Step 1: Understanding the Concept:
A groundnut decorticator is a machine used to shell groundnuts (peanuts), i.e., to separate the kernels from the outer shell or pod. The capacity of such a machine refers to the mass of unshelled groundnuts it can process per hour. The question asks for a typical capacity range for a power-operated model.
Step 2: Detailed Explanation:
1. The capacity of agricultural machinery is a standard specification and varies widely depending on the size and power of the machine.
2. Groundnut decorticators range from small, hand-operated models with a capacity of 40-60 kg/h to large, power-operated commercial units.
3. Power-operated decorticators themselves come in different sizes, typically powered by electric motors or tractor PTOs ranging from 1 hp to 10 hp or more.
4. The capacity depends on factors like the type of decorticating mechanism (e.g., oscillating sector, rotary drum), the moisture content of the pods, and the variety of groundnut.
5. While there's a wide spectrum of capacities, standard specifications for large, commercially viable power-operated decorticators are often cited in textbooks and manufacturer literature.
6. The ranges provided are quite specific. A capacity of around 2000 kg/h is a very high capacity for a groundnut decorticator, representing a large industrial-scale machine. Typical medium-to-large power-operated farm-level or small commercial units might have capacities from 200 to 600 kg/h.
7. However, we must choose from the given options. The options seem to refer to very large-scale machines. Let's analyze the provided solution key which marks option (B) as correct.
8. The range of 1875 to 2000 kg/h represents a specific class of high-capacity, power-operated decorticators. Without a specific model or power rating, this becomes a question of knowing standard machine classifications. Accepting the provided key, this range is the intended answer for a "power operated" (implying large-scale) machine.
Step 3: Final Answer:
Based on the provided options which seem to pertain to high-capacity machines, the capacity of a power-operated groundnut decorticator is in the range of 1875 to 2000 kg/h. Therefore, option (B) is the correct answer.