- Homework Solutions
- Homework Questions & Answers
solution is mentioned below with little explanation.
positive response is appreciable.
1: yes expansion of steel tapes is a source of systematic error.(happens due to temperature greater than standard)
2:slope, tension, sag and temperature correction are not random errors as these errors are cumulative in nature and can be positive or negative and is a systematic error. hence false
3: they are random in nature which can be nullified by themselves as they happen by human observations, it is not dependent on any empirical relation. hence false
4: measuring number of figure and counting chain length comes under mistake which happens due to mis- judgement and carelessness. hence true
5: curvature and refraction error are not random they both are subtractive in nature and they have set relations for finding there corrections hence it is not a random error. hence false
6: gunter chain is 66 foot long with 100 links marked of into group of 10 with brass chain.hence the given statement is false.
7: sum of angles =(n-2)*180
for six sides n=6 then overall sum =720 hence the statement is false
8:hectare is unit of measurement . 1hectare=10^4 m2 hence true
9: on the day temperature is high tape will expand more in comparison to the day when it is low. hence length of tape in higher temperature day will be greater than lower temperature day, hence lower temperature day will measure greater distance in comparison to other. hence it is true
10: no waving of rod does not compensates the error .hence the statement is false.
An example of a systematic error is the effect of temperature on a steel tape. 2....
91. Calculate the temperature error in a 76-ft measurement with a steel surveyor's tape at -10 F when the tape is accurate at 60'F. Show your detailed manual work including equations and intermediate answers.