Q.1
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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