Surveying Questions Set 34:
Which triangulation system has the least probability of errors?
Solution:
If the fore bearing of a line is observed to be AB 12
24’, the back bearing of line AB should be?
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The magnetic bearing of a line AB is S 45 ° E and the declination is 5 ° west. The true bearing of the line AB is
Solution:
A 10 cm long line on an original map now measures 8 cm. Determine the shrunk scale if the original scale on the map was 1 cm = 50 m.
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The type of surveying in which the curvature of the Earth is taken into account is called
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The following readings were taken on a continuously downwards sloping ground. Which of the readings is wrong?
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A light house of 120 m height is just visible above the horizon from a ship. The correct distance (m) between the ship and the light house considering combined correction for curvature and refraction, is
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The R.L. of the floor is 100.78 m and the staff reading on the floor is 2.32 m. The reading on a staff held upside down against the underside of the beam, if the R,L, of the underside of the Tee-beam is 106.4 m, is _______ m.
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On a map drawn to a scale of 50 m to 1 cm, a surveyor measured the distance between two stations as 3,500 m. However, they had mistakenly used a scale of 100 m to 1 cm. Find the true distance between the stations.
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The plan area of an old survey plotted to a scale of 10 m to 1 cm presently measures 82.5 cm2. It is believed that the plan has shrunk so that the original line of 10 cm now measures 9.1 cm. Also, the chain used was 20 m long but was 9 cm too short. The true area of the survey is:
Solution:
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