Civil Engineering - Surveying

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Question - 1

In a plan, a 10 cm scale drawn shrunks to 9.7 cm. If the scale of the given plan is written as 1:250, what is the actual length of a line which at present shows 10 cm?

  • A 10.31 m
  • B 25.77 m
  • C 10.31 cm
  • D 25.77 cm

Question - 2

Which of the following scale is the smaller and largest respectively?
I. 1cm=10m
II. 1:10000
III. RF=\(\frac { 1 }{ 100000 } \)
IV. 1cm=1000km

  • A I,II
  • B II,III
  • C III,IV
  • D IV,I

Question - 3

The length of a survey line was measured with a tape having nominal length 20 m and was found to be 236.4m. As a check the length was again measured with 30 m tape and was found to be 240.5m. On testing it was found that the 20 m tape is 6 cm too short. What is the true length of 30m tape?

  • A 20 cm too short
  • B 60 cm too short
  • C 20 cm too long
  • D 60 cm too long

Question - 4

The area of a plane of an old map plotted to a scale of 10m to 1cm measures 100.2\({ cm }^{ 2 }\)as measured by planimeter. The plane is found to have shrunk so that a line originally 10cm long measures 9.7 cm. Further the 20m tape used was 8 cm too short. The true area of survey is

  • A 105.643 acres
  • B 106.494 acres
  • C 106.921 acres
  • D 104.569 acres

Question - 5

With what accuracy must the slope angle \({ 5 }^{ \circ }{ 30 }^{ ' }\) be measured if the horizontal distance from the measured slope distance of 1320.50m is to be accurate to 0.005m?

  • A \({ -18 }^{ " }.948\)
  • B \({ -8 }^{ " }.948\)
  • C \({ -{ 8 }^{ ' }8 }^{ " }.948\)
  • D \({ -8 }^{ " }.148\)

Question - 6

The magnetic bearing of a line AB is S \({ 30 }^{ \circ }\)E. If the declination is \({ 6 }^{ \circ }\)west, then what is the true bearing?

  • A \({ S 36}^{ \circ }E\)
  • B \({N 36 }^{ \circ }W\)
  • C \({ S24 }^{ \circ }E\)
  • D \({ N24 }^{ \circ }W\)

Question - 7

The true bearing of a line is \({ 34}^{ \circ }{20 }^{ ' }{ 40 }^{ " }\)and the magnetic declination at the place of observation is \({ 2}^{ \circ }{00 }^{ ' }{ 20 }^{ " }\) on the date of observation. The magnetic bearing of the line is

  • A \({ 36}^{ \circ }{21 }^{ ' }{ 00 }^{ " }\)
  • B \({ 34}^{ \circ }{20 }^{ ' }{ 20 }^{ " }\)
  • C \({ 32}^{ \circ }{20 }^{ ' }{ 20 }^{ " }\)
  • D \({ 32}^{ \circ }{00 }^{ ' }{ 20 }^{ " }\)

Question - 8

The magnetic bearing of a line in IIT roorkee was found to be  \(N40^{ \circ }30^{ ' }W\) in 1988 when the present magnetic bearing if declination is \({ 2 }^{ \circ }W\)?

  • A \(N44^{ \circ }45^{ ' }W\)
  • B \(S42^{ \circ }45^{ ' }W\)
  • C \(N42^{ \circ }45^{ ' }E\)
  • D \(N42^{ \circ }45^{ ' }W\)

Question - 9

The two bearing of TV tower T at HBTI campus Kanpur was observed as \(N3^{ \circ }W\)and the magnetic bearing of same was \(N7^{ \circ }W\). The fore bearing of line AB is \(N70^{ \circ }W\), measured with surveyor compass. What would be the true fore bearing of line AB?

  • A \(N78^{ \circ }W\)
  • B \(N74^{ \circ }W\)
  • C \(N66^{ \circ }W\)
  • D \(N74^{ \circ }E\)

Question - 10

A bench mark has been established at the soffit of an ornamental arch at the known elevation of 100.0m above mean sea level. the back sight used to establish height of instrument is an inverted staff reading of 2.105 m. A forward sight reading with normally held staff of 1.105m is taken on recently constructed plinth. the elevation of the plinth is

  • A 103.210 m
  • B 101.000 m
  • C 99.00 m
  • D 96.790 m
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