Q1: The maximum head that can be developed by a single impeller is __________ ft.

ANS:C - 250-300

The maximum head that can be developed by a single impeller in a centrifugal pump typically ranges from 250-300 feet.

Explanation:

1. Centrifugal Pump Impeller:
   • The head developed by a centrifugal pump depends on several factors including the design of the impeller, rotational speed, and the specific design of the pump.
   • For a single-stage centrifugal pump with a standard impeller design, the maximum head that can be developed is generally in the range of 250 to 300 feet (approximately 76 to 91 meters).
2. Factors Affecting Head Development:
   • Impeller Design: The geometry, size, and number of vanes on the impeller affect its ability to impart energy to the fluid.
   • Rotational Speed: Higher speeds can increase the head developed, but there are practical limits based on mechanical considerations.
   • Pump Design: Different pump designs and impeller configurations can vary the maximum head capabilities.
3. Typical Values:
   • While specific pump designs and applications can vary, a general guideline for the maximum head developed by a single impeller in a centrifugal pump falls within the range of 250 to 300 feet.

Conclusion: