Calendar: 1890-1891 Page 773

ENGINEERING DEPARTMENT long at point Η inches from the middle the string ind the two ends of the string are attached to ז wo points 16 inchea apart in the same horizontal line When two forces act in one plane on dilVorent points 111 about any point in their plane is equal to the moment of their resultant about the same point heavy uniform rod whose mass is 10 lbs can turn freely about fixed hinge at one extremity it carries smooth ring which is attached to fixed point in the same horizontal plane with the hinge by means of string equal If Find the position in which the rod will rest and the tension of the string the rod being four times the kngth of the string -J3utlKmg Construction anti ftrrljitrcturc Prepared Work Design stone arch bridge span 25 fret width 20 feet with one footpath an elliptical arch to rise lert the roadway to rise foot to span 20 feet road below with banks at 45 degrees headway 15 feet Drawings to inch scale half plans below and above half longitudinal section and half elevation Design timber roof to cover 30 feet by 30 feet Drawings to £ inch scale plan and section Design rolled iron girder to cany '20 tons of hrnk wall across 20 feet and show how to relieve it by an arch Describe the historical progress of architecture in England in modern times Suggest what principles of artistic or ornamental design ought to govern the ironwork of engineers