The most useless aggregates is one whose surface texture is 

Find odd man out.             6, 9, 15, 21, 24, 28, 30 

Any none Nepali engineer desiring to work in Nepal may apply for registration under 

Which country has initiated “One belt one road initiative”? 

The diameter of a domestic sewer pipe laid at gradient 1 in 100 is recommended 

Odd one out 

Factor of safety of embankments shall be 

While preparing a detailed estimate