. incomplete fusion ) x/ 19. a A 20 degree work angle and a 45 degree travel angle are used for horizontal fillet welds? ' ‘ a. True ~ I When the weld toe is not fused into the base metal, what defect does this indicate? :1. Lack of penetration b. Overlap c. Porosity d. Slag inclusion er Undercut ...
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Test 9A - .r/ \ QM ‘/ Name: Jazz WJCMU Date: [[9 Read...

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