Calendar: 1881-1882 Page 670

APPLIED SCIENCES G71 SECOND YEAR The side of square field measures 135 yards How many acres roods and perches are there in the field State the formula for finding the area of triangle in terms of the sides How can the variation of the needle from the true north be ascertained both by day and night Describe generally the construction and use of the box sextant What is the cause of parallax י in the telescope of theodolite and how is it rectified The angle subtended by the summit and base of tower at distance measured horizontally from its base being explain how the height Ξ of the tower is ascertained in terms of and Describe the computing scale Describe the planimeter In setting out curve with the chain what is the formula by which the several offsets are ascertained in terms of the radius of the curve and the distance between each offset 10 In chaining on declivity how is the necessary correction calculated and how is it ascertained by clinometer 11 Describe trigonometric method of continuing base line across river 12 If represents the length of line measured on an elevated plateau having height Ξ above the sea level what would the length of the line be at the sea level in terms of the radius of the earth FIRST YEAR Describe two methods of erecting perpendiculars with the chain alone The length of road is 800 yards Reduce this to chains and links