Calendar: 1890-1891 Page 781

ENGINEERING DEPARTMENT cxix fountain basin is in plan represented on your paper by regular octagon of side The length of one of the diagonals passing through the centre of the figure is 25 feet In centre of plan place circle having diameter of feet Outside the fountain runs circular path feet wide the diameter of its inner circle being 30 feet Draw triangle having sides 315 "35 and 25" long Around circle having diameter of 2" place similar triangle 6v cone having diameter of its base 3" and axis 3" lies on its side on the its axis being parallel to It is cut by horizontal plane that passes through the centre of the axis Show in plan the resulting section indicating by dotted lines the parts removed Draw circle having diameter of 4" Find two points and Β on its circumference 3" apart Draw two equal circles which shall be tangential to each other and which shall touch the given circle at points and Represent scale op yards feet and diagonally inches yard being represented by distance of 2J" Mark on this scale distance of yard feet inches prism 2" long and having hexagonal ends of 1" side lies on ground its ends being parallel to us Leaning across the centre of one of its rectangular faces is cone of 2'' diameter and axis of The axis of the cone is parallel to and at 45 with Represent the objects in plan and elevation and also when the hexagonal ends of the prism are inclined from us at 30 the base of the cone being visible 10 Plan and elevation required of four steps each long with rise and tread the edges of the steps in plan to be at angle of 45 with Resting on these at their centres and having one end on the ground is block 5' long thick and wide Scale to 1' 11 Three points are given and Β are 2J apart is 2" from and 2£ from From these three points as centres describe three circles tangential to each other 12 Draw square having an area of seven square inches