Consider the following statements the following statements pertaining to a centrifugal pump:
1. The manometric head is the head developed by pump.
2. The suction pipe has, generally a larger diameter as compared to the discharge pipe.
3. The suction pipe is provided with a foot valve and a strainer.
4. The delivery pipe is provided with a foot valve and a strainer.
Which of these statements are correct?
a) 1,2,3 and 4 b) 1 and 2
c) 2 and 3 d) 1 and 3