त्र. An offset is laid out 2° from its true direction on the field. If the scale of plotting is 10 m to
1 em, find the maximum length of the ೧೫೧% 50 that the displacement of the point on the
paper may not exceed 0.25 mm?

(ಗ) 5.0m (B) 6.12m
(C) 7.16m (D) 816.
8. The following perpendicular ०६००३ taken at 10 m intervals from a survey line to an
irregular boundary line :
3.26, 5.6, 4.2, 6.65, 8.75, 6.2, 3.25,4.2, 5.65. Calculate the area by trapezoidal rule
(A) 433 m? (B) 439.67 m?
ര 424.44m? യ 440 m?

9. A square footing 2.5 m x 2.5 m is built in a homogeneous bed of sand of unit weight 20 kN/m?*
and having an angle of shearing resistance ല്‌ 36°. The depth of the base വ്‌ the footing 18
1.6 m below the ground surface. Calculate the safe load that can be carried by a footing with
a factor of safety 3 against complete shear failure?
Bearing capacity factors N, =65.4, N, =49.4 and N, =54.0

ல 4825 kN (ए) 4927.5 kN
(09 5319.6 kN (D) 5462.5kN
10. . Hydrophobic cement is obtained by grinding ordinary Portland cement clinker with :
(ക) Hydrochloric acid (B) Oleic acid
(ര Glicerine (D) Acetol
11. ன much initial slump is required for a concrete mix to be fluidised by plasticizers or super
plasticizers?
(ಹಿ) 2to3cm (8) 2to3mm
(09 800 (D) 10 mm

12. 150: 800-2007 limits the values of width- thickness ratios of the elements of a steel section to
4 place a check on :

(ക) Bending buckling (ಔ) Torsicnal buckling
(C) Flexural torsional buckling (D) Local buckling
13. The shape factor of a square of side ‘a’ with its diagonal parallel ‏فط م‎ 77 axisis :
(^ 2 ® 17
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