1. 120kg/cm2
2. 160 kg/cm2
3. 220 kg/cm2
4. 280 kg/cm2
220 kg/cm2
1. Rich concrete
2. Controlled concrete
3. Lean concrete
4. Ordinary concrete
Ordinary concrete
1. Fineness modulus
2. Water cement ratio
3. Slump
4. All of these
All of these
1. 30 minutes
2. 60minutes
3. 90 minutes
4. 120mm
30 minutes
1. 1⁄2 m
2. 1m
3. 1.5m
4. 2m
1m
1. Curing
2. Wetting
3. Compaction
4. All of these
Compaction
1. Prevent the loss of water by evaporation.
2. Reduce the shrinkage of concrete
3. Preserve the properties of concrete
4. All of these
All of these
1. 30%
2. 40%
3. 50%
4. 60%
50\%
1. Deformed bars
2. Cold twisted bars
3. Mild steel and medium tensile steel bars
4. All of these
All of these
1. Compressive zone
2. Tensile zone
3. Neutral zone
4. All the above
Tensile zone