1} 2} 3} 4.1 The length of a line measured with a 30m tape is 310.550 m. When the tape is compared to the standard it is found to be 0.010 m too short under the same conditions of support, tension, at temperature as existed during measurement of the line. Compute the length of the line. 4.5 A 30m tape having a standard length of 30.005 m is to be used to lay out a building that has plan dimensions of 150.000 by 270.000 m. What horizontal measurements must be made on the ground in the field to perform this layout? 4.6 The following slope distances and differences in elevations between the tape ends were recorded for a measurement: Slope distance Difference in elevation, m 30.005 1.452 29.950 3.500 30.000 0.505 25.989 2.445 10.345 1.595 4} 5} 5} Calculate the horizontal distance between the two endpoints of this line. 4.16 A steel tape having a standardized length of 29.990 m, with 8 kg tension, at 20C, and supported at the two ends, was used to measure a distance over smooth , level terrain using standard support and tension and at an average recorded temperature of 30C. The recorded distance was 915.258 m. Determine the correct horizontal distance. The weight of the tape is 0.60 kg. 4.20 A standardized 30-m tape weighing 0.7 kg measures 29.9935 m fully supported, with 8.0 of tension and at 20C. [a] A horizontal distance of 3248.835 m is measured with the tape fully supported, with 8.0 kg of tension on full tape lengths {3.0 kg on the partial length) and at a temperature recorded at 8C. Determine the correct horizontal distance. [b] A horizontal distance of 200.843 m is to be measured from a monument to set an adjacent property corner. What horizontal must be measured under standardization conditions of support and tension to set this property where the temperature is 21C? A 50m tape of standard length has a weight of .05kg/m, with a crosssectional area of 0.04- sq.cm. It has a modulus of elasticity of 2.10)t106 kgfsq.cm. The tape is of standard length under a pull of 5.5 kg when supported throughout its length and a temperature of 20C. This tape was used to measure a distance between A and B and was recorded to be 458.65m. long. At the time of measurement the pull applied was 8 kg. with the tape supported only at its end points and the temperature observed was 18C. Assuming coefficient of linear expansion of the tape is 0.0000116m;'C. Compute for the true length (with the combined effects of tension, sag and temperature] of the measured line AB. Plot (Illustrate) the following: 7} 6.3 The following azimuths are from the north: 32920', 18035', 4832', 17030', 14525', 31935', 35045', 9549', 1130', 23545l. Express these directions as (a) azimuth from the south, {b} back avirru Ifl'ic fr'l hnnrin m
