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A railroad track is laid at a temperature of 10°C with gaps of 0.008 m between the ends of the rails. The rails are 20 m long. Coefficient of thermal expansion is 11.25 x 10/°C. Modulus of elasticity = 200000 MPa. Which of the following gives the thermal stress if they are prevented from buckling?

A railroad track is laid at a temperature of 10°C with gaps of 0.008 m between the ends of the rails. The rails are 20 m long. Coefficient of thermal expansion is 11.25 x 10/°C. Modulus of elasticity = 200000 MPa. Which of the following gives the thermal stress if they are prevented from buckling?

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A railroad track is laid at a temperature of 10°C with gaps of 0.008 m between the ends of the rails. The rails are 20 m long. Coefficient of thermal expansion is 11.25 x 106/°C. Modulus of elasticity = 200000 MPa. Which of the following gives the actual deformation of the rails that will result from a temp. of 65°C? %3D Select one: O a. 0.0124 m O b. 0.0214 m O c. 0.0142 m O d. 0.0022 m
Transcribed Image Text:A railroad track is laid at a temperature of 10°C with gaps of 0.008 m between the ends of the rails. The rails are 20 m long. Coefficient of thermal expansion is 11.25 x 106/°C. Modulus of elasticity = 200000 MPa. Which of the following gives the actual deformation of the rails that will result from a temp. of 65°C? %3D Select one: O a. 0.0124 m O b. 0.0214 m O c. 0.0142 m O d. 0.0022 m
A railroad track is laid at a temperature of 10°C with gaps of 0.008 m between the ends of the rails. The rails are 20 m long. Coefficient of thermal expansion is 11.25 x 106/°C. Modulus of elasticity = 200000 MPa. Which of the following gives the thermal stress if they are prevented from buckling? Select one: O a. 14 MPa O b. 22 MPa O c. 44 MPa O d. 12 MPa Next page
Transcribed Image Text:A railroad track is laid at a temperature of 10°C with gaps of 0.008 m between the ends of the rails. The rails are 20 m long. Coefficient of thermal expansion is 11.25 x 106/°C. Modulus of elasticity = 200000 MPa. Which of the following gives the thermal stress if they are prevented from buckling? Select one: O a. 14 MPa O b. 22 MPa O c. 44 MPa O d. 12 MPa Next page
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