Arrange the following steps in the correct sequence for the... | Agrigyan

• Statement (I) is Incorrect: Groundwater pumping cost is determined by multiple interdependent parameters (dynamic pumping lift, total discharge rate, pump efficiency, and energy tariffs), not solely the static depth of the aquifer.
• Statement (II) is Correct: Pumping from greater depths increases total dynamic head ($H$), which increases required brake horsepower ($BHP = \frac{Q \cdot H}{75 \cdot \eta}$) and electrical/diesel energy consumption, resulting in higher operational and maintenance costs.
• Conclusion: Statement (I) is incorrect but Statement (II) is correct (Option 4).

• Logical Engineering Sequence for Agricultural Irrigation Pump Selection:
• Step 1 (B): Conduct a hydraulic analysis to determine required design discharge ($Q$) and total dynamic head ($TDH = H_{\text{stat}} + H_{\text{fric}} + H_{\text{vel}}$).
• Step 2 (A): Analyze system operating requirements and environmental conditions, including water temperature, elevation, Net Positive Suction Head Available ($NPSHA$), and water quality (suspended silt).
• Step 3 (C): Research and evaluate pump curves, operating efficiency points, and manufacturer specifications (centrifugal, submersible, or turbine pumps).
• Step 4 (D): Consult specialists and manufacturers for final selection, installation configuration, and warranty verification.
• Conclusion: Correct engineering sequence is (B), (A), (C), (D), corresponding to Option 4.

Correct option: (4) (B), (A), (C), (D)