A. b – rd)²/(r – s)
B. b – rd)²/(r + s)
C. ½ × (b + rd)²/(r – s)
D. b – rd)²/(s – r)
Related Mcqs:
- The reduced levels of points, 30 metres apart along the longitudinal section of a road portion between chainages 5 and 9 are shown in the given figure. If there is a uniform up-gradient of the road 120 in 1, the chainage of the point with no filling or cutting is__________________?
A. (6 + 15) chains
B. (6 + 12) chains
C. (6 + 18) chains
D. None of these - The area of the cross-section of a road fully in banking shown in the given figure, is________________?
A. [sb² + r² (2bd + sd)²]/(r² – s²)
B. [sb² + r² (2bd + sd)²]/(r² – s5)
C. [sb² + r² (2bd + sd)²]/(r – s)
D. None of these - A cement concrete road is 1000 m long, 8 m wide and 15 cm thick over the sub-base of 10 cm thick gravel. The box cutting in road crust is__________________?
A. 500 m3
B. 1000 m 3
C. 1500 m3
D. 2000 m3 - The cost of the earthwork in excavation for the surface drain of cross-section shown in the given figure for a total length of 5 metres @ Rs. 450% cum, is_______________?
A. Rs. 400
B. Rs. 425
C. Rs. 450
D. Rs. 500 - Referring of given figure, pick up the correct statement from the following?
A. The total length of centre line of four walls is 20 m
B. Length of long wall out-to -out is 6.80 m
C. Length of short walls in-to-in is 3.20 m
D. All the above - If B is the width of formation, d is the height of the embankment, side slope S : 1, for a highway with no transverse slope, the area of cross-section is___________________?
A. B + d + Sd
B. Bd + Sd2
C. B × d – Sd1/2
D. ½ (Bd + Sd2) - A portion of an embankment having a uniform up-gradient 1 in 500 is circular with radius 1000 m of the centre line. It subtends 180° at the centre. If the height of the bank is 1 m at the lower end, and side slopes 2:1, the earth work involved ?
A. 26,000 m3
B. 26,500 m3
C. 27,000 m3
D. 27,500 m3 - The cross -sections for a highway is taken at_________________?
A. Right angle to the centre line
B. 30 metres apart
C. Intermediate points having abrupt change in gradient
D. All the above - In the mid-section formula__________________?
A. The mean depth is the average of depths of two consecutive sections
B. The area of mid-sections is calculated by using mean depth
C. The volume of the earth work is calculated by multiplying the mid-section area by the distance between the two original sections
D. All of the above - Pick up the correct statement from the following?
A. The earth work of cutting in trenches or borrow pits in fairly uniform ground is measured with the help of average depths of the dead men
B. The earth work in trenches or borrow pits in irregular ground is measured by taking the difference in levels before and after completion of work
C. The earth work in trenches or borrow pits, where neither a nor b is feasible, are measured from the fillings after deduction of voids
D. All the above
