Engineering Fundamentals: An Introduction to Engineering
6th Edition
ISBN: 9780357112311
Author: Saeed Moaveni
Publisher: Cengage Learning US
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Chapter 11, Problem 42P
To determine
Determine the thermal conductivity of the unknown sample.
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Define by which curve the relation between amount of energy absorbed and test temperature
is shown, why?
D
Energy
absorbed
C
A
B
Temperature
Problem 1.
A steel tape with a coefficient of thermal expansion of 0.0000116/°C is known to be 50 m long at
20°C. The tape was used to measure a line that is 642.90 m long when the temperature was 35°C.
a) Calculate the temperature correction per tape length.
b) Calculate the correction for the measured line.
c) Calculate the correct length of the measured line.
1-41. The constants B = 1.357(10-6) N-s/(m² -K!/2) and
C = 78.84 K have been used in the empirical Sutherland
equation to determine the viscosity of air at standard
atmospheric pressure. With these constants, compare the
results of using this equation with those tabulated in
Appendix A for temperatures of T = 10°C and T = 80°C.
%3D
Chapter 11 Solutions
Engineering Fundamentals: An Introduction to Engineering
Ch. 11.2 - Prob. 1BYGCh. 11.2 - Prob. 2BYGCh. 11.2 - Prob. 3BYGCh. 11.2 - Prob. 4BYGCh. 11.2 - Prob. 5BYGCh. 11.2 - Prob. BYGVCh. 11.4 - Prob. 1BYGCh. 11.4 - Prob. 2BYGCh. 11.4 - Prob. 3BYGCh. 11.4 - Prob. 4BYG
Ch. 11.4 - Prob. BYGVCh. 11.6 - Prob. 1BYGCh. 11.6 - Prob. 2BYGCh. 11.6 - Prob. 3BYGCh. 11.6 - Prob. 4BYGCh. 11.6 - Prob. BYGVCh. 11 - Prob. 1PCh. 11 - Prob. 2PCh. 11 - Alcohol thermometers can measure temperatures in...Ch. 11 - Prob. 4PCh. 11 - Prob. 5PCh. 11 - Prob. 6PCh. 11 - Prob. 7PCh. 11 - Prob. 8PCh. 11 - Calculate the R-value for the following materials:...Ch. 11 - Calculate the thermal resistance due to convection...Ch. 11 - Prob. 11PCh. 11 - Prob. 12PCh. 11 - Prob. 13PCh. 11 - Estimate the change in the length of a power...Ch. 11 - Calculate the change in 5 m long copper wire when...Ch. 11 - Prob. 16PCh. 11 - Prob. 17PCh. 11 - Prob. 19PCh. 11 - Prob. 20PCh. 11 - Prob. 23PCh. 11 - Prob. 24PCh. 11 - Prob. 26PCh. 11 - Prob. 27PCh. 11 - Prob. 28PCh. 11 - Prob. 29PCh. 11 - Prob. 30PCh. 11 - Prob. 31PCh. 11 - Prob. 32PCh. 11 - Prob. 33PCh. 11 - Prob. 34PCh. 11 - Prob. 35PCh. 11 - For Problems 11.11, 11.12, and 11.13, calculate...Ch. 11 - Prob. 37PCh. 11 - Prob. 38PCh. 11 - Prob. 39PCh. 11 - Prob. 40PCh. 11 - Prob. 41PCh. 11 - Prob. 42PCh. 11 - Prob. 43PCh. 11 - Prob. 44PCh. 11 - Prob. 45PCh. 11 - Prob. 46PCh. 11 - Prob. 47PCh. 11 - Prob. 48PCh. 11 - Prob. 49PCh. 11 - Prob. 51PCh. 11 - Prob. 52PCh. 11 - Prob. 53PCh. 11 - Prob. 54PCh. 11 - Prob. 55P
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- A steel tape, with a coefficient of linear expansion of 0.0000116/C, is known to be 50 meters long at 30°C. The tape was used to measure a line was found to be 15532.28 meters long when the temperature was 27°C. Determine the following: a. Temperature correction per tape length b. Temperature correction for the measured line c. Correct length of the linearrow_forwardA steel tape, with a coefficient of linear expansion of 0.0000116/C, is known to be 100 meters long at 20°C. The tape was used to measure a line was found to be 1532.28 meters long when the temperature was 37°C. Determine the following: Temperature correction per tape length Temperature correction for the measured line Correct length of the linearrow_forwardA 50-m steel tape standardized at 20° was found to be 50.16 m long. This tape was held horizontal to measure a line from A to B in three segments. The data listed in the following table were recorded. Apply corrections for tape length and temperature change to determine the correct length of the line. The coefficient of thermal expansion and contraction of the tape is 0.000116 /unit length/degree Celsius. Section Measured distance (m) Temperature (C°) 35 I 50.00 II 50.00 37 III 31.215 40arrow_forward
- 2. In the figure shown, determine the difference in pressure between points A and B. 0.82- Air s = 0.0012 Kerosene, s = 3 Benzene S- 0.88 B 250 mm 100 mm 200 mm 150 mm 90 mm Water Mercury ww 00b ww OLEarrow_forwardFluid Mechanics / Static Fluid Choose the correct answer Dynamic Viscosity of air ? d. Decrease with temperature f. Both b and d a. 1000*lower than the Dynamic Viscosity of water c. Increase with temperature e. Both c and d b. 1000*higher than the Dynamic Viscosity of waterarrow_forward1. Describe the basic principles of dilatometer testing. 2. List the main component in dilatometer instruments ( 3. Derived the formula for coefficient of thermal expansion ( 4. Demonstrate how CTE can be measured from dilatometric curve Part 2: CO4 5. Give short description for each given Figure: ( 1.0- Parent glass Glass-ceramic 0.8 S0.6- 0.4- 0.2- 0.0- 200 400 600 800 Temperature (C) Figure 1: Dilatometric curve of parent glass and glass-ceramic sample 0.008 40Z60A 50Z50A 60Z40A 80Z70A 0.007 0.006 0.005 0.004 0.003 0.002 0.001 200 400 600 800 1000 1200 1400 Temperature (°C) Figure 2: Dilatometric curves for each sintered sample, containing different zircon- alumina weight proportions (%) '7/7P dL/Lo*10-6arrow_forward
- d) Calculate the change in temperature. Indicate increase or decrease in temperature.arrow_forward1. For the computation of density of liquids to be tested, use the following values of density of water for the corresponding temperature: Show your Solution Temperature Density in kg/m 40°C 992.2 30°C 995.65 25°C 997.04 22°C 997.77 20°C 998.2 15°C 999.1 RESULTS: Temperature °C Scale Reading = Specific Gravity, s Liquid Dishwashing Glycerin %3D 1.06 1.26 Liquid Dishwashing Temperature 30°C Glycerin 29°C Liquid Density, p g/ml kg/m?arrow_forward3. A combined separating and wire-drawing calorimeter was used to measure the dryness fraction of steam supplied to a steam engine. The following observations were made: Pressure of steam in steam pipe Temperature of steam inside the wire-drawing calorimeter 110 deg C Pressure of steam inside the wire-drawing calorimeter 136mm of water Barometer reading Steam used by the steam engine Water collected in the separating calorimeter Steam condensed on leaving the wire-drawing calorimeter 7bar 750mm of mercury 55kg 1kg 6.5kgarrow_forward
- 2. In lesson 2, you added ionic compounds to water and observed a temperature change that occurred. The first investigation asked you to use 3 grams of an ionic compound in 20 mLs of water. You repeated this process for five different ionic compounds and recorded the temperature changes that occurred for each ionic compound. Possible variables in this experiment include: The ionic compound Amount of the ionic compound in grams III. I. II. Amount of water used in mLs IV. Temperature change of the water Which of these are controlled variables in the described experiment? All of the above I, II, and III I only Il and IIIarrow_forwardIn a relative density test, the following values are recorded: Dry mass = 3017 g Submerged mass = 1050 g Saturated, Surface Dry (SSD) mass = 3033 g Find the relative density values (RDapparent, RDbulk, and RDSSD) by first completing the phase diagram. (write answers in the phase diagram to the nearest whole number. Write the relative density answers to two decimal places.) VOLUME MASS Va = cm3 AIR Ma = grams Vw = cm3 WATER Mw = grams Vs = cm3 SOLIDS Ms = grams VT = cm3 MT = grams RDapparent = RDbulk = RDSSD =arrow_forwardThe pressure on a closed tank reads 68.86 kPa. What is the equivalent height in terms of Mercury having a sp.gr of 13.6? Do not write the unit. You will only input the numerical answer in the space provided. Unit of the Correct Answer: m Decimal Places required in the final answer: 3arrow_forward
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