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An Invar tape, 50 m in length, standardized at 20° C temperature and 10 kg pull, is used to base line. The correction per tap length, if at the time of measurement the temperature was 30° and the coefficient of linear expansion of the tap was 1 × 10–6 per°C, will be
  • a)
    0.0200 m
  • b)
    0.0050 m
  • c)
    0.0005 m
  • d)
    0.0001 m
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
An Invar tape, 50 m in length, standardized at 20° C temperature a...
Correction for temperature 

Ct = L ∝ ( Tm - To)

∝ = Co-efficient of thermal expansion

Tm = Mean temperature in the field during measurement

To = the standard temperature in the field during 

L = measured length

Ct = 1 x 10-6 (30 - 20) x 50

= 0.0005 m 
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Most Upvoted Answer
An Invar tape, 50 m in length, standardized at 20° C temperature a...
°C, is measured at a temperature of 30°C. If the measured length is 50.015 m, what is the coefficient of linear expansion of the material?

The formula for the coefficient of linear expansion is:

α = (ΔL / L₀) / ΔT

where:
α = coefficient of linear expansion
ΔL = change in length
L₀ = original length
ΔT = change in temperature

In this problem, we know that:
L₀ = 50 m
ΔT = 30°C - 20°C = 10°C
ΔL = 50.015 m - 50 m = 0.015 m

Substituting these values into the formula, we get:

α = (0.015 m / 50 m) / 10°C
α = 3.0 x 10^-6 / °C

Therefore, the coefficient of linear expansion of the Invar tape is 3.0 x 10^-6 / °C.
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An Invar tape, 50 m in length, standardized at 20° C temperature and 10 kg pull, is used to base line. The correction per tap length, if at the time of measurement the temperature was 30° and the coefficient of linear expansion of the tap was 1 × 10–6 per°C, will bea)0.0200 mb)0.0050 mc)0.0005 md)0.0001 mCorrect answer is option 'C'. Can you explain this answer?
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An Invar tape, 50 m in length, standardized at 20° C temperature and 10 kg pull, is used to base line. The correction per tap length, if at the time of measurement the temperature was 30° and the coefficient of linear expansion of the tap was 1 × 10–6 per°C, will bea)0.0200 mb)0.0050 mc)0.0005 md)0.0001 mCorrect answer is option 'C'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about An Invar tape, 50 m in length, standardized at 20° C temperature and 10 kg pull, is used to base line. The correction per tap length, if at the time of measurement the temperature was 30° and the coefficient of linear expansion of the tap was 1 × 10–6 per°C, will bea)0.0200 mb)0.0050 mc)0.0005 md)0.0001 mCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An Invar tape, 50 m in length, standardized at 20° C temperature and 10 kg pull, is used to base line. The correction per tap length, if at the time of measurement the temperature was 30° and the coefficient of linear expansion of the tap was 1 × 10–6 per°C, will bea)0.0200 mb)0.0050 mc)0.0005 md)0.0001 mCorrect answer is option 'C'. Can you explain this answer?.
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