Workmenship and Fundamentals · Reinforced Cement Concrete · GATE CE
Marks 1
The following figure shows the arrangement of formwork for casting a cantilever RC beam.
The correct sequence of removing the Shores/Props is:
(i) As the slump increases, the Vebe time increases
(ii) As the slum increases, the compaction factor increases
Which of the following is TRUE?(i) Air-entrainment reduces the water demand for a given level of workability
(ii) Use of air-entrained concrete is required in environments where cyclic freezing and thawing is expected.
Which of the following is TRUE?1. The compressive strength of concrete decreases with increase in water-cement ratio of the concrete mix.
2. Water is added to the concrete mix for hydration of cement and workability.
3. Creep and shrinkage of concrete are independent of the water-cement ratio in the concrete mix.
The true statements areMarks 2
The initial cost of an equipment is Rs. 1,00,000. Its salvage value at the end of accounting life of 5 years is Rs. 10,000. The difference in depreciation (in Rs.) computed using ‘double-declining balance method’ and ‘straight line method’ of depreciation in Year-2 is ___________ (in positive integer).
Water : 184 kg /m3
Ordinary Portland Cement(OPC) : 368 kg /m3
Sand : 606 kg /m3
Coarse aggregate : 1155 kg /m3
Assume the specific gravity of OPC, sand and coarse aggregate to be 3.14, 2.67 and 2.74, respectively. The air content is_________ liters/m3I. Modulus of elasticity concrete increases with increase in compressive strength of concrete.
II. Brittleness of concrete increases with decrease in compressive strength of concrete.
III. Shear strength of concrete increases with increase in compressive strength of concrete.
The TRUE statements are