# SSC JE Civil Engineering Preliminary Exam in January 2018 | Practice test Day – 39

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1.

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

2.

A composite beam is composed of two equal strips one of brass and other of steel. If the temperature is raised

3.

The load on a spring per unit deflection, is called

4.

The forces acting normally on the cross section of a bar shown in the given figure introduce

5.

The yield moment of a cross section is defined as the moment that will just produce the yield stress in

6.

The ratio of the stresses produced by a suddenly applied load and by a gradually applied load on a  bar, is

7.

Maximum principal stress theory for the failure of a material at elastic point, is known

8.

In case of a simply supported I-section beam of span L and loaded with a central load W, the length of elasto-plastic zone of the plastic hinge, is

9.

Slenderness ratio of a long column, is

10.

If E, N, K and 1/m are modulus of elasticity, modulus of rigidity. Bulk modulus and Poisson ratio of  the material, the following relationship holds good

11.

A cantilever of length is subjected to a bending moment at its free end. If EI is the flexural rigidity of the section, the deflection of the free end, is

12.

If a three hinged parabolic arch, (span l, rise h) is carrying a uniformly distributed load w/unit length over the entire span,

13.

A simply supported beam A carries a point load at its mid span. Another identical beam B carries  the same load but uniformly distributed over the entire span. The ratio of the maximum  deflections of the beams A and B, will be

14.

Maximum strain theory for the failure of a material at the elastic limit, is known as

15.

Maximum shear stress theory for the failure of a material at the elastic limit, is known

16.

The forces acting on the bar as shown in the given figure introduce

17.

Pick up the incorrect statement from the following: The torsional resistance of a shaft is directly proportional to

18.

The ratio of circumferential stress to the longitudinal stress in the walls of a cylindrical shell, due  to flowing liquid, is

19.

A simply supported beam carries varying load from zero at one end and w at the other end. If the length of the beam is a, the maximum bending moment will be

20.

A close coil helical spring when subjected to a moment M having its axis along the axis of the helix

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