Question

Given below are two statements:
Statement (I): Shaft horse power is always less than water horse power.
Statement (II): For direct driven pump, shaft horse power is equal to brake horse power.
In light of the above statements, choose the most appropriate answer from the options given below.

• A. Both Statement (I) and Statement (II) are true.
• B. Both Statement (I) and Statement (II) are false.
• C. Statement (I) is true but Statement (II) is false.
• D. Statement (I) is false but Statement (II) is true.

Hint:

Power sequence in pumping systems:
\[ \text{Brake Horsepower (BHP)} \ge \text{Shaft Horsepower (SHP)} > \text{Water Horsepower (WHP)} \] - BHP = SHP for direct-driven pumps.
- SHP is always greater than WHP due to pump losses.

Answer 1

The Correct Option is D