A.2
B.5
C.no limit
D.3
Explanation: The correct answer is 3.
Submitted by: Academy of Pakistan
Civil Engineering MCQs: 3,057 practice questions with answer choices and available explanations. Page 58 of 204.
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Submitted by: Academy of Pakistan
Submitted by: Academy of Pakistan
Submitted by: Academy of Pakistan
Submitted by: Academy of Pakistan
Submitted by: Academy of Pakistan
Submitted by: Academy of Pakistan
Submitted by: Academy of Pakistan
Submitted by: Academy of Pakistan
Submitted by: Academy of Pakistan
Submitted by: Academy of Pakistan
Submitted by: Academy of Pakistan
Submitted by: Academy of Pakistan
Submitted by: Academy of Pakistan
Submitted by: Academy of Pakistan
Submitted by: Academy of Pakistan