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The ratio of the indicated power to the shaft power or brake power of the motor or engine required to drive the compressor, is called

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The ratio of the indicated power to the shaft power or brake power of the motor or engine required to drive the compressor, is called Answer: mechanical efficiency

Question context

This question is part of ⚙️ Mechanical Eng within the broader 🛠️ Engineering Essentials subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.