Civil engineer objective questions – Survey (Section-1)

1. Principle of surveying is

a) to work from whole to the part

b) to work from part to whole

c) both (a) and (b) above

d) none of the above

2. Under Survey “working from whole to part” is done

a) to prevent the accumulation of error

b) to localize the error

c) both of the above

d) none of the above

3. The curvature of the earth’s surface is taken into account only if the extent of survey is more than

a) 60 sq km

b) 160 sq km

c) 260 sq km

d) 500 sq km

4. Geodetic survey is different from plane surveying because of

a) very large area is covered

b) the curvature of the earth is considered

c) undulations of the topography

d) the large difference of elevations

5. The limitation for geodetic survey is

a) 150 km²

b) 250 km²

c) 350 km²

d) 400 km²

6. Hydrographic survey deal with the mapping of

a) large water bodies

b) canal system

c) cloud movement d) none of the above

7 The survey which is carried out for determining absolute locations and the direction of any line on the surface of the earth by making observation to heavenly bodies is called

a) hydrographic survey

b) astronomical survey

c) land survey

d) none of the above

8. A scale representing either three units or only one unit and its fractions upto second place of decimal point is

a) diagonal scale

b) comparative scale

c) simple vernier

d) shrunk scale

9. 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) dimple vernier

d) retrograde vernier

10. The scale used to measure and to set out the angles is

a) diagonal scale

b) comparative scale

c) vernier scale

d) scale of chords

11. If s is the value of one smallest division on main scale, v is the value of one smallest division on the vernier and n is the number divisions on the vernier, then least count is given by

12. A discrepancy is the difference between

a) true value and error

b) measured value and actual value

c) two measured values of the same quantity

d) none of the above

13. Find the R.F. for scale, 1cm=5m

a) 1/5

b) 1/50

c) 1/500

d) 1/5000

14. Find the representative fraction for a scale 10 cm = 2 km.

a) 1/200

b) 1/20000

c) 1/2000000

d) none of the above

15. The designation of scale recommended by IS: 1491-1959

a) A to C

b) A to D

c) A to E

d) A to F

16. Least count is given by

a) p-v

b) v-p

c) p+v

d) both a) and b) of above

Where p & v are the smallest division of primary & secondary scale respectively.

17. Which of the following scale is the smallest one

a) 1cm=10m

b) 1cm=100m

c) lcm=1000m

d) 1cm= 104 m

18. Compensating errors in chaining or other survey 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

19. The errors which are not possible to correct is

a) positive cumulative error

b) negative cumulative error

c) compensating error

d) none of the above

20. Negative errors are caused in chain, when its length is

a) more than the standard length

b) less than the standard length

c) equal to the standard-length

d) any of the above

21. Theory of probability is applied to

a) cumulative errors

b) compensative errors

c) accidental errors

d) none of the above

22. The most probable value of an observed quantity available from a given set of observation is the one for which the sum of the square of errors is a minimum. This statement is called as

a) principle of least square

b) law of errors

c) principle of square errors

d) none of the above

23. 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

24. The maximum allowable limit up to that a measurement may vary from the true value is known as

a) permissible error

b) residual error

c) expected error

d) systematic error

25. The types of error which are of cumulative nature and can be corrected is known as

a) permissible error

b) residual error

c) expected error

d) systematic error

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