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Arrangement of taking one road over another by means of a bridge is called
A) Fly over B) Round about
C) Traffic island D) Tunnel

Which of the following is not a grade interchange ?
A) Clover leaf B) Rotary interchange
C) 3 way interchange D) Round about

Which type of parking is most preferred when width of street is limited ?
A) 45 degree parking B) 60 degree parking
C) Parallel parking D) Right angled parking

The minimum area required for a medium size park is
A) 4 hectare B) 8 hectare
C) 6 hectare D) 12 hectare

The method adopted for removing suspended solids during treatment of water
A) Screening B) Filteration
C) Adsorption D) Sedimentation

Coagulation is adopted for removing
A) Colour B) Dissolved gases
C) Colloidal solids D) Floating objects

If the length of a sedimentation tank is 15 m and the detention period is 150 minutes
the horizontal flow velocity is given by

A) 0.1 mm/minute B) 100 mm/minute
C) 10 mm/minute D) 1 mm/minute

JAR test is used determine
A) Dosage of coagulant B) Dosage of disinfectant
C) Size of sedimentation tank D) Hardness

Name one method to remove permanent hardness.
A) Boiling B) Adding lime
C) Zeolite process D) None of these