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
Question
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
Solution
The correct answer is a. RPM and MAP using pitch control and throttle.
As altitude increases, the air density decreases. This means that the engine has to work harder to maintain the same power output. To compensate for this, the pilot can increase the RPM (Revolutions Per Minute) and MAP (Manifold Absolute Pressure) using the pitch control and throttle.
The pitch control adjusts the angle of the propeller blades to increase or decrease the amount of air they move, effectively changing the 'gear' of the propeller. The throttle controls the amount of fuel and air mixture that is sent to the engine. By increasing both of these, the engine can maintain the same power output at higher altitudes.
Similar Questions
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
One way a CSU propeller achieves higher efficiency than a fixed pitch propeller is byQuestion 33Select one:a.Increasing the propeller pitch as speed increases during a take-off to maintain a constant angle of attackb.Increasing the propeller pitch as speed increases during a take-off to increase the angle of attackc.Decreasing the propeller pitch as speed increases during a take-off to maintain a small propeller angle of attackd.Decreasing the propeller pitch as speed increases during a take-off to maintain a constant angle of attack
An engine fitted with a variable pitch propeller and a CSU requires power instrumentation forQuestion 36Select one:a.RPM and EGTb.MAP and EGTc.MAP and RPMd.MAP, CHT and EGT
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
During pre take-off power checks, an indication that a CSU engine is not delivering full power could beQuestion 34Select one:a.Failure of rpm to drop when exercising the propellerb.Lower than normal map at check rpmc.Higher than normal map at check rpmd.Low oil pressure high oil temperature
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