Civil Engineering MCQs

Page No. 198

A three hinged arch is generally hinged at its supports and__________________?


a At one quarter span


bAt the crown


cAnywhere in the rib


dNone of these


View Answer Anywhere in the rib

For permissible shear stress fs, the torque transmitted by a thin tube of mean diameter D and wall thickness t, is________________?


a( /2) t fs


b ( /2) t fs


cD2t fs


d( /4) fs


View Answer ( /2) t fs

Stress may be defined as_________________?


aForce per unit length


bForce per unit volume


cForce per unit area


dNone of these


View Answer Force per unit area

The equivalent length of a column of length L, having both the ends hinged, is_______________?


a2L


bL


cL/2


d3L


View Answer L

There are two hinged semicircular arches A, B and C of radii 5 m, 7.5 m and 10 m respectively and each carries a concentrated load W at their crowns. The horizontal thrust at their supports will be in the ratio of_______________?


a1 : 1½ : 2


b2 : 1½ : 1


c1 : 1 : 2


d None of these


View Answer 1 : 1 : 2

For beams of uniform strength, if depth is constant______________?


aWidth b M


b Width b M


cWidth b 3 M


dWidth b 1/M


View Answer Width b M

The maximum magnitude of shear stress due to shear force F on a rectangular section of area A at the neutral axis, is__________________?


aF/A


bF/2A


c3F/2A


d 2F/3A


View Answer 3F/2A

In plastic analysis, the shape factor for a circular section, is_________________?


a1.5


b1.6


c1.7


d1.75


View Answer 1.7

The ratio of the deflections of the free end of a cantilever due to an isolated load at 1/3rd and 2/3rd of the span, is________________?


a 1/7


b 2/7


c 3/7


d2/5


View Answer 2/7

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


b1.5


c2.0


d3.0


View Answer 3.0

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