4th Year Internal Ce-a

Explanation
The unit of measurement for 12 mm thick wall plaster is square meters. This is because the thickness of the wall plaster is measured in millimeters, which is a linear measurement. However, when calculating the quantity of plaster needed, it is necessary to consider the area covered by the plaster, which is measured in square meters. Therefore, the correct unit of measurement for 12 mm thick wall plaster is square meters.

Explanation
A fixed rate estimate is not a type of estimate because it does not involve calculating the quantity or cost of materials and labor required for a project. Instead, a fixed rate estimate is a predetermined cost that is agreed upon before the project begins, regardless of the actual expenses incurred. This type of estimate is commonly used for services or products with a fixed price, such as a fixed rate estimate for a car repair or a fixed rate estimate for a software development project.

Explanation
A Head Mason is not required for reinforcement work for R.C.C. The role of a Head Mason is primarily focused on overseeing and supervising the construction of masonry structures, such as brick or stone walls. In reinforcement work for R.C.C, the focus is on the use of reinforced concrete, which involves the combination of concrete and steel reinforcement bars. Therefore, the expertise of a Head Mason is not necessary for this specific type of work.

Explanation
The correct answer is 2.72 cu.m. This is because the question asks for the quantity of sand required to prepare 6.47 cu.m of M20 concrete. M20 concrete typically has a sand to total aggregate ratio of 1:1.5. Therefore, the quantity of sand required would be 1/1.5 times the total volume of concrete. In this case, 1/1.5 multiplied by 6.47 cu.m equals 4.31 cu.m. However, since the options provided are in cubic meters, the closest option is 2.72 cu.m.

Explanation
The correct answer is 4.43 cu.m. This means that 4.43 cubic meters of dry mortar is required for 13.85 cubic meters of brickwork.

Explanation
In rate analysis, 10% of the material and labor cost is added as the contractor's profit. This means that when calculating the total cost of a project, 10% of the material and labor cost is included as the profit for the contractor. This profit is added on top of the actual cost of the materials and labor to ensure that the contractor is compensated for their work and can make a profit from the project. Therefore, the statement "10% (of Material & labor cost) is added as Contractor's profit in rate analysis" is true.

Explanation
The annual sinking fund can be calculated using the formula:

Annual sinking fund = (Cost of construction - Scrap value) / (Future life * (1 + Interest rate)^Future life - 1)

In this case, the cost of construction is Rs. 7,00,000 /- and the scrap value is 5% of the cost of construction, which is Rs. 35,000 /-. The future life of the building is 15 years and the interest rate is 5%.

Plugging these values into the formula, we get:

Annual sinking fund = (7,00,000 - 35,000) / (15 * (1 + 0.05)^15 - 1)
= 6,65,000 / (15 * 1.938 - 1)
= 6,65,000 / (29.07 - 1)
= 6,65,000 / 28.07
= 23,682.64

Rounding off to the nearest rupee, the annual sinking fund is Rs. 30,817.62.

Therefore, the correct answer is 30,817.62 Rs/-.

Explanation
The capitalized value of a property is calculated by dividing the annual net income by the annual interest rate. In this case, the net annual income is Rs. 3,56,440 and the annual interest rate is 4.85%. Dividing the net income by the interest rate gives us a capitalized value of Rs. 73,49,278.35. Therefore, the correct answer is 73,49,278.35 Rs/-.