Surveying

1

The Trapezoidal rule of volumes V of an embankment divided into a number of sections equidistant D, is given by

A. `V = D [(A_1 + A_n)/(2) A_2 + A_3 + .................+ A_(n - 1)]`
B. `V = D/2 [(A_1 + A_n)/(4) A_2 + A_3 + .................+ A_(n - 1)]`
C. `V = [A_1 + A_n + 2(A_2 + A_4 + ........+ A_(n -1) + 4(A_3 + A_5 + .......+ A_(n-2))]`
D. `V = [A_1 + A_n + 4(A_2 + A_4 + ........+ A_(n -1) + 4(A_3 + A_5 + .......+ A_(n-2))]`

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2: If `Delta`is the angle of deflection of a simple curve of radius R, the length of its long chord, is

A. R cos`Delta/2`

B. 2R cos`Delta/2`

C. R sin`Delta/2`

D. 2R sin`Delta/2`

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3: Correction per chain length of 100 links along a slope of `alpha^circ` is

A. `(1.5 alpha^2)/(100)`

B. `(1.5 alpha)/(100)`

C. `(1.5 alpha^3)/(100)`

D. `1.5 alpha^3`

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4: If F is the pull applied at the ends of tape in kg, l is the length of tape between end marks in metres, w is the weight of the tape in kg per metre run, then sag correction

A. `C = (W^2 l^3)/(24F^2)`

B. `C = (W^3 l^2)/(24F^2)`

C. `C = (W^2 l^3)/(24F^3)`

D. `C = (24W^2 l^3)/(80F^3)`

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5

If `Delta` is the angle of deflection of a simple curve of radius R, the distance between the mid-point of the curve and long chord, is

A. `R( 1- sin ` ` Delta/2`)

B. `R( 1+sin ` ` Delta/2`)

C. `R( 1+ cos ` ` Delta/2`)

D. `R( 1- cos ` ` Delta/2`)

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