Calendar: 1890-1891 Page 778

ENGINEERING DEPARTMENT Distinguish between Syenite and Diorite mineralogically What modern deep sea deposits resemble any which collected during the Geological ages Give brief descrip- tion of them Describe Belemnite and an Ammonite What are the names and mineral characters of the highest Cretaceous Rocks and of the lowest Eocene Rocks in England Explain the biological break which occurs between them What are the great divisions of the Oolitic strata Instrumental rafoin SECOND AND THIRD YEARS prism 3£" long and having hexagonal ends to lJr" side rests on the ground on one of its rectangular faces It is penetrated by prism of the same form and dimensions that stands on one of its hexagonal ends the axis of the second prism cutting axis of first at its centre Represent these two in elevation and plan when the axis of the first prism is parallel to us The visible side most to our left of the erect prism recedes from us at 45 Show all visible lines of penetration י Draw cone having base of 3J" diameter and its axis 3" Draw line at 45 with the base sloping upwards to- wards the left and of the greatest length possible Consider this section line Give the development of cone and show how this section affects it prism 3" long and having its ends hexagons of side rests on the ground its axis being parallel to cone having axis of 2f" lies on the ground axis making angle of 45 with the One extremity of the horizontal diameter of the cone touches one of the edges of the prism in its centre