Multiple choice general knowledge science & technology

which of the following is trapezoidal thread?

  1. a)Acme

  2. b)Square

  3. c)Butters

  4. d)All of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Acme thread has a trapezoidal profile with sides inclined at 29°, designed for power transmission and easy manufacturing. Square threads have rectangular profiles, while buttress threads are asymmetric for unidirectional loads.

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