// C12U Systems Exam // Flashcards
Which of the following is NOT a form of parasite drag?
Induced Drag
Why is the top an airplanes wing curved?
To create an area of low pressure above the wing
The _____________ is a theoretical point where all the aircraft’s weight is considered to be concentrated.
Center of gravity
An aircraft with its center of gravity at the aft limit will exhibit all of these performance characteristics except?
Highest stall speed
What is the purpose of a dihedral of a wing?
Create a stabilizing moment
The initial tendency of the aircraft to return to the original state of equilibrium after being disturbed is called?
Positive static stability
Which is NOT a purpose of a high lift device?
Important for high-speed characteristics of aircraft
Which method is most often used to increase the coefficient of lift?
Increase camber of airfoil
The only condition that can cause a stall is an excessive ___________
Angle of attack
A method of stall progression from the root section to the wingtip where the wing consists of both a cambered and symmetrical airfoil is called _________.
Aerodynamic Twist
The _________ should be used during takeoff when obstacle clearance is a primary concern. The most altitude is gained for the horizontal distance covered.
Vx Best angle of climb
When airspeed is held constant, a larger _________ will result in a smaller turn radius and greater turn rate.
Angle of bank
Ground effect reduces or cancels out the downwash and _________behind the wing during takeoff and landing near the runway surface. This causes lifting surfaces to become more effective.
Wingtip vortexes
Takeoff distance is directly _________ to takeoff velocity squared.
Proportional
A _______ propeller setting obtains maximum power for takeoff.
Low Pitch, high RPM
The function of the propeller governor is to:
Control the blade angle to maintain a constant propeller RPM
Define “critical engine”
Engine whose loss presents the greatest controllability problem
Vmc is highly sensitive to which condition?
Bank Angle
Which of the following is NOT a form of structural icing?
Induction
Which of the following should you perform in the event you inadvertently penetrate a thunderstorm while flying?
Plan and hold course to get through thunderstorm in minimal time
_____________ can cause you to become disoriented with the horizon at night.
Ground lighting
A_____________ runway can create an illusion that the aircraft is lower than it actually is leading to a higher approach.
Wide
The PT6A-42 engine has two ignitor plugs which are located at?
4 and 9 o’clock
The outlet pressure at the high pressure fuel pump is
900-1100 psi
The torque limiter monitors torque-meter oil pressure and if the engine produces excessive torque, the limiter bleeds off governing air pressure within the FCU to reduce fuel flow, which in turn _______________
reduces N1 speed
The oil pressure caution range above 21,000 feet is?
85-100 psi
The max torque percent with less than 1600 propeller RPM is _________.
49%
Normal climb and cruise TGT is ______.
770c
All emergency and abnormal operations procedures can be found in which chapter of the flight manual?
Chapter 9
A ____________ system is installed in each engine to detect external fire and provide alarm to the pilot.
Flame surveillance
Infrared radiation exposure activates the relay circuit of a ___________, which causes signal power to be sent to cockpit warning systems.
control amplifier
Pulling the _________ will electrically arm the extinguisher system and close the fuel firewall shutoff valve for that particular engine.
fire control handle
Pressing the lens of the _________ switch will fire the squib, expelling all the agent in the cylinder at one time.
Push to extinguish
Beta and reverse blade angles are controlled by the ________ in the beta and reverse range.
Power levers
If the primary governor fails, the overspeed governor will activate at approximately _________.
2080
When the PROP SYN is ON, and the left propeller is operating at a higher rpm, a black and white cross pattern located on the pilots instrument panel will _____________.
Spin counterclockwise
The AUTOFEATHER system will not arm until the AUTOFEATHER swtich is in ARM, the power levers are at the 90% N1 or greater position and ________________.
The high and low pressure switches sense torque loss
The maximum propeller overspeed limit is _______ RPM and is limited to 5 seconds.
2200