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Match Column — | and Column — Il and choose the correct option :

Column -1 Column - Il
a. Rankine’s theory i. Total stress analysis
b. Boussinesq’s formula ர்‌. Plastic equilibrium
c. Coulomb’s theory iii. Elastic continuum
d. Friction circle method iv. Sliding wedge
A) a-ii, b -i, c—iv, d-iii 8) a-iv, b-i,c-ii, d-iii
C) a-iv, b-iii, c-ii, d-i D) a-ii, b- iii, c -iv, d-i

The ultimate bearing capacity of a strip footing resting on sand is reduced by half
when the water level rises to

A) base of footing B) ground surface

C) 1.5 times width of foundation D) 1.5 times depth of foundation

A pile is driven into homogeneous consolidated clay deposit with unconfined
compression strength of 50 kN/m2, then ultimate tip resistance of the pile will be

A) 235 kN/m? B) 220 kN/m? ©) 225 kN/m? ட) 215 kN/m?

A vertical summit curve is formed by two gradients of +4.6% and —5.0% and the
corresponding overtaking sight distance is 110 m. The length of the curve length
which is greater than overtaking sight distance to be provided is

A) 130m B) 120m C) 125m D) 121m

Consider the following statements :

1. In rotary intersection, conflict points are reduced by merging and diverging of
vehicles.

2. Traffic rotary is an intersection at grade type.

3. Rotary intersection is suitable if there are more than seven intersecting roads.

Which of these statements is/are correct ?

A) 1 only 8) 18೧62 0) 28763 0) 1, 2 ४1७ 3

The typical pavement failure observed in bituminous overlays provided over
existing cement concrete pavements is

A) Reflection cracking B) Alligator cracking

C) Shear failure cracking D) Longitudinal cracking

If the ruling gradient is 1 in 100 for a metre gauged railway track, the allowable
ruling gradient in percentage for a 5° curve in the track will be
A) 0.90 B) 0.80 C) 0.85 D) 0.75