1. Head developed is proportional to the square of the speed of rotation. |
2. Backward curved bladed impellers arc generally used in centrifugal pumps. |
3. These pumps generally do not require priming. |
4. Multistage pumps would give higher discharge proportional to the number of stages. Which of these statements are correct? |
A) 1 and 2
B) 2 and 3
C) 3 and 4
D) 1 and 4
Correct Answer: A
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