सौर जल पंपों के संदर्भ में, निम्नलिखित कथनों पर विचार कीजिए :
- 1.सौर ऊर्जा का प्रयोग पृष्ठीय पंपों को चलाने के लिए हो सकता है और निमज्जनी (submersible) पंपों के लिए नहीं ।
- 2.सौर ऊर्जा का प्रयोग अपकेन्द्री पंपों को चलाने के लिए हो सकता है और पिस्टन वालों के लिए नहीं ।
उपर्युक्त कथनों में से कौन-सा/से सही है/हैं ?
Read this question in English
With reference to solar water pumps, consider the following statements:
1. Solar power can be used for running surface pumps and not for submersible pumps.
2. Solar power can be used for running centrifugal pumps and not the ones with piston.
Which of the statements given above is/are correct?
(a) 1 only · (b) 2 only · (c) Both 1 and 2 · (d) Neither 1 nor 2
उत्तर और व्याख्या · explanation in English
Answer: (d) न तो 1, न ही 2
Neither statement is correct. A solar panel only supplies electricity, so it can drive any suitable motor-pump: the Ministry of New and Renewable Energy's own specification lists both surface and submersible pump sets for solar water pumping, and piston (positive-displacement) pumps can be powered too.
- ✗ 1. MNRE's specification says solar photovoltaic water pumping systems may use a surface mono-set or a submersible motor-pump set.
- ✗ 2. MNRE's PM-KUSUM material names two types of solar water pump, centrifugal and positive displacement, and MNRE has a separate specification for solar pumping systems with positive-displacement pumps. Solar power is not limited to centrifugal pumps.
Remember · Solar pumps are just electric pumps fed by panels: surface or submersible, AC or DC, centrifugal or positive-displacement can all be used.
Sources
- Specification and testing procedure for Solar Photovoltaic Water Pumping Systems, Ministry of New and Renewable Energy (updated, February 2023) ↗ “The SPV water pumping systems may use any of the following types of motor pump sets: a) Surface Mono-set b) Submersible motor-pump set.”
- PM-KUSUM (MNRE), Type of solar water pumps and different components ↗ “There are namely two general types of pumps used in solar water pumping applications - centrifugal and positive displacement. Both centrifugal and positive displacement pumps can be further classified as:”
- MNRE, Annexure A: Solar Water Pumping Systems with Positive Displacement Pump ↗ “The specification covers the technical requirements for Solar Photo Voltaic Water Pumping Systems using positive displacement technology for handling clear cold water covering design qualification s and performance specifications.”
Question and answer: UPSC's official GS Paper I (2020, Series A) — paper ↗ · answer key ↗. Explanation: Minimalist IAS, checked 30 Sept 2026 (how we verify). ·