21. The Poisson’s ratio for steel varies from-
A. 0.23 to 0.27
B. 0.27 to 0.30
C. 0.31 to 0.36
D. 0.36 to 0.40
22. The bending moment on a section is maximum where shear force is-
A. changing sign
B. maximum
C. minimum
D. zero
23. The stress at which the extension of the material takes place more quickly as compared to the increase in load is called-
A. elastic limit
B. ultimate point
C. yield point
D. breaking point
24. The stress developed in the material without any permanent set is known as-
A. ultimate stress
B. breaking stress
C. yield stress
D. elastic limit
Read Also- Physical Quantities and Measurements
25. When a column is subjected to an eccentric load then the stress induced in the column will be-
A. direct stress only
B. shear stress only
C. bending stress only
D. direct and bending stress both