Question

Starting from the water source, the sequence of parts of a drip irrigation system are as follows:
A. Main line
B. Laterals
C. Sub-main
D. Emitter E. Pump and prime mover unit
Choose the correct answer from the options given below:

• A. A, C, B, D, E
• B. A, D, B, E, C
• C. E, B, C, D, A
• D. E, A, C, B, D

Hint:

Think of a drip system like a tree's branching structure. The water flows from the trunk (Pump/Main) to large branches (Sub-mains), then to smaller branches (Laterals), and finally to the leaves (Emitters).

Answer 1

The Correct Option is D

Step 1: Comprehend the water movement within a drip irrigation setup.
The system's function is to extract water from a source, increase its pressure, and deliver it via a pipe network to the plants.
Step 2: Order the system components according to the direction of water travel.
1. E. Pump and prime mover unit: Positioned at the water source, this unit pressurizes water for system transit.
2. A. Main line: A large-diameter pipe transporting the primary water supply from the pump to the agricultural area.
3. C. Sub-main: Smaller pipes branching from the main line to segment water distribution across the field.
4. B. Laterals: Fine-diameter tubes extending from sub-mains, running alongside plant rows.
5. D. Emitter: The terminal device on the laterals, releasing water in a slow drip at the base of each plant.
The proper sequence is E \(\rightarrow\) A \(\rightarrow\) C \(\rightarrow\) B \(\rightarrow\) D.