Estimating and Costing

1

Pick up the correct statement from the following:

 

A. If the bed level is above N.S.L. the canal is called fully in baking and the berms are designed as 3 d where d is full supply depth of water (F.S.D.)
B. Area of canal in cutting = BD + `Sd^2`where B = bed width, d = depth of cutting and S is the side slope
C. Area of the bank of canal =` B_1d_1 + Sd_2 `where `B_1, d_1 `and S are the width of bank, height of the bank above N.S.L. and side slope respectively
D. If F.S.L. is above N.S.L the canal is called partly in cutting and partly in filling and berms are designed as 2d where d is full supply depth
E. All the above.

2

The area of a sloping surface of a protective embankment of mean height d, side slopes S : 1 and length L is

A. d x d x s
B. `sqrt(d^2 xx (ds)^2)`
C. `L D sqrt(1 + s^2)`
D. `2L D sqrt(1 + s^2)`

3

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 x d - Sd1/2
D. `frac(1)(2)` (Bd + Sd2)

4

The correct prismoidal formula for volume is

A. D [first area + last area + `Sigma` Even area + 2 `Sigma` odd areas]
B. `frac(D)(3)` [first area + last area +4 `Sigma` Even area + 2 `Sigma` odd areas]
C. `frac(D)(3)` [first area + last area +2 `Sigma` Even area + 4 `Sigma` odd areas]
D. `frac(D)(6)` [first area + last area +2 `Sigma` Even area + 4 `Sigma` odd areas]

5
 

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 x d - Sd1/2
D. `frac(1)(2)` (BD+Sd2)