Commercial Pilot License (CPL) Practice Exam 2025 - Free Commercial Pilot License Practice Questions and Study Guide

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What does the manifold pressure gauge provide?

Indirect reading of engine temperature.

Direct reading of manifold pressure.

The manifold pressure gauge provides a direct reading of manifold pressure, which is vital for understanding the performance and efficiency of a reciprocating engine. Manifold pressure indicates the pressure within the intake manifold, and it is a crucial factor in determining the engine's power output relative to altitude and throttle settings. In aviation, especially in turbocharged and supercharged engines, monitoring manifold pressure helps pilots assess the engine's performance and optimize fuel efficiency and climb performance.

The correct understanding of manifold pressure is fundamental for flight operations as it directly affects the engine's ability to produce thrust and maintain performance at varying altitudes. Consequently, accurate readings from the manifold pressure gauge assist pilots in managing engine power during different phases of flight, ensuring safety and operational efficiency.

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Analog display of fuel consumption.

Measurement of oil pressure.

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