1
GATE CE 2005
MCQ (Single Correct Answer)
+1
-0.3
As per Indian standard code of practice for prestressed concrete $$(IS:1343-1980)$$ the minimum grades of concrete to be used for post-tensioned and pre-tensioned structural elements are respectively
A
$$M20$$ for both
B
$$M40$$ and $$M30$$
C
$$M15$$ and $$M20$$
D
$$M30$$ and $$M40$$
2
GATE CE 2005
MCQ (Single Correct Answer)
+2
-0.6
A concrete beam of rectangular cross section of $$200\,\,mm \times 400\,\,mm$$ is pre-stressed with a force $$400$$ $$kN$$ at eccentricity $$100$$ $$mm.$$ the maximum compressive stress in the concrete is
A
$$12.5\,\,N/m{m^2}$$
B
$$7.5\,\,N/m{m^2}$$
C
$$5.0\,\,N/m{m^2}$$
D
$$2.5\,\,N/m{m^2}$$
3
GATE CE 2005
MCQ (Single Correct Answer)
+1
-0.3
The flexural strength of M30 concrete as per IS: 456-2000 is
A
3.83 MPa
B
5.47 MPa
C
21.23 MPa
D
30.0 MPa
4
GATE CE 2005
MCQ (Single Correct Answer)
+1
-0.3
The partial factor of safety for concrete as per IS: 456-2000 is
A
1.50
B
1.15
C
0.87
D
0.446
EXAM MAP