FY->Module-6 : THREAD CUTTING - Practice Mode

1) How the thread are formed in thread rolling?

Grinding Casting Plastic deformation Milling

Correct Answer: Plastic deformation

2) How many number of teeth in translating gear used for cutting metric thread on British lathe?

63 30 120 100

Correct Answer: 63

3) Calculate the change gear ratio to cut a thread of 7/16" lead on a lathe with lead screw of 4 TPI?

04-Jul 07-Apr 03-Apr 03-Jul

Correct Answer: 07-Apr

4) Calculate the change gears necessary to cut a thread of 7/16" lead on a lathe with a lead screw of 4TPI?

Driver 70T, Driven 40T Driver 30T, Driven 40T Driven 70T, Driver 40T Driven 30T, Driver 40T

Correct Answer: Driver 70T, Driven 40T

5) What is the name of thread producing method by cold forging and by plastic deformation?

Thread rolling Thread milling Thread grinding Thread casting

Correct Answer: Thread rolling

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