12-In simply supported beam of rectangular cross section, the bending stress is ____ and shear stress is ____ at neutral axis.
(A) Zero, Maximum
(B) Maximum, Zero
(C) Zero, Zero
(D) Maximum, Maximum
13-The Clapeyron’s theorem is used for analysis of _______.
(A) Two hinged arch
(B) Fixed beam
(C) Continuous beam
(D) Thin cylinders
14- The ratio of maximum bending stress to maximum shear stress on the cross-section when a shaft is simultaneously subjected to torque T and bending moment M is
(A) T/M
(B) M/T
(C) 2T/M
(D) 2M/T
15-Which of the following represents the bending at a section of the beam?
(A) EI (d4y/dx4)
(B) EI (d3y/dx3)
(C) EI (d2y/dx2)
(D) EI (dy/dx)
16-For Rectangular section of simply supported beam the maximum shear stress (Tmax) is………times average shear stress (Tavg).
(A) 1.3
(B) 1.0
(C) 1.5
(D) 2.0
17-The first derivative of deflection at any point on a beam defines _______ at that location.
(A) Slope of the beam
(B) Bending moment of beam
(C) Shear force of the beam
(D) Load intensity of beam
18-The deflection of the free end of a cantilever of span L having a point load W at the mid-span is
(A) WL3 /3EI
(B) 5WL3 /24EI
(C) 5WL3 /48EI
(D) WL3 /24EI
19-If the magnitude of shear force is constant, then the magnitude of the slope of bending moment curve is
(A) zero
(B) increasing
(C) decreasing
(D) constant
20-In case of rolled steel beam, shear force is mainly resisted by ______
(A) Web
(B) Flange
(C) Web and flange
(D) Weld
21-Moment of resistance of a beam at any section _______ with _______ in flexural rigidity
(A) Increases, decrease
(B) Decreases, increase
(C) Increases, increase
(D) Constant, increase
22-Slope at the supports of a simply supported beam of span L with a uniformly distributed load of intensity w is
(A) wL3 /12EI
(B) wL3 /24EI
(C) wL3 /48EI
(D) wL3 /96EI
ANSWERS:
12-(A), 13-(C), 14-(D), 15-(C), 16-(C), 17-(A), 18-(C), 19-(D), 20-(A), 21-(C), 22-(B)