FY->Module-7 : OTHER FORMS OF THREAD - Practice Mode

1) What is the depth of square thread 60 x 5 mm pitch?

5 mm 2.5 mm 3 mm 4 mm

Correct Answer: 2.5 mm

2) What is the core dia of square thread 75 x 11 mm pitch?

70 mm 60 mm 64 mm 65.8 mm

Correct Answer: 64 mm

3) What is the reason for using ACME thread in lathe lead screw?

Easily available Manufacturing cost is less Enable easy engagement Suitable for big diameter thread

Correct Answer: Enable easy engagement

4) What will happen if threading tool is set below centre height?

Pitch will changed Difficult for catching Thread will be damaged Major diameter will changed

Correct Answer: Thread will be damaged

5) What is the reason for providing buttress thread in carpentry vice?

For better appearance For easy use For easy manufacturing Pressure acts at one flank

Correct Answer: Pressure acts at one flank

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