The length of the straight portion of a bar beyond the end of the hook, should be at least

The length of the straight portion of a bar beyond the end of the hook, should be at least

(A) Twice the diameter

(B) Thrice the diameter

(C) Four times the diameter

(D) Seven times the diameter

The correct Answer Is
(D) Seven times the diameter
 
The length of the straight portion of a bar beyond the end of the hook, should be at least

(A) Twice the diameter

(B) Thrice the diameter

(C) Four times the diameter

(D) Seven times the diameter


C
 
The length of the straight portion of a bar beyond the end of the hook, should be at least

(A) Twice the diameter

(B) Thrice the diameter

(C) Four times the diameter

(D) Seven times the diameter

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(a)