A. more than or equal to one fourth of diameter of main bar
B. more than or equal to 5 mm
C. more than 5 mm but less than one-fourth of diameter of main bar
D. more than 5 mm and also more than one-fourth of diameter of main bar
Correct Answer: more than 5 mm and also more than one-fourth of diameter of main bar ✔
Last Updated: January 12, 2019