3. Given the respective reading from an internally focused instrument from a stadia rod are as follows; Upper stadia reading = 1.100m Middle reading = 1.195m Lower stadia reading = 1.290 A. What is the rod intercept S? B. Determine the stadia distance C. Compute the elevation of sighted station if the height of level instrument from the occupied station is 1.50m. Assume elevation of station occupied is 100m

4. Given the following set of stadia level notes: BACKSIGHT FORESIGHT STA STADIA VERTICAL ROD STADIA VERTICAL ROD ELEV INTERVAL INTERVAL READING INTERVAL INTERVAL READING A 1.75 -15°45' 2.10 425.15 ТР-1 2.15 -18°10' 1.92 1.55 +12°48' 1.58 В 3.20 -09°18' 1.65 The instrument used was a transit with an internal focusing telescope and a stadia interval factor of 98, and all linear measurements are in meters. FIND: A. The difference in elevation between station A and the turning point B. The elevation of TP-1 C. The elevation f B D. The difference in elevation between A and B.

The upper and lower stadia hair readings on a stadia rod held at station B were observedas 3.50 and 1.00m respectively, with the use of a transit with an interval focusingtelescope and having a stadia interval factor of 99.5. The height of the instrument abovestation A is 1.45m and the rod reading is taken at 2.25m. If the vertical angle observed is-23034’, determine the following:a. Inclined stadia distanceb. Difference in elevation between the two stationsc. The elevation of station B, if the elevation of station A is 155.54m above mean sealevel.

A differential leveling circuit began on BM Hydrant (orthometric height 5869.31 ft) and closed on BM Rock (orthometric height 5880.03 ft). The plus sight and minus sight distances were kept approximately equal. Readings (in feet) given in the order taken are 2.68 (+S) on BM Hydrant, 5.59 (−S) and 10.83 (+S) on TP1, 6.46 (−S) and 10.61 (+S) on BM 1, 8.91 (−S) and 7.57 (+S) on BM 2, 5.14 (−S) and 9.01 (+S) on TP2, and 3.83 (−S) on BM Rock. Prepare, check, and adjust the notes.