Q
Cube strength of controlled concrete to be used for pretensioned and post-tensioned work respectively should not be less than__________________?
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A
A. 35 mpa and 42 mpa
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B
B. 42 mpa and 35 mpa
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C
C. 42 mpa and 53 mpa
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D
D. 53 mpa and 42 mpa
Correct Answer:
B. B. 42 mpa and 35 mpa
