a) Moderately Hydraulic Lime
b) Eminently Hydraulic Lime
c) Perfectly Hydraulic Lime
d) Feebly Hydraulic Lime

Answer: d
Explanation: Hydraulic Lime slakes at a slower rate than Pure Lime. It is subdivided into three – Feebly Hydraulic, Moderately Hydraulic (1-2 hrs) and Eminently Hydraulic (slakes with difficulty).