Surveying Online Test – Paper 2

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Vikash chaudhary

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Total Questions: 30
Time Allotted: 30 minutes
Passing Score: 50%
Randomization: Yes
Certificate: No
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1 / 30

1. A relatively fixed point of known elevation above the datum is called

a) datum point

b) benchmark

c) reduced level

d) reference point

2 / 30

2. A transition curve introduced between the tangent and the circular curve should

a) have infinite curvature at the junction of straight and transition curve

b) have zero curvature at the junction of straight and transition curve

c) meet the curve tangentially

d) none of the above

3 / 30

3. Actually, which is not the method of plane tabling?

a) radiation

b) intersection

c) resection

d) traversing

4 / 30

4. The instrument used for measuring area on a contour map is

a) graph meter

b) planimeter

c) area meter

d) clinometers

5 / 30

5. The chain length which is not the standard metric chain length is

a) 10m

b) 20m

c) 25m

d) 30m

6 / 30

6. The error eliminated by taking the mean of both face observations is

a) error due to eccentricity of verniers

b) error due to imperfect adjustment of levels

c) error due to the line of collimation not being perpendicular to the horizontal axis

d) all of the above

7 / 30

7. The central angle subtended by an arc of 30m of the curve

a) 573/R

b) 1146/R

c) 1718.9/R

d) 3435/R

8 / 30

8. For the construction of a highway railway

a) longitudinal sections are required

b) cross sections are required

c) both longitudinal and cross sections are required

d) none of these

9 / 30

9. Direction of the closing error is given by

a) sin^-1 ΣD/ΣL

b) tan^-1 ΣD/ΣL

c) sin^-1 ΣL/ΣD

d) tan^-1 ΣL/ΣD

10 / 30

10. The curvature and refraction corrections applied to staff readings respectively are

a) both +ve

b) both -ve

c) +ve and -ve

d) -ve and +ve

11 / 30

11. In a traverse, the algebraic sum of the deflection angles, taking the right-hand deflection angles as positive and left-hand deflection as negative, should be equal to

a) (N-4) right angles

b) (2N-4) right angles

c) 180°

d) 360°

12 / 30

12. The difference between the most probable value of a quantity and its observed value is

a) conditional error

b) true error

c) residual error

d) safe error

13 / 30

13. In trigonometrical leveling, the combined correction is given by (where m=coefficient of refraction)

a) d^2/ 2R

b) (1-2m) d^2 / 2R

c) 0.0673 d^2

d) none of the above

14 / 30

14. Right face and left face readings are taken to

a) get the correct reading

b) eliminate error of trunnion axis not being exactly horizontal

c) eliminate error in the vertical axis

d) eliminate error in the line of collimation

15 / 30

15. The needle is adjusted for

a) balancing

b) straightening vertically and horizontally

c) all of the above

d) sensitivity

16 / 30

16. The magnetic declination at a place is 7°20' W, the bearing given by the compass is S45°40'E, the true bearing of the place is

a) N53°0'E

b) S53°0'E

c) N53°0'W

d) S53°0'W

17 / 30

17. If the included angle is greater than 180°, the deflection angle is

a) right-handed or positive

b) left-handed or negative

c) 90°

d) none of the above

18 / 30

18. An anallatic lens is a.... used to remove an additive constant in a tacheometer.

a) convex lens

b) concave lens

c) compound concave and convex lens

d) plain lens

19 / 30

19. The number of horizontal cross wires in a stadia diaphragm is

a) 1

b) 2

c) 3

d) 4

20 / 30

20. The sensitivity of the bubble tube can be increased by

a) decreasing the radius of curvature of the tube

b) decreasing the length of the bubble

c) increasing the diameter of the tube

d) increasing the viscosity of the fluid

21 / 30

21. In survey works, declination varies from time to time and place to place. The main important variation is

a) secular variation

b) annual variation

c) diurnal variation

d) irregular variation

22 / 30

22. In the direct method of contouring, the process of locating points lying on a contour is known as

a) horizontal control

b) vertical control

c) ranging

d) none of the above

23 / 30

23. A series of straight, parallel, and widely spaced contours on a map represent a

a) valley

b) ridge

c) curved surface

d) inclined plane surface

24 / 30

24. The position of a point can be fixed more accurately by

a) perpendicular offset

b) optical square

c) prism square

d) oblique offsets

25 / 30

25. The magnification of a telescope lens depends upon

a) the focal length of the eyepiece

b) the focal length of the objective lens

c) the ratio of (b) and (a) above

d) the inverse of the ratio of (b) and (a) above

26 / 30

26. The upgrade road meets with the downgrade road, then the curve formed at the junction is called

a) valley climb

b) entrant curve

c) summit curve

d) all of the above

27 / 30

27. Compensating errors in chaining or other surveys are

a) proportional to the length of the line

b) proportional to the square root of the length of the line

c) inversely proportional to the square root of the length of the line

d) inversely proportional to the length of the line

28 / 30

28. Find the length of curve if the radius of the curve is 50 m, and the angle of deflection is 60°

a) 52m

b) 104m

c) 34m

d) none of the above

29 / 30

29. In a double-line river, contours are

a) stopped at the bank of the river

b) stopped at the edge of the river

c) drawn across the water

d) none of the above

30 / 30

30. The bearing of line AB is 200° and that of BC is 270°, the included angle ABC is

a) 110°

b) 80°

c) 90°

d) none of the above

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