Calendar: 1884-1885 Page 664

658 APPLIED SCIENCES What is meant by the line of resistance in structure wall of brickwork ft thick at the top and ft at the bottom and sloping inwards is built round reservoir find the depth in order that the line of resistance may cut the base inches within the outside of the wall when the reservoir is full Find the equation to the line of resistance in the wall 9ו Draw diagram of forces for truss supporting roof AD Β EC where and Ε are the middle points of AB and BC which are inclined at 30 to the horizon and find the values of the stresses for given weight of roof If trapezium with two parallel sides revolve about an axis perpendicular to those sides she that the volume of the solid described is found by multiplying the area of the trapezium by the length of the path of its centre of gravity Shew that the moment of inertia of cylinder of height about its axis is equal to jr phr Hence find the moment of inertia and the time of oscillation of cylinder about one of its generating lines FIRST YEAR Distinguish between weight and mass If the weight of certain mass be represented by 20 at place where body falls through 64 ft in sees what will be the weight of the