Podcast
Questions and Answers
What will cause the firewall valves to open in the emergency mode?
What will cause the firewall valves to open in the emergency mode?
- Power levers forward of flight idle gate
- Selector switch in ARM position (correct)
- Selector switch in CONT position
- Engine producing more than 600 foot-pounds of torque
When will the system not be electrically powered?
When will the system not be electrically powered?
- Power levers are forward of the flight idle gate (correct)
- Selector switch is in ARM position
- Engine is producing more than 600 foot-pounds of torque
- Low torque is sensed by the torque switch
What is the function of each engine's torque switch in relation to the other engine's firewall valve?
What is the function of each engine's torque switch in relation to the other engine's firewall valve?
- It senses low engine torque (correct)
- It controls fluid injection
- It closes the firewall valve
- It opens the firewall valve
In which position should the selector switch be for fluid delivery to both engines?
In which position should the selector switch be for fluid delivery to both engines?
What will stop fluid flow to the engine during normal operation?
What will stop fluid flow to the engine during normal operation?
What is the function of AB flame retainers in afterburning engines?
What is the function of AB flame retainers in afterburning engines?
In the context of engine ignition, why would a variable area nozzle be fully closed at maximum nonafterburning power?
In the context of engine ignition, why would a variable area nozzle be fully closed at maximum nonafterburning power?
What is the key consequence of a variable area nozzle remaining closed after AB ignition?
What is the key consequence of a variable area nozzle remaining closed after AB ignition?
Why are afterburner screech liners utilized in afterburning engines?
Why are afterburner screech liners utilized in afterburning engines?
What role does a firewall flow valve play in the operation of the Metroliner engine?
What role does a firewall flow valve play in the operation of the Metroliner engine?
What is the purpose of the engine torque pressure switch in the fluid injection system?
What is the purpose of the engine torque pressure switch in the fluid injection system?
What happens when the selector switch is in the ARM position in the fluid injection system?
What happens when the selector switch is in the ARM position in the fluid injection system?
How does the fluid injection system indicate that each pump's pressure has reached 30 PSI?
How does the fluid injection system indicate that each pump's pressure has reached 30 PSI?
In the fluid injection system, what is the function of advancing the power levers past flight idle when the selector switch is in the ARM position?
In the fluid injection system, what is the function of advancing the power levers past flight idle when the selector switch is in the ARM position?
What action completes an electrical path to illuminate the cockpit ARM light in the fluid injection system?
What action completes an electrical path to illuminate the cockpit ARM light in the fluid injection system?
What component of the AB system is responsible for altering the engine's pressure ratio?
What component of the AB system is responsible for altering the engine's pressure ratio?
How is the exhaust nozzle actuated in the AB system?
How is the exhaust nozzle actuated in the AB system?
Which component continuously operates to alter pump output until balance is restored in the AB system?
Which component continuously operates to alter pump output until balance is restored in the AB system?
In the AB system, what causes an increase in the exhaust area of the nozzle?
In the AB system, what causes an increase in the exhaust area of the nozzle?
Which component of the AB system can be moved within a 90° sector for normal engine operation?
Which component of the AB system can be moved within a 90° sector for normal engine operation?
What is the purpose of the variable area nozzle on modern afterburning engines?
What is the purpose of the variable area nozzle on modern afterburning engines?
What causes the rise in pressure in the afterburner duct if the nozzles remain closed when afterburner is selected?
What causes the rise in pressure in the afterburner duct if the nozzles remain closed when afterburner is selected?
How does the variable area nozzle respond to afterburner selection by the pilot?
How does the variable area nozzle respond to afterburner selection by the pilot?
What role does the firewall valve play in the engine's operating conditions?
What role does the firewall valve play in the engine's operating conditions?
In what scenario would the control box be involved in managing engine operations?
In what scenario would the control box be involved in managing engine operations?
What is the primary purpose of the firewall valves mentioned in the text?
What is the primary purpose of the firewall valves mentioned in the text?
How does the control box impact the operation of the fluid injection system?
How does the control box impact the operation of the fluid injection system?
What role does the selector switch serve in the context of fluid delivery to both engines?
What role does the selector switch serve in the context of fluid delivery to both engines?
In what way does an engine torque switch interact with a firewall valve?
In what way does an engine torque switch interact with a firewall valve?
If a fluid injection system malfunctions, what could be a potential consequence related to engine performance?
If a fluid injection system malfunctions, what could be a potential consequence related to engine performance?
What is the primary purpose of firewall valves in the aircraft system?
What is the primary purpose of firewall valves in the aircraft system?
In the context of engine systems, what does the control box primarily control?
In the context of engine systems, what does the control box primarily control?
Where should the selector switch be positioned for exclusive fluid delivery to one engine only?
Where should the selector switch be positioned for exclusive fluid delivery to one engine only?
What triggers the activation of each engine's torque switch?
What triggers the activation of each engine's torque switch?
If the firewall valves fail to open during an emergency, what is most likely affected?
If the firewall valves fail to open during an emergency, what is most likely affected?
What happens when the selector switch is set to 'Emergency Mode'?
What happens when the selector switch is set to 'Emergency Mode'?
What factor is controlled by each engine's torque switch in relation to the firewall valve of the other engine?
What factor is controlled by each engine's torque switch in relation to the firewall valve of the other engine?
