Thread Geometry: Pitch, Starts, Lead and Revolutions

Thread Geometry: Pitch, Starts, Lead and Revolutions

Original quantitative learning practice in English. All 24 questions are included. Four supplied cases exercise six related calculation targets; they form one topic, not four separate tests. Every question includes the complete initial data. Use the stated model and retain intermediate precision. Choose one answer. Learning target: 20/24, not an official pass mark. This bank covers the calculation topic in its title; it is not a complete professional examination, design approval or operating instruction.
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An ideal screw has pitch 3 mm and 5 starts. Lead equals pitch times starts. It turns 11 revolutions without backlash. A separate requested travel is 120 mm. For unit conversion use exactly 25.4 mm per inch. This is geometry, not a machining specification. Calculate the revolutions for the separate requested travel. Keep intermediate values unrounded; round the final result to four decimal places if necessary.