[Solved] Consider a 250mmx15mmx10mm steel bar which is free to expand is heated from 15C to 40C. what will be developed?

McqMate

Q.	Consider a 250mmx15mmx10mm steel bar which is free to expand is heated from 15C to 40C. what will be developed?
A.	compressive stress
B.	tensile stress
C.	shear stress
D.	no stress
Answer» D. no stress
Explanation: if we resist to expand then only stress will develop. here the bar is free to expand so there will be no stress.

564

0

Do you find this helpful?

4

View all MCQs in

Design of Machine Elements

Discussion

No comments yet

Related MCQs

The safe stress for a hollow steel column which carries an axial load of 2100 kN is 125 MN/m2. if the external diameter of the column is 30cm, what will be the internal diameter?
Two steel rods connected by cotter joint are subjected to 50 kN load each. What is the minimum diameter required of the rods? (Given: Yielding Stress= 400N/mm² ; Factor of Safety=6)
In joining steel plate and asbestos, welding is preferred over riveting.
The material known as high carbon high copper chrome silicon cast steel is used for making
On bending of a beam, which is the layer which is neither elongated nor shortened?
Which process allows controlling grain structure of the product?
In forging, metal is in which of the following stage?
Among casting, forging and forging which has the slowest rate of production?
Which of the following is incorrect about tolerances?
Quality control charts doesn’t depend on which factor?