A highly absorptive aggregate reduces the workability of concrete considerably
The specific gravity of aggregate is important for the determination of the moisture content
The absorption and porosity of an aggregate influence the property of the concrete
All the above
D. All the above
10 cm, 20 cm, 30 cm
10 cm, 30 cm, 20 cm
20 cm, 10 cm, 30 cm
20 cm, 30 cm, 10 cm
Between 150 to 300 kg/cm2
Between 350 to 600 kg/cm2
Between 150 to 500 kg/cm2
Below 200 kg/cm2
2.0 to 3.5
3.5 to 5.0
5.0 to 7.0
6.0 to 8.5
150 × 150 × 500 mm
100 × 100 × 700 mm
150 × 150 × 700 mm
100 × 100 × 500 mm
Less than 1
Between 1 and 1.5
Between 1.5 and 2
Greater than 2
Affects only the early development of strength
Affects only the ultimate strength
Both (A) and (B)
Does not affect the strength
Workability
Strength
The effects of temperature variations
The unit weight
Clay
Sand
Gravel
None of these
Both A and R is true and R is the correct explanation of A
Both A and R is true but R is not the correct explanation of A
A is true but R is false
A is false but R is true
Segregation
Bleeding
Bulking
Creep
Cement should be mixed for at least one minute
10% of water is placed in the rotating drum before adding dry material
10% of water is added after placing the other ingredients in the drum
All the above
0.207 l
0.293 l
0.707 l
0.793 l From the driving end of pile which rests on the ground
Bulking of sand is caused due to formation of a thin film of surface moisture
Fine sand bulks more than coarse sand
The volume of fully saturated sand, is equal to the volume of dry and loose sand
All the above
Crushing strength
Impact value
Abrasion resistance
Water absorption
Zero
Tensile
Compressive
Tensile or compressive
0.003
0.0003
0.00003
0.03
The concrete gains strength due to hydration of cement
The concrete does not set at freezing point
The strength of concrete increases with its age
All the above
Lime stone
Chalk
Laterite
None of these
The least lateral dimension of the member
Sixteen times the smallest diameter of longitudinal reinforcement bar to be tied
Forty-eight times the diameter of transverse reinforcement
Lesser of the above three values
7.30
7.35
7.40
7.45
Reduction in permeability
Loss of heat of hydration
Reduction in bleeding
All the above
1 : 3 : 6 mix
1 : 1 :2 mix
1 : 2 : 4 mix
1 : 1.5 : 3 mix
Voids in coarse aggregates are filled by fine aggregates
Voids in fine aggregates are filled by the cement paste
Volume of fine aggregates is equal to total voids in coarse aggregates plus 10% extra
All the above
1 : 3 : 6 mix
1 : 1 : 2 mix
1 : 2 : 4 mix
1 : 1.5 : 3 mix
Alumina
Iron oxide
Silica
Alkalis
Shape
Grading
Compaction
All the above
M 100
M 200
M 300
M 500
0.33
0.5
0.75
1.0
Sand stones may be divided into calcareous, siliceous and ferruginous sand stones
Concrete using sand stones, cracks due to excessive shrinkage
Broken bricks produce a concrete having good fire resisting qualities
All the above
At the middle of the wall
At the edge of the wall
Halfway between the middle and edge of the wall
At a distance equal to effective depth of footing from the edge of the wall