SSC JE Civil Engineering 23-Mar-2021 Shift 1 Paper

Question : 131 of 200

Marks: +1, -0

Select the correct option with regard to the following statements (S1, S2) pertaining to pavements.
S1: Present serviceability index is used for the functional evaluation of pavement surface condition.
S2: Rigid pavements are less affected by temperature variations than flexible pavements.

Both statements S1 and S2 are true
Statement S1 is false and Statement S2 is true
Statement S1 is true and Statement S2 is false
Both statements S1 and S2 are false

Validate

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Flexible pavement	Rigid Pavement
Load is transferred from top to bottom by grain to grain contact.	Load is transferred through slab action
Low or negligible flexural strength.	High flexural strength.
Joints are absent.	Expansion and contraction joints are provided.
Low initial cot but high maintenance cost.	High Initial cost but low maintenance cost.
It includes- Surface, base, sub-base and sub grade layers.	It includes – Concrete slab, base course and subgrade layers.
Deformation in the top layers is transferred to under- laid layers	Deformation is only in the top layer of the concrete slab.
Less suitable for stage construction	More Suitable for stage construction.
Very less effect of temperature stress.	Effected by temperature and frictional stresses.