A. BD²/6
B. BD3/6
C. BD3/12
D. B²D/6
Related Mcqs:
- The radius of gyration of a rectangular section (depth D, width B) from a centroidal axis parallel to the width is__________________?
A. D/2
B. D
C. D
D. D - Y are the bending moment, moment of inertia, radius of curvature, modulus of If M, I, R, E, F, and elasticity stress and the depth of the neutral axis at section, then________________?
A. M/I = R/E = F/Y
B. I/M = R/E = F/Y
C. M/I = E/R = E/Y
D. M/I = E/R = Y/F - If Ix and Iy are the moments of inertia of a section about X and Y axes, the polar moment of inertia of the section, is_________________?
A. (IX + IY)/2
B. (IX – IY)/2
C. IX + IY
D. (I /I ) - The ratio of moments of inertia of a triangular section about its base and about a centroidal axis parallel to its base, is_________________?
A. 1.0
B. 1.5
C. 2.0
D. 3.0 - The moment of inertia of a triangular section (height h, base b) about its base, is_______________?
A. bh²/12
B. b²h/12
C. bh3/12
D. b3h/12 - A close coil helical spring when subjected to a moment M having its axis along the axis of the helix_________________?
A. It is subjected to pure bending
B. Its mean diameter will decrease
C. Its number of coils will increase
D. All the above - The locus of the moment of inertia about inclined axes to the principal axis, is______________?
A. Straight line
B. Parabola
C. Circle
D. Ellipse - At any point of a beam, the section modulus may be obtained by dividing the moment of inertia of the section by_________________?
A. Depth of the section
B. Depth of the neutral axis
C. Maximum tensile stress at the section
D. Maximum compressive stress at the section - The moment of inertia of a circular section about any diameter D, is______________?
A. /64
B. 4/32
C. 3/64
D. 4/64 - For a strongest rectangular beam cut from a circular log, the ratio of the width and depth, is________________?
A. 0.303
B. 0.404
C. 0.505
D. 0.707
