Match List I (Type of Model) with List II (Liquid Handled) and select the’ correct answer:
List I
A. Closed impeller pump
B. Semi-open impeller pump
C. Open impeller pump
List II
1. Sandy water
2. Acids
3. Sewage water
Codes;
A B C
a. 1 3 2
b. 3 1 2
c. 2 3 1
d. 1 2 3