Materials & Costing

In the context of construction materials, which of the following statements is/are CORRECT?

An electricity utility company charges ₹ 7 per kWh (kilo watt-hour). If a 40-watt desk light is left on for 10 hours each night for 180 days, what would be the cost of energy consumption? If the desk light is on for 2 mo...

Identify the FALSE statement from the following options:

Consider the statements P and Q. P: Client’s Preliminary Estimate is used for budgeting costs toward the end of planning and design phase. Q: Client’s Detailed Estimate is used for controlling costs during the execution...

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 ‘st...

In cement concrete mix design, with the increase in water-cement ratio, which one of the following statements is TRUE?

Which of the following equations is correct for the Pozzolanic reaction?

Match all the possible combinations between Column X (Cement compounds) and Column Y (Cement properties) : Column X Column Y (i) $${C_3}S$$ (P) Early age strength (ii) $${C_2}S$$ (Q) Later age strength (iii) $${C_3}A$$ (...

Consider the following statements: P. Walls of one brick thick are measured in square meters. Q. Walls of one brick thick are measured in cubic meters. R. No deduction in the brickwork quantity is made for openings in wa...

As per Indian standards for bricks, minimum acceptable compressive strength of any class of burnt clay bricks in dry state is

The compound which is largely responsible for initial setting and early strength gain of Ordinary Portland Cement is

Bull's trench kiln is used in the manufacturing of

The composition of an air-entrained concrete is given below: Water : 184 kg /m 3 Ordinary Portland Cement(OPC) : 368 kg /m 3 Sand : 606 kg /m 3 Coarse aggregate : 1155 kg /m 3 Assume the specific gravity of OPC, sand and...

Workability of concrete can be measured using slump, compaction factor and Vee bee time. Consider the following statements for workability of concrete: (i) As the slump increases, the Vebe time increases (ii) As the slum...

Consider the following statements for air-entrained concrete: (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 free...

The target mean strength f cm for concrete mix design obtained from the characteristic strength (f ck ) and standard deviation $$\sigma$$, as defined in IS:456-2000, is

Maximum possible value of compaction factor for fresh (green) concrete is

Consider the following statements: 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....

The cylinder strength of the concrete is less than the cube strength because of

Workability of concrete is influenced most by its

Grading of aggregate in a concrete mix is necessary to achieve

Setting time of cement sample is tested by

Tensile strength of cement mortar is usually found by: