Calendar: 1879-1880 Page 635

APPLIED SCIENCES 635 FIRST YEAR Describe the methods of continuing the base line across broad river by means of the chain alone by the use of an angular instrument Explain the construction of the Vernier Scale attached to the graduated limb of the theodolite and its use How many distinct and independent motions has the theodolite What screws control them In working with the circumferentor what is meant by variation of the compass What is the "diagonal levelling staff" Draw diagram showing its construction Define the meanings of intermediate bench mark and reduced levels also of back set" and "fore set rectangular field contains 200 acres the adjacent sides are to each other as is to required the length of the two sides circular plot of meadow land having diameter of 40 chains contained triangular pond having the sides respectively and 10 chains long required the amount of land in the plot In repeating an angle suppose the first angle observed to be 324 15' what should the 2nd and 3rd angles read 10 With reference to question No what would be the contents in feet super of path inside ah round the circle having width of 10 feet IX -arts of ConStruttion -All Drawings to be hand sketches to scale QUESTIONS FOR WORK BEFORE EXAMINATION Piers of stock brick in good mortar 14 inches square 10 feet high and 15 feet apart carry solid 18 inch brick wall how high may this wall safely be made What size ought an oak post to be to do the same work as the brick pier if possible