Calendar: 1869-1870 Page 522

524 APPLIED SCIENCES length double of either is to he shown in such position that the plan of its upper face is square Find its plan when one diagonal of the solid is vertical Project the shadow cast on one plane only by the solid in either position Make an isometrica projection of the solid with circular hole through its entire thickness not less than 1" diameter FIRST YEAR Draw three circles of 1"2 75 and 2" 25 diameters each circle touching the other two Find fourth proportional to these three given lines and write down its length Draw quadrilateral figure having three of its sides 2" 1"95 and 23 respectively and two of its angles 72 write down the length of its remaining side Draw square equal to it in area Draw circle of 75 inch radius treat it as the section of sphere of 2"5 diameter complete plan and elevation of both and- Show the form of an equal section when made by plane inclined at 30 to the horizontal plane Draw any plane inclined to both the vertical and horizontal planes of projection touching the sphere and ahow point of contact -i&anufacturing ftrt anU JHarijtntrj SECOND YEAR What is the "duty" of an engine How is it calculated and what is the usual allowance of coal per horse power per hour How do you calculate tbe horse-power from an indicator figure and what is the difference between indicated and nominal horse-power