For cutting double start screw threads of pitch 1.0 mm

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For cutting double start screw threads of pitch 1.0 mm on a lathe, the thread cutting tool should have a feed rate of

1. 0.5 mm/rev
2. 1.0 mm/rev
3. 2.0 mm/rev
4. 4.0 mm/rev

Correct Option: C

Pitch = 1mm
Start = Double Start
Feed rate = 2 × 1 = 2 mm/res.