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

1) Calculate the width of flat of buttress thread 6 mm pitch?

0.75 mm 1 mm 1.5 mm 2 mm

Correct Answer: 0.75 mm

2) What is the relationship between pitch and depth of a buttress thread?

depth = 0.5 x pitch depth = 0.6134 x pitch depth = 0.6403 x pitch depth = 0.75 x pitch

Correct Answer: depth = 0.75 x pitch

3) What is calculated by formula 0.75 x pitch?

depth of square thread depth of metric thread depth of acme thread depth of buttress thread

Correct Answer: depth of buttress thread

4) Which device uses buttress thread?

Screw jack Lead screw of lathe Carpentry vice General purpose nut and bolt

Correct Answer: Carpentry vice

5) Calculate the depth of buttress thread diameter 30 mm of pitch 3mm?

1.25 mm 1.5 mm 2.25 mm 3.00 mm

Correct Answer: 2.25 mm

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