Related Questions

For concreting of heavily reinforced sections without vibration, the workability of concrete expressed as compacting factor should be
A 0.75 - 0.80
B 0.80 - 0.85
C 0.85 - 0.92
D Above 0.92
Workability of concrete is inversely proportional to
A Time of transit
B Vater-cement ratio
C The air in the mix
D Size of aggregate
In order to obtain the best workability of concrete, the preferred shape of aggregate is
A Rounded
B Elongated
C Angular
D All of the above
Workability of concrete is directly proportional to
A Aggregate cement ratio
B Time of transit
C Grading of the aggregate
D All of above
For the supply of materials for concrete, form work reinforcing and placing of concrete, removal of form work and curing of concrete, number of bar(s) required on bar chart, is
A 1
B 2
C 3
D 4
How does the strength of concrete differ with age of concrete?
A Increases
B Decreases
C No effect
D Increases, then decreases
If a is the offset of concrete bed in cms, and d is the depth of concrete bed in cms, then
A d = 0.445 a
B d = 0.557 a
C d = 0.775 a
D None of these
The maximum shear stress (q) in concrete of a reinforced cement concrete beam is
A $$\frac{{{\text{Shear force}}}}{{{\text{Lever arm}} \times {\text{Width}}}}$$
B $$\frac{{{\text{Lever arm}}}}{{{\text{Shear force}} \times {\text{Width}}}}$$
C $$\frac{{{\text{Width}}}}{{{\text{Lever arm}} \times {\text{Shear force}}}}$$
D $$\frac{{{\text{Shear force}} \times {\text{Width}}}}{{{\text{Lever arm}}}}$$
Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal
A Tensile strength
B Compressive strength
C Young's modulus
D Thermal co-efficient of expansion
Creep in concrete structure increases with:
A Increase in humidity
B Increase in water
C Decrease in temperature
D Decrease in humidity

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