The property of fresh concrete, in which the water in the mix tends to rise to the surface while placing and compacting, is called
segregation
bleeding
bulking
creep
Q.2.
Maximum percentage reinforcement in case of slabs is limited to
2
4
6
8
Q.3.
According to IS :minimum slenderness ratio for a short column is
less than 12
less than 18
between 18 and 24
more than 24
Q.4.
The slab is designed as one way if the ratio of long span to short span is
less than 1
between 1 and 1.5
between 1.5 and 2
greater than 2
Q.5.
High carbon content in the steel causes
decrease in tensile strength but increase in ductility
increase in tensile strength but decrease in ductility
decrease in both tensile strength and ductility
increase in both tensile strength and ductility
Q.6.
A continuous beam is deemed to be a deep beam when the ratio of effective span to overall depth (1/D) is less than
1.5
2.0
2.5
3.0
Q.7.
To determine the modulus of rupture, the size of test specimen used is
150 x150 x500 mm
100 x100 x700 mm
150 x150 x700 mm
100 x100 x500 mm
Q.8.
For a slab supported on its four edges with corners held down and loaded uniformly, the Marcus correction factor to the moments obtained by Grashoff Rankine’s theory
is always less than 1
is always greater than 1
can be more than 1
can be less than 1
Q.9.
Workability of concrete is inversely proportional to
time of transit
vater-cement ratio
the air in the mix
size of aggregate
Q.10.
The individual variation between test strength of sample should not be more than
±5% of average
± 10% of average
± 15% of average
±20% of average
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