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Which of the below tar type – application pairs matched correctly?

Which of the below tar type – application pairs matched correctly? Correct Answer RT-2 – standard surface painting

Tar can be of five types based on its viscosity. They are RT-1, RT-2, RT-3, RT-4 and RT-5. RT-1 has the least viscosity and is used for surface painting in extremely cold weather, RT-2 is used for standard surface painting in Indian climate, RT-3 is used for renewal coats, RT-4 is used for premixing tar macadam in the base course and RT-5 is used for grouting.

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