A steel rod Is stretched two rigid wallsand carries a tensile load of 6000 N to20°C. Coefficient of thermal expansiona = 11.7 x 10-5 /C and modulus ofelastičity 200000 MPa.7. Which of the following gives theminimum diameter of the rod if theallowable stress is not to exceed 140MPa at -25°C.a. 15 mmC. 16 mmb. 17 mmd. 18 mm8. Which of the following gives thetotal elongation of the steel rod if it hasa length of 1.5m.a. 1.00 mmС. 1.02 mmb. 1.04 mmd. 1.06 mm9. Which of the following gives thestrain of the steel rod.a. 0.00067b. 0.00071C. 0.00069d. 0.00073

σ=αET+PA140=11.7×10-6200,00020+25+6000AA=172.9mm2d=4172.9mm2πd=15mm

Answered: city 200000 MPa. hich of the following…

city 200000 MPa. hich of the following give um diameter of the rod able stress is not to exce at -25°C. 15 mm 16 mm b. 17 m d. 18 m Thich of the following give elongation of the steel rod i

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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