1
GATE CE 2000
MCQ (Single Correct Answer)
+2
-0.6
Assume straight line instead of parabola for stress-strain curve of concrete as given below and partial factor of safety as $$1.0.$$ GATE CE 2000 Reinforced Cement Concrete - Singly Reinforced Sections Question 1 English

A rectangular under-reinforced concrete section of $$300$$ $$mm$$ width and $$500$$ $$mm$$ effective depth is reinforced with $$3$$ bars of grade $$Fe$$-$$415,$$ each of $$16$$ $$mm$$ diameter. Concrete mix is $$M20.$$

The depth of the neutral axis obtained as per $$IS:$$ $$456$$-$$2000$$ differs from the depth of neutral axis obtained in $$Q.08$$ by

A
$$15$$ $$mm$$
B
$$20$$ $$mm$$
C
$$25$$ $$mm$$
D
$$32$$ $$mm$$
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