Determine the correct length of a line 256.32 m long measured using a 50 m steel tape at  30°C. The steel tape was calibrated at 18°C.

A steel tape is 100.00 ft long and has a weight of 0.0225 lb/ft and is used to measure a line from A to B in two segments (one full tape length and one partial tape length), supported at the ends only for each of the two segments. The recorded distance is 181.83 ft. The pull at the time of measurement is 12 lb. What is the length of the line corrected for sag? (Assume that no other tape corrections need to be applied.)

A steel tape standardized at 20degree celcius and supported through out under tension of 90N Was found to be 30.377m long. The tape had a cross sectional area of 55mm^2 and a weight of 73g/m. This tape was used supported at the ends only with a constant tension of 78N to measure a line from A to B in nine segments. The data given in the following table were recorded. Apply correction for tape, length,temperature,pull,sag and tape not horizontal to determine the correct length of the line Difference in Elevation Cm) 0-392 Section Meacured Recarded Distance) Tempergrare A-1 15 1- 2 30 15 0.301 2-3 30 16 O.191 3-4 16 0-255 4-5 30 16 0-38 5-6 30 8.636 6-7 0.782 7-6 30 0-825 8-8 25.348 18 0.578 Sum = 265-348 m

You measured 300 ul with a 1000ul pipette; The corrected values were the following : 292 ul, 294ul, 287ul, 290ul, 288ul and 293 ul (mean- 290.7 ul and Std. dev + 280 ul) 3. Acceptable values are: Accuracy : 1.0% Precision: 0.5 % Were you accurate? Were you precise? and why? show cakulations