Practice Test: Question Set - 04

1. In the cross-section method of indirect contouring, the spacing of cross-sections depends upon

(i) Contour interval

(ii) Scale of plan

(iii) Characteristics of ground

The correct answer is

(A) Only (i)

(B) (i) and (ii)

(D) (i), (ii) and (iii)

2. Transition curves are introduced at either end of a circular curve, to obtain

(A) Gradually decrease of curvature from zero at the tangent point to the specified quantity at the junction of the transition curve with main curve

(B) Gradual increase of super-elevation from zero at the tangent point to the specified amount at the junction of the transition curve with main curve

(C) Gradual change of gradient from zero at the tangent point to the specified amount at the junction of the transition curve with main curve

(D) None of these

3. If α and β be the elevations of two objects A and B respectively, θ be the angle observed by a sextant. The correct horizontal angle is

(A) cos ϕ = (cos θ - sin α sin β)/ cos α. cos β

(B) cos ϕ = (sin θ - sin α sin β)/ cos α. cos β

(D) None of these

4. Tilt of the staff in stadia tacheometry increases the intercept if it is

(A) Away from the telescope pointing down hill

(B) Towards the telescope pointing up-hill

(D) None of these

5. A dumpy level is set up with its eye-piece vertically over a peg ‘A’. The height from the top of peg ‘A’ to the centre of the eye-piece is 1.540 m and the reading on peg ‘B’ is 0.705 m. The level is then setup over ‘B’. The height of the eye-piece above peg ‘B’ is 1.490 m and a reading on ‘A’ is 2.195 m. The difference in level between ‘A’ and ‘B’ is

(A) 2.900 m

(B) 3.030 m

(D) 0.785 m

6. Three point problems can be solved by

(A) Tracing paper method

(B) Bessel’s method

(D) All of the above

7. In a lemniscate curve the ratio of the angle between the tangent at the end of the polar ray and the straight, and the angle between the polar ray and the straight, is

(A) 2

(B) 3

(D) 3/2

8. The bellow figure is a conventional sign of

(A) Mosque

(B) Temple

(D) Idgah

9. A level when set up 25 m from peg A and 50 m from peg B reads 2.847 on a staff held on A and 3.462 on a staff held on B, keeping bubble at its centre while reading. If the reduced levels of A and B are 283.665 m and 284.295 m respectively, the collimation error per 100 m is

(A) 0.015 m

(B) 0.030 m

(D) 0.060 m

10. Hydrographic surveys deal with the mapping of

(A) Large water bodies

(B) Heavenly bodies

(D) Canal system

11. Bowditch rule is applied to

(A) An open traverse for graphical adjustment

(B) A closed traverse for adjustment of closing error

(D) None of the above

12. Angles to a given pivot station observed from a number of traverse stations when plotted, the lines to the pivot station intersect at a common point

(A) Angular measurements are correct and not the linear measurements

(B) Linear measurements are correct and not the angular measurements

(D) Angular and linear measurements and also plotting of the traverse are correct

13. Pick up the correct statement from the following:

(A) The horizontal angle between magnetic meridian and true meridian at a place is called magnetic declination or variance of the compass

(B) The imaginary lines which pass through points at which the magnetic declinations are equal at a given time are called isogonic lines

(D) All the above

14. Straight, parallel and widely spaced contours represent

(A) A steep surface

(B) A flat surface

(D) Curved surface

15. The real image of an object formed by the objective must lie