Soffit level
Window sill level
Floor level
All the above
D. All the above
Dry
Earth moist
Semi-plastic
Plastic
7 days for beam soffits
14 days for bottom slabs of spans 4.6 m and more
21 days for bottom beams over 6 m spans
All the above
Elastic modulus of high tensile steel is nearly the same as that of mild steel
Elastic modulus of high tensile steel is more than that of mild steel
Carbon percentage in high carbon steel is less than that in mild steel
High tensile steel is cheaper than mild steel
30 minutes
40 minutes
60 minutes
90 minutes
Area of each aggregate pile should be large
Height of each aggregate pile should not exceed 1.50 m
Aggregate pile should be left for 24 hours before aggregates are used
All the above
100 kg/cm2
150 kg/cm2
200 kg/cm2
300 kg/cm2
0.003
0.0003
0.00003
0.03
To reduce the tensile stresses likely to be developed due to evaporation of water
To minimise the change in the dimensions of the slab
To minimise the necessary cracking
All the above
Residual does not exceed 10% when sieved through IS Sieve No. 9
Soundness varies from 5 to 10 mm
Initial setting time is not less than 30 minutes
Compressive stress after 7 days, is not less than 175 kg/cm2
Decrease in early strength
Reduction in chemical action with sulphates
Increase in shrinkage
All the above
Single size coarse aggregate is roughly 0.45
Graded coarse aggregate is roughly 0.040
Fine aggregate is roughly 0.45
All the above
Low water cement ratio
Less cement in the concrete
Proper concrete mix
All the above
Workability of concrete
Strength of concrete
Durability of concrete
All the above
Bleeding
Creeping
Segregation
Shrinkage
L-shaped wall
T-shaped wall
Counterfort type
All of the above
Higher workability indicates unexpected increase in the moisture content
Higher workability indicates deficiency of sand
If the concrete mix is dry, the slump is zero
All the above
Is maximum at neutral axis
Decreases below the neutral axis and increases above the neutral axis
Increases below the neutral axis and decreases above the neutral axis
Remains same
Only in post-tensioned beams
Only in pre-tensioned beams
In both post-tensioned and pre-tensioned beams
None of the above
Economy
Durability
Workability
All the above
Floating
Screeding
Trowelling
Finishing
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
Magnesium oxide
Iron oxide
Alumina
Lime
Increases
Decreases
Fluctuates
Remains constant
Less liable to segregation
More liable to segregation
More liable to bleeding
More liable for surface scaling in frosty weather
2
4
6
8
Roads
Retaining walls
Lining of canals
All the above
Depends upon the amount of water used in the mix
Does not depend upon the quality of cement mixed with aggregates
Does not depend upon the quantity of cement mixed with aggregates
All the above
1/5th of mean dimension
2/5th of mean dimension
3/5th of mean dimension
4/5th of mean dimension
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
2000 bags
2200 bags
2400 bags
2700 bags