Test 10A - {570%- Name : AVNAWJ’) Mb’éé: Section Ver...

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Unformatted text preview: {570%- Name : AVNAWJ’) Mb’éé: Section Ver 1 Read each question carefully, then print the letter aft/1e correct answer on the line new 10 the question L/P follower rest usually has jaws to back up the workpiece. A at 2 b. 3 c. 1 d. 4 2. #4 A steady rest usualiy has a 3 jaws to support the workpiece. b. 2 c. l d. 4 Lu A For proper suppon when turning a long thin piece ofwork between centers, you should use a . at steady rest b. faceplate c. draw—in collet d. compound rest 4. b The lathe steady rest is normally used for supporting one end of a a. short heavy casting held in a three jaw chuck b. long workpiece for facing, drilling) and boring c. short workpiece being machined to an internal taper d. tubular workpiece being parted between centers 5, k When setting up a center rest, which jaws are adjusted first? a. Top b. Bottom c, Closest to chuck d. Closest to tailstock 6. a When a long slender shaft needs to be turned or threaded for its entire length which lathe attachment could you use? a. Telescoping taper attachment b. Follower rest c, Plain taper attachment d. Steady rest 7‘ 6/ When there is no center hole in the finished end of a shaft of the same diameter, setup of a steady rest would include using the following to find a center. a. The tailstock dead center 1), A combination square center head c. A cat head Cl. Both a and b /O 8. #i A cat head is used in conjunction with a a. Steady rest b. Follower rest 0, Tailstock ti. Taper attachment 9. fl A basket weave pattern allows sticky material like dirt and mud to also protect the metal from further abrasion. a. True b. False 10. flr Which of the following is not used to apply surfacing materials? a. Soldering b, Thermal spraying c. Welding d. Brazing / /L l. A steady rest can be correctly set up using a dial indicator on the rotating shaft to check ' for run out. a. True / Y 12. # The higher the number on the Rockwell C scale indicates a softer material. a True 13, b Surfacing with SMAW is similar to welding with SMAW except a shorter arc length is used a. True b. False 14‘ % What problem is i indicated by an eating away of a metal surface? a. Abrasion bi Metal transfer wear 0. Fatigue d. Chemical corrosion 15. / Which of the following is not an essential step in the surfacing process? a. Clean metal surface b. Choose desired process 0. Preheating d. Cooling method ‘ _." 6. b What current is used when surfacing with SMAW? a. Ac 9 ,‘r 9 b. DCEN s 0 -'I' as ' C k \ rem] 17. A Hot hardness is the ability of a metal to maintain its strength at high temperatures. a. True b. False /18. Q When surfacing with SMAW, a higher electrode current is usually used than when >\, - I ' 1 for the same diameter electrode. b. False 19. Q A surfacing head should be 1/ 16”- W’ high. a. True b. False 20. Q What problem is caused by repeated bending, stretching 0r compressing? Abrasion Fatigue Chemical corrosion Metal transfer Wear F157??? ...
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This note was uploaded on 05/01/2008 for the course MENG 101 taught by Professor Mahoney during the Spring '08 term at Mass Maritime.

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Test 10A - {570%- Name : AVNAWJ’) Mb’éé: Section Ver...

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