is a conventional sign of

More Questions from Surveying

• Surveys which are carried out to provide a national grid of control for preparation of accurate maps of large areas, are known
• The first reading from a level station is
• Straight, parallel and widely spaced contours represent
• The staff reading at a distance of 80 m from a level with the bubble at its centre is 1.31 m. When the bubble is moved by 5 divisions out of the centre, the reading is 1.39 m. The angular value of the one division of the bubble, is
• It is more difficult to obtain good results while measuringhorizontal distance by stepping
• Pick up the incorrect statement from the following :
• If + 0.8% grade meets - 0.7% grade and the rate of change of grade for 30 m distance is 0.05, the length of the vertical curve will be
• In a telescope the object glass of focal length 14 cm, is located at 20 cm from the diaphragm. The focussing lens is midway between them when a staff 16.50 m away is focussed. The focal length of the focussing lens, is
• If D is the degree of the curve of radius R, the exact length of its specified chord, is
• The 10 mm markings on a levelling staff placed at 20 m are separated by

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