An 8m steel tape was purchased and advertised as follows : Standard temperature Standard Pull : 24°C 7.5kgs 0.60 kgs 0.049 sq.cm. : Tape weight Cross sectional area 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 Actual pull In addition, the tape was supported on both ends and at midspan 40°C : 13.2kg during all measurements. Note: The modulus of elasticity if the tape is 2.03x10^6 kg/sqcm and the coefficient of thermal expansion is 0.0000116 m/°c Answer the following: **Answers for corrections should be in 3 significant figures. ex. (1.23x10-4) i. 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)?: ii. 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: iii. 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 Standard Pull : 24°C 7.5kgs 0.60 kgs 0.049 sq.cm. : Tape weight Cross sectional area 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 Actual pull In addition, the tape was supported on both ends and at midspan 40°C : 13.2kg during all measurements. Note: The modulus of elasticity if the tape is 2.03x10^6 kg/sqcm and the coefficient of thermal expansion is 0.0000116 m/°c Answer the following: **Answers for corrections should be in 3 significant figures. ex. (1.23x10-4) i. 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)?: ii. 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: iii. 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:
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
Answer the following given questions:
Transcribed Image Text:An 8m steel tape was purchased and advertised as follows:
Standard temperature
:
24°C
Standard Pull
7.5kgs
0.60 kgs
0.049 sq.cm.
:
Tape weight
Cross sectional area
:
:
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
Actual pull
In addition, the tape was supported on both ends and at midspan
:
40°C
13.2kg
:
during all measurements.
Note: The modulus of elasticity if the tape is 2.03x10^6 kg/sqcm and the coefficient of thermal expansion is 0.0000116 m/°C
Answer the following: **Answers for corrections should be in 3
significant figures. ex. (1.23x10-4)
i. 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)?:
ii. 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:
iii. 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:
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