1
GATE CE 2014 Set 2
Numerical
+1
-0
The flexural tensile strength of M25 grade of concrete, in N/mm2, as per IS:456-2000 is __________.
Your input ____
2
GATE CE 2014 Set 2
MCQ (Single Correct Answer)
+1
-0.3
The target mean strength fcm for concrete mix design obtained from the characteristic strength (fck) and standard deviation $$\sigma$$, as defined in IS:456-2000, is
A
$${\mathrm f}_\mathrm{ck}\;+\;1.35\mathrm\sigma$$
B
$${\mathrm f}_\mathrm{ck}\;+\;1.45\mathrm\sigma$$
C
$${\mathrm f}_\mathrm{ck}\;+\;1.55\mathrm\sigma$$
D
$${\mathrm f}_\mathrm{ck}\;+\;1.65\mathrm\sigma$$
3
GATE CE 2014 Set 2
MCQ (Single Correct Answer)
+1
-0.3
The modulus of elasticity, E = 5000$$\sqrt{{\mathrm f}_\mathrm{ck}}$$ where fck is the characteristic compressive strength of concrete, specified in IS:456-2000 is based on
A
Tangent modulus
B
Initial tangent modulus
C
Secant modulus
D
Chord modulus
4
GATE CE 2013
MCQ (Single Correct Answer)
+1
-0.3
Maximum possible value of compaction factor for fresh (green) concrete is
A
0.5
B
1.0
C
1.5
D
2.0
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