Objective Questions on Surveying and Levelling - Set 02 - ObjectiveBooks

Objective Questions on Surveying and Levelling - Set 02

Practice Test: Question Set - 02

1. In direct method of contouring, the process of locating or identifying points lying on a contour is called
    (A) Ranging
    (B) Centring
    (C) Horizontal control
    (D) Vertical control

2. The Random errors tend to accumulate proportionally to
    (A) Numbers of operations involved
    (B) Reciprocal of operations involved
    (C) Square root of the number of operation involved
    (D) Cube root of the number of operation involved

3. The conventional sign shown in below figure represents a
Surveying and Levelling - Set 02
    (A) Road bridge
    (B) Railway bridge
    (C) Canal bridge
    (D) Aquaduct

4. Pick up the incorrect statement from the following:
    (A) While measuring a distance with a tape of length 100.005 m, the distance to be increasing by 0.005 m for each tape length
    (B) An increase in temperature causes a tape to increase in length and the measured distance is too large
    (C) The straight distance between end points of a suspended tape is reduced by an amount called the sag correction
    (D) A 100 m tape of cross section 10 mm × 0.25 mm stretches about 10 mm under 5 kg pull

5. For the construction of highway (or railway)
    (A) Longitudinal sections are required
    (B) Cross sections are required
    (C) Both longitudinal and cross sections are required
    (D) None of these

6. Detailed plotting is generally done by
    (A) Radiation
    (B) Traversing
    (C) Resection
    (D) All of the above

7. If the smallest division of a vernier is longer than the smallest division of its primary scale, the vernier is known as
    (A) Direct vernier
    (B) Double vernier
    (C) Retrograde vernier
    (D) Simple vernier

8. The method of reversal
    (A) Is usually directed to examine whether a certain part is truly parallel or perpendicular to another
    (B) Makes the erroneous relationship between parts evident
    (C) Both (a) and (b)
    (D) Neither (a) nor (b)

9. The line normal to the plumb line is known as
    (A) Horizontal line
    (B) Level line
    (C) Datum line
    (D) Vertical line

10. In levelling operation
    (A) When the instrument is being shifted, the staff must not be moved
    (B) When the staff is being carried forward, the instrument must remain stationary
    (C) Both (a) and (b)
    (D) Neither (a) nor (b)

11. The two point problem and three point problems are methods of
    (A) Resection
    (B) Orientation
    (C) Traversing
    (D) Resection and orientation

12. Ramsden eye-piece consists of
    (A) Two convex lenses short distance apart
    (B) Two concave lenses short distance apart
    (C) One convex lens and one concave lens short distance apart
    (D) Two Plano-convex lenses short distance apart, with the convex surfaces facing each other

13. The line of sight is kept as high above ground surface as possible to minimise the error in the observed angles due to
    (A) Shimmering
    (B) Horizontal refraction
    (C) Vertical refraction
    (D) Both shimmering and horizontal refraction

14. If ‘I’ is the stadia distance, ‘f’ is the focal length and ‘d’ is the distance between the objective and vertical axis of the techeometer, the multiplying constant, is
    (A) f/i
    (B) i/f
    (C) (f + d)
    (D) f/d

15. The desired sensitivity of a bubble tube with 2 mm divisions is 30". The radius of the bubble tube should be
    (A) 13.75 m
    (B) 3.44 m
    (C) 1375 m
    (D) None of these

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