13.

14.

15.

16.

17.

18.

19.

20.

21.

For the principal axes of a section
(A) Sum of moment of inertia is zero.
(B) Difference of moment of inertia is zero.
(C) Product of inertia is zero.
(D) None of these.

The maximum compressive strain in concrete at the outermost compression fibre in
bending is

(A) 2 (B) 0.0035

(C) 0.67 (D) 0.42

According to IS 456-2000 the modulus of elasticity of concrete is
(A) directly proportional to compressive strength
(0) inversely proportional to compressive strength
(C) directly proportional to square root of compressive strength
(0) inversely proportional to square root of compressive strength

For a simply supported beam of span 8 m, the minimum effective depth to satisfy the
vertical deflection limits should be
(A) 400 mm (B) 310mm
(C) 450 mm (D) 600mm

Out of the following, select the most suitable type of bolt that can be used, when the bolts
are subjected to reversal of stresses.
(^) Ordinary unfinished bolt (8) Flange bolt

(C) Turned and fitted bolt (D) High strength bolt

Horizontal stiffener is provided in a plate girder to safe guard against
(A) Shear buckling of web plate (B) Compression buckling of web plate
(C) Yielding (D) All of the above

The main function of alumina in brick earth is
(^) To impart plasticity (B) 10 make the brick durable
(0) To prevent shrinkage (D) To make the brick impermeable

Le-Chateliers equipment is used for determining the
(A) Setting time of cement (B) Soundness of cement
(C) Tensile strength of cement (D) Compressive strength of cement

A crack is formed ina RCC beam, when the material exceeds
(A) modulus of elasticity (B) compressive stress
(C) modulus of rupture (D) None of the above
[P.T.O.]