____ threads are the original British standard thread forms developed in 1841.
A) Whitworth threads
B) Acme threads
C) JKS threads
D) Dardelet threads
E) none of the above

Question

Quizplus · Accepted Answer

Whitworth threads were developed in 1841 by Sir Joseph Whitworth as the first standardized thread form in the world. It was initially used in railway engineering and later adopted in mechanical engineering as the British standard thread. Acme threads were developed later in the US, while JKS and Dardelet threads are not standard thread forms.

____ Threads Are the Original British Standard Thread Forms Developed