Calendar: 1884-1885 Page 672

666 APPLIED SCIENCES Describe how correction מ is made in chaining on in- clined ground both by the chain and also by instruments Convert 930 acres rood perches into square feet Sketch and describe two methods of continuing chain line past an obstruction line is required to be run at right angles to another line in the field How is this done both by the chain and by instruments Describe the several adjustments of the Theodolite Explain Parallax the "Diaphragm and the tl Line of Collimation Make sketch showing Field Book for Levelling with an Intermediate column and explain how the readings are entered and how each page is checked State the following Number of inches in link Number of links in chain Number of chains in mile circumferentor is used to enclose block of buildings by traverse survey Describe the several operations in using the instrument and also in ic closing the survey 10 Explain the terms '4Station "Tie Line "Tally Offset and show how field book is kept for surveying 11 How many square chains are there in an acre and how many acres are there in square mile 12 Give the formula for finding the area of triangle of which the sides are 13 Explain the use of the reduced levelM and distance columns of Field Book and describe how section is plotted therefrom VIIL-9rt$ 01 Construction Preliminary Work Draw to inch scale plan and section for rubble stone bridge 20 feet span and 20 feet wide to cross roadway 10 feet below the banks headway to be 12 feet Draw to inch scale the geometrical equilibration of segmental brick arch 30 feet span and 10 feet rise