CPL Aircraft General Knowledge · Practice

An aircraft has a pitot-static system blockage such that both the pitot and static ports are simultaneously blocked. The ASI will:

• A.Remain frozen at the indicated airspeed at the time of blockage, regardless of subsequent speed or altitude changes
• B.Show zero airspeed immediately because no differential pressure exists between the two blocked ports, driving the capsule to its rest position
• C.Show continuously increasing airspeed indication as the aircraft climbs to altitude due to the changing static pressure differential in the system
• D.Oscillate erratically between its minimum and maximum calibrated airspeed readings as turbulence causes vibrations in the blocked system