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: Visualize the flow of water in a drip irrigation system.
The system is designed to take water from a source, pressurize it, and distribute it through a network of pipes to the plants.
Step 2: Arrange the components in the order of water flow.
1. E. Pump and prime mover unit: This is at the water source. The pump pressurizes the water to push it through the system.
2. A. Main line: A large diameter pipe that conveys the main water supply from the pump to the field.
3. C. Sub-main: Smaller pipes that branch off from the main line to distribute water to different sections of the field.
4. B. Laterals: Small diameter tubes that branch off from the sub-mains and run along the rows of plants.
5. D. Emitter: The final component, attached to the laterals, which discharges water in slow drips at the base of each plant.
The correct sequence is E \(\rightarrow\) A \(\rightarrow\) C \(\rightarrow\) B \(\rightarrow\) D.