Calendar: 1876-1877 Page 612

612 ENGINEERING AND APPLIED SCIENCES 10 Given the following magnetic bearings and variation required in each case the true bearings 48 12 15 var 21 30 var 11 If in rectangular field the sides were feet broader and feet longer it would contain 116 square feet more but if it were feet broader and feet longer it would contain 113 feet more Required length and breadth FIRST YEAR Describe the theodolite and its adjustments What is the usual field check adopted to secure accuracy when using the theodolite and give an example the first angle being 130 24 Describe the level state what it is used for and give an illustration of the diagonal levelling staff What is the length of Gunter's chain and why is it of this particular length What is the rule when measuring up or down hills Show how to lay off perpendicular with the chain Describe the circumferentor and the mode of using it circular garden contains three acres there is path all round it eight feet wide how many acres will there be inside the path rectangular field is 20 Iks longer than it is wide if contains 22J acres How many square yards will there be in ft path all round inside Scotch field contains 15A 2R 24p required the value in Derbyshire and Statute acres 10 The sides of triangular field are 250 200 and 150 yards find contents in acres roods and poles VIII -arts of Construction COMPARE together the best natural limestone the best artificial sandstone and the best imitation in cement