A steel bar 600mm long and having 30mm diameter, is turned down to 25mm diameter

Sail E0 Webinar

Question

A steel bar 600mm long and having 30mm diameter, is turned down to 25mm diameter for one fourth of its length. It is heated at 30 C above room temperature, clamped at both ends and then allowed to cool to room temperature. If the distance between the clamps is unchanged, the maximum stress in the bar ( α = 12.5 x 10⁻⁶ per C and E = 200 GN/m²) is

Options:

A . 25 MN/m²

B . 40 MN/m²

C . 50 MN/m²

D . 75 MN/m²

Answer: Option D
Answer: (d).75 MN/m²

Was this answer helpful ?

Next Question

Submit Solution

More Questions on This Topic :

Question 1. Which test is conducted to measure the endurance limit of the material?....

Question 2. What is the factor of safety?....

Question 3. What is the process of heating the metal in the furnance to a temperature slightly above the upper critical temperature ....the upper critical temperature and cooling slowly In the furnance.

Question 4. What is the process in which the metal is cooled rapidly in water after heating the metal above the lower critical tempe....lower critical temperature to increase the hardness of the material?

Question 5. Photo stress method is ___________....

Question 6. A composite bar of two sections of equal length and equal diameter is under an axial pull of 10kN. What will be the stre....10kN. What will be the stresses in the two sections?

Question 7. A composite bar of two sections of equal length and given diameter is under an axial pull of 15kN. What will be the stre....will be the stresses in the two sections in N/mm²?

Question 8. A composite bar of two sections of unequal length and equal diameter is under an axial pull of 10kN. What will be the st....10kN. What will be the stresses in the two sections?

Question 9. Which law states the when a number of loads are acting on a body, the resulting strain, according to principle of superp....be the algebraic sum of strains caused by individual loads?

Question 10. How the total strain in any body subjected to different loads at different sections can be calculated?....

Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI

Tabulation - Test Paper 2 Data Interpretation Reasoning & DI

Test Paper 1 Direction Sense Test Reasoning & DI

ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0

GFM Combined 1 Free Revision Test SAIL JO E-0