Question

Write the steps involved in designing of a sprinkler system in a proper sequence.
A. Quantity of water to be applied
B. Application rate
C. Capacity of the system
D. Selection of sprinklers
Choose the correct answer from the options given below:

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

Hint:

Sprinkler design follows a "crop-to-pump" logic: 1. How much water does the crop need? (Quantity) 2. How fast can the soil absorb it? (Application Rate) 3. Which hardware can deliver this? (Sprinkler Selection) 4. What size pump and pipes are needed for all the hardware? (System Capacity)

Answer 1

The Correct Option is C

Step 1: Outline the logical design process for a sprinkler system.
The design starts from the crop's needs and works backward to the system's hardware and capacity.
Step 2: Arrange the given steps in a logical sequence.
1. A. Quantity of water to be applied: The first step is to determine the crop water requirement and the soil's water holding capacity. This tells you how much water (depth) needs to be applied in each irrigation event.
2. B. Application rate: Next, you decide how fast to apply that water. The application rate must be less than the soil's infiltration rate to avoid runoff. This helps determine the type of sprinkler needed.
3. D. Selection of sprinklers: Based on the required application rate, desired droplet size, and coverage area, you select the specific sprinkler heads (nozzles, pressure, spacing). The sprinkler's discharge rate is now known.
4. C. Capacity of the system: Once you know the number of sprinklers needed to cover the area and the discharge of each sprinkler, you can calculate the total flow rate required for the system. This determines the required capacity of the pump and the sizes of the main and lateral pipes.
The correct logical sequence is A \(\rightarrow\) B \(\rightarrow\) D \(\rightarrow\) C.