As the manifold pressure is reduced with the throttle, the pitch lever is not moved, but the RPM remains constant, this is because the propellerQuestion 28Select one:a.Has moved into a finer pitchb.Has moved into a courser pitchc.Pitch has remained constant
Question
As the manifold pressure is reduced with the throttle, the pitch lever is not moved, but the RPM remains constant, this is because the propellerQuestion 28Select one:a.Has moved into a finer pitchb.Has moved into a courser pitchc.Pitch has remained constant
Solution
The answer is a. Has moved into a finer pitch.
Here's why:
When the throttle is reduced, the manifold pressure decreases. This means there is less force pushing the propeller blades through the air. To maintain the same RPM, the propeller blades must move into a finer pitch. This means the angle of the blades is reduced so they 'bite' less air with each rotation. This allows the propeller to maintain the same RPM with less force.
Similar Questions
If the pitch control lever on a normally aspirated engine fitted with a CSU is moved to decrease RPM with no adjustment made to the position of the throttle, the manifold pressure willQuestion 29Select one:a.Remain unalteredb.Increasec.Decreased.Increase then decrease
When the propeller pitch check is made the RPM shouldQuestion 22Select one:a.Increase because the pitch has increasedb.Decrease because the pitch has decreasedc.Increase because the pitch has decreasedd.Decrease because the pitch has increased
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