76.

77.

78.

79.

80.

81.

82,

88,

In a reinforced conerete retaining wall, a shear key is provided, if the :
(A) Shear stress in vertical stem is excessive
(B) Shear force in toe slab is more than heel slab
(C) Retaining wall is not safe against sliding
(D) Retaining wall is not safe against overturning

The actual thickness of butt weld as compared to the thickness of a plate is usually :

(A) More (B) Less

0 Equal (D) None of the above
Which one of these defects in timber is due to natural forces?

(A) Knot (B) Stain

(C) Split (D) Bow

In a uniformly distributed loading, aprestressed rectangular beam should be :
(^) Straight below centroidal axis
(B) Parabolic with convexity downward
(ಲ) Parabolic with convexity upward
(D) Straight above centroidal axis

For eylindrical tanks fixed at the base :
(^) Bending moment and hoop tension are developed
(B) Only hoop tension will be developed
(C) Only bending moment will be developed
(D) None of the above

According to Indian Standard Classification soils more than half the coarse fraction
which is larger than 75 micron IS Sieve and smaller than 4.75 mm IS Sieve is
designated as which of the following?

(A) Gravels (B) Sand

(0) Clay 0) Silt

According 1௦ Darcy's Law which of the following is defined as the average velocity of
flow that will occur through the total eross sectional area of soil under Unit hydraulie

gradient?
(A) Coefficient of permeability (B) Coefficient of percolation
(C) Seepage velocity (D) Coefficient of transmissibility

In which of the following conditions, a clay is said to be pre-consolidated?

(ಯ) If the present overburden pressure is equal to the existing overburden
pressure

(B) Ifit has never been subjected to an effective pressure greater than existing
overburden pressure

(C) Ifitisnot fully consolidated under existing overburden pressure

(D) If it has been subjected to a pressure in excess of its present overburden
pressure

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