# Civil Engineering - Strength of Materials

### Exercise :: Strength of Materials - Section 3

36.

In a three hinged arch, the bending moment will be zero

 A. at right hinge only B. at left hinge only C. at both right and left hinges D. at all the three hinges.

Explanation:

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37.

The ratio of the tensile stress developed in the wall of a boiler in the circumferential direction to the tensile stress in the axial direction, is

 A. 4 B. 3 C. 2 D. 1

Explanation:

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38.

The force in the member DE of the truss shown in below figure will be

 A. zero B. 2 W tensile C. 2 W compressive D. 4 W compressive E. 4 W tensile.

Explanation:

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39.

In a shaft shear stress intensity at a point is not

 A. directly proportional to the distance from the axis B. inversely proportional to the distance from the axis C. inversely proportional to the polar moment of inertia D. directly proportional to the applied torque.

Explanation:

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40.

Along the neutral axis of a simply supported beam

 A. fibres do not undergo strain B. fibres undergo minimum strain C. fibres undergo maximum strain D. none of these.