If TPI is known, first multiply TPI by ____ to get TPF, then divide TPF by 24.
A) 10
B) 12
C) 14
D) 20

Question

Quizplus · Accepted Answer

To convert from TPI to TPF, we need to multiply TPI by the number of threads per inch in a foot which is 12. Therefore, TPF = TPI * 12. To convert TPF to threads per hour, we divide TPF by the number of hours in a day which is 24. So, threads per hour = TPF / 24. Given the options, the only one that represents the correct conversion factor from TPI to TPF is 12, making choice B the correct answer.

If TPI Is Known, First Multiply TPI by ____ to Get