79.

80.

81.

82.

83.

84.

85.

86.

87.

88.

89.

90.

If a column of 5 m is effectively held in position and restrained against rotation at one
end and, at the other restrained against rotation but not held in position, recommended
value of effective length to considered in design will be:

(A) 6m (8) 7.5m

(ಲ) 5௩ (D) 325൩

Which of the following equation is correct for bolt subjected to combined shear and

tension ?
(७) (Vsb/Vdb)? + (Tsb/Tdb)? > 1
(0) (Vsb/Vdb) + (Tsb/Tdb) > 1
Typical values of specific gravity of solid pa

(A) 0
(൭ 22 2.62

(B) (Vsb/Vdb)? + (Tsb/Tdb)? > 1
(0) (Vsb/Vdb) + (Tsb/Tdb) > 1
rticles of silty sands are about

൫ 2.0to2.18
(D) 2.66 to 2.7

The soil has [360 = 0.08 and 10 = 0.004. Then the uniformity co-efficient of soil is

(A) 20 (B) 25

Consistency index shows the nearness of the
(^) Natural water content
(C) Plastic limit

Co-efficient of permeability of an unsaturate
(^^) Variable head permeability test

(C) Computation from the particle size

(C) 42 (D) 67

water content of the soil to its
(B) Liquid limit
(D) Shrinkage limit
d soil can be determined by using
(B) Pumping in tests
൯൩) Capillarity permeability test

The critical gradient at which the specific gravity of solids as 2.67, and the void ratio of

0.67 is

(A) 1 (B) 1.5

Primary consolidation of soils occurs due to
(^) Expulsion of air voids
(B) Expulsion of water from the voi
(C) Compression of solid particles
(D) Re-adjustment of soil particles

Type of failure occur in loose sands during ടി
(^) Plastic (B) Brittle

Select the incorrect statement.
(A) Bearing capacity of a soil depen
(B) Bearing capacity of a soil depen
(C) Bearing capacity of a soil depen
(D) Bearing capacity of a soil is inde

The minimum spacing between compaction
(A) 156 (B) 2d

Rise of water table in cohesionless soils மு

(0 2 (D) 2.5

2

hearing stage of shear strength test 18
(C) Compression (D) Shear

5 upon the amount and direction of load.
$ on the type of soil.

5 upon shape and size of footing.

endent of rate of loading.

iles in terms of their diameter d is

(൭ 25d (D) 1d

bearing capacity approximately by
(A) 25% (B) 50%

“B

to ground surface reduces the net ultimate
(C) 75% (D) 90%
[P.T.O.]