Civil Engineering Survey Questions - Set 05 - ObjectiveBooks

Civil Engineering Survey Questions - Set 05

Practice Test: Question Set - 05

1. For a tachometer the additive and multiplying constants are respectively
    (A) 0 and 100
    (B) 100 and 0
    (C) 0 and 0
    (D) 100 and 100

2. Correct distance obtained by an erroneous chain is:
    (A) (Erroneous chain length/Correct chain length) × Observed distance
    (B) (Correct chain length/Erroneous chain length) × Observed distance
    (C) (Correct chain length/Observed distance) × Erroneous chain length
    (D) None of these

3. An imaginary line lying throughout on the surface of the earth and preserving a constant inclination to the horizontal, is called
    (A) Contour line
    (B) Contour gradient
    (C) Level line
    (D) Line of gentle scope

4. The constant vertical distance between two adjacent contours, is called
    (A) Horizontal interval
    (B) Horizontal equivalent
    (C) Vertical equivalent
    (D) Contour interval

5. If a 30 m chain diverges through a perpendicular distance d from its correct alignment, the error in length, is
    (A) (d2/60) m
    (B) (d2/30) m
    (C) (d2/40) m
    (D) (d/30) m

6. The sensitivity of a bubble tube can be increased by
    (A) Increasing the diameter of the tube
    (B) Decreasing the length of bubble
    (C) Increasing the viscosity of liquid
    (D) Decreasing the radius of curvature of tube

7. A standard steel tape of length 30 m and cross-section 15 × 1.0 mm was standardised at 25°C and at 30 kg pull. While measuring a base line at the same temperature, the pull applied was 40 kg. If the modulus of elasticity of steel tape is 2.2 × 106 kg/cm2, the correction to be applied is
    (A) - 0.000909 m
    (B) + 0.0909 m
    (C) 0.000909 m
    (D) None of these

8. Pick up the correct statement from the following:
    (A) It is difficult to eliminate an error completely at first trial
    (B) Instability of the instrument makes it almost impossible to adjust it satisfactorily
    (C) Adjustment screws must be left bearing firmly but should never be forced
    (D) All the above

9. The properties of autogenous curve for automobiles are given by
    (A) True spiral
    (B) Cubic parabola
    (C) Bernoulli's Lemniscate
    (D) Clothoid spiral

10. In chain surveying field work is limited to
    (A) Linear measurements only
    (B) Angular measurements only
    (C) Both linear and angular measurements
    (D) All the above

11. The difference of levels between two stations A and B is to be determined. For best results, the instrument station should be
    (A) Equidistant from A and B
    (B) Closer to the higher station
    (C) Closer to the lower station
    (D) As far as possible from the line AB

12. The curve composed of two arcs of different radii having their centres on the opposite side of the curve, is known
    (A) A simple curve
    (B) A compound curve
    (C) A reverse curve
    (D) A vertical curve

13. Pick up the correct statement from the following:
    (A) An observation or the resulting reading with the level on a levelling staff is called sight
    (B) A back sight is the first sight taken after setting up the instrument in any position
    (C) The first sight on each change point is a fore sight
    (D) All the above

14. The angle of intersection of a curve is the angle between
    (A) Back tangent and forward tangent
    (B) Prolongation of back tangent and forward tangent
    (C) Forward tangent and long chord
    (D) Back tangent and long chord

15. If ‘L’ is the perimeter of a closed traverse, ΔD is the closing error in departure, the correction for the departure of a traverse side of length ‘l’, according to Bowditch rule, is
    (A) ΔD × L/l
    (B) ΔD × l2/L
    (C) L × lD
    (D) ΔD × l/L

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