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A tank is excavated in a level ground to a depth of \( 8\text{ m} \) with uniform side slopes. The top of the tank at ground level is rectangular in shape of size \( 40 \times 20\text{ m} \), while the bottom is of size \( 24 \times 12\text{ m} \). Compute the volume of earthwork by the trapezoidal rule.

Which of the following statements related to properties of materials used in earth and gravel roads as per IRC:SP:77-2008 is correct?

1. The maximum liquid limit of the fines (soil) used for the wearing course of an earthen road in a seasonal wet tropic climate is \( 40% \).

2. Wet Aggregate Impact Value should not exceed \( 40 \) and \( 30 \) when used in base and surfacing, respectively.

The total cost of a new building is \( ₹1,70,000 \). What is the depreciation cost of the building after \( 20 \) years by straight line method if scrap value is \( ₹10,000 \), assuming the life of the building is \( 80 \) years?

What is the value of the maximum slenderness ratio of a tension member that is used as per IS:800-2007 for the compression flange of a beam against lateral torsional buckling?

Which of the following estimates is applicable for an additional work that is necessary for the project while in progress?

According to IS:800-2007, the thickness of flat lacing bars should NOT be less than _______ of its effective length for single lacings.

The effective length (\( l \)) of a compression steel member of actual length (\( L \)), effectively held in position and restrained against rotation at one end and restrained against rotation at the other end but not held in position, as per IS:800-2007 is:

The sleeper density is \( M + 7 \) on a broad-gauge route, where M is the length of the rail. How many sleepers are required for 1 km length of track?

(Assume the length of the rail is 13 m)

Match the symbols indicating the type of steel connection in column A with their names in column B.

Symbol of weld connection	Name of connection
1.	A. Bevel weld
2.	B. Plug weld
3.	C. Fillet weld
4.	D. Spot weld

Which of the following statements applicable to lead and lift as per IS:1200-part-1-1992 are correct?

1. Lead: Distances not exceeding 250 m should be measured in units of 50 m.

2. Lift: Lift should be measured in units of 1.5 m from the ground level.