Using examples, describe possible mistakes AND errors involved in taping measurement, discuss methods to correct the mistakes and to reduce the errors.
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Using examples, describe possible mistakes AND errors involved in taping measurement,
discuss methods to correct the mistakes and to reduce the errors.
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- An 8m steel tape was purchased and advertised as follows: Standard temperature : 24°C Standard Pull : 7.5kgs Tape weight : 0.60 kgs Cross sectional area : 0.049 sq.cm. A survey team was required to lay out a rectangular field office measuring 9.5m x 4.75m in the following field conditions: Ambient field temperature : 40°C Actual pull : 13.2kg In addition, the tape was supported on both ends and at midspan during all measurements. ** The modulus of elasticity of the tape is 2.03x106 kg/sqcm and the coefficient of thermal expansion is 0.0000116m/°C Width for laying out: a) Correction due to Temperature? b) Correction due to Pull? c) Correction due to Sag? d) Corrected Length to be laid out?An 8m steel tape was purchased and advertised as follows: Standard temperature : 24°C Standard Pull : 7.5kgs Tape weight : 0.60 kgs Cross sectional area : 0.049 sq.cm. A survey team was required to lay out a rectangular field office measuring 9.5m x 4.75m in the following field conditions: Ambient field temperature : 40°C Actual pull : 13.2kg In addition, the tape was supported on both ends and at midspan during all measurements. ** The modulus of elasticity of the tape is 2.03x106 kg/sqcm and the coefficient of thermal expansion is 0.0000116m/°C Effect field conditions on Tape a) What is the effect of temperature on the tape? (Too Long or Too Short)?: ____________________ b) What is the effect of pull on the tape? (Too Long or Too Short)?: ____________________ c) What is the effect of sag on the tape? (Too Long or Too Short)?: ____________________An 8m steel tape was purchased and advertised as follows: Standard temperature : 24°C Standard Pull : 7.5kgs Tape weight : 0.60 kgs Cross sectional area : 0.049 sq.cm. A survey team was required to lay out a rectangular field office measuring 9.5m x 4.75m in the following field conditions: Ambient field temperature : 40°C Actual pull : 13.2kg In addition, the tape was supported on both ends and at midspan during all measurements. ** The modulus of elasticity of the tape is 2.03x106 kg/sqcm and the coefficient of thermal expansion is 0.0000116m/°C (25 pts) Answer the following: **Answers for corrections should be in 3 significant figures. ex. (1.23x10-4) Length for laying out a) Correction due to Temperature? b) Correction due to pull? c) Correction due to Sag? d) Corrected Length to be laid out?
- An 8m steel tape was purchased and advertised as follows: Standard temperature : 24°C Standard Pull : 7.5kgs Tape weight : 0.60 kgs Cross sectional area : 0.049 sq.cm. A survey team was required to lay out a rectangular field office measuring 9.5m x 4.75m in the following field conditions: Ambient field temperature : 40°C Actual pull : 13.2kg In addition, the tape was supported on both ends and at midspan during all measurements. ** The modulus of elasticity of the tape is 2.03x106 kg/sqcm and the coefficient of thermal expansion is 0.0000116m/°C Length for laying out a) Correction due to Temperature? b) Correction due to Pull? c) Correction due to Sag? d) Corrected Length to be laid out?Cite some factors that can increase the accuracy of the measurement.No estimation is needed when all items are inspected
- Using simple calculation method.Provide complete solution and box your final answer with appropriate unit. 1. What is the total length of the course XY if the rear tape-man holds exactly holds 9 pebbles and 3 pins after measuring the course XY? Assume that one tape length is equivalent to 30m.Show your complete solution. Round off to three decimal places if necessary.
- Accurate measurement is sometimes necessary on the job. What is one reason that this device would be more accurate than a tape measure? Explain your thinking. Many workers carry a table measure in their tools. Why would a tape measure be the best to use in day to day measuring?four decimal places (10 mins pls)What level of accuracy should the estimator pursue in the measurement of work in a takeoff?