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
Question
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
Solution
The manifold pressure will increase. When the pitch control lever is moved to decrease RPM, the blades of the propeller increase their angle of attack. This makes the engine work harder to keep the propeller spinning, which in turn increases the manifold pressure. So, the correct answer is b. Increase.
Similar Questions
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
For a normally aspirated engine with a CSU equipped propeller if the throttle and pitch lever are not adjusted a climb to a higher altitude will result inQuestion 38Select one:a.MP and RPM increasingb.MP and RPM remaining constantc.MP and RPM decreasingd.MP decreasing and RPM increasinge.MP decreasing and RPM remaining constantf.MP increasing and RPM remaining constant
With a CSU propeller as altitude is increased a constant power output requires an increase inQuestion 35Select one:a.RPM and MAP using pitch control and throttleb.RPM onlyc.Manifold pressured.Throttle setting and richer mixture
Loss of governor oil pressure to a counter-weight fitted propeller would be indicated byQuestion 23Select one:a.Decreasing RPM increasing MPb.Increasing RPM decreasing MPc.Constant RPM increasing MPd.Constant RPM decreasing MP
If a failure in the propeller hub of a CSU caused the blades to lock into one pitch setting, the RPM wouldQuestion 16Select one:a.Slowly increase to the red lineb.Gradually decreasec.Change whenever engine power changedd.Fluctuate
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