Calendar: 1873-1874 Page 566

5CG APPLIED SCIENCES SECOND YEAR Explain the adjustments of the theodolite How without an instrument would you measure across river and through wood Required the base of an isosceles triangle the angle at the vertex being 30 and the area included being 200 acres Given 20£ variation Convert the following into true bearings 24 68 45 60 Construct Vernier to read oif to seconds when the arc is divided into minutes Given the bearings and distances of an old road from to 16 20 chs 24u 60 chs 21 51 chs 10 40 chs 12 30 18 chs to What would be the bearing and distance of new road to run straight from to Set the theodolite on hill and levelled it carefully The web centre covered the spire tops of two churches and was miles and 84 chains off and miles How much was spire higher than spire FIRST YEAR Describe the Circumferentor and explain its uses Describe the spirit level and staff Explain the meaning of back-set intermediate fore-set and shew how the reduced levels are arrived at Explain the mode of using the theodolite and how to repeat an angle What is the principle upon which the vernier is divided In using the theodolite what is meant by surveying by the back angle and what by two angles Given circular enclosure containing acres roods and 20 poles required the area in feet super of path all round inside of 10 feet wide