T6 Systems questions with complete answers
Primary flight controls - answer-Elevator (pitch), ailerons (roll), rudder (yaw), and gust
c c c c c c c c c c c
lock
c
Secondary flight controls - answer-Elevator, aileron, and rudder trims...trim aid device
c c c c c c c c c c
(TAD)
c
What communication systems are located on the radio management unit (RMU)? -
c c c c c c c c c c c
answer-VHF transceiver, UHF transceiver, and transponder
c c c c c c
Primary flight instruments - answer-Electronic attitude director indicator (EADI),
c c c c c c c c
electronic horizontal situation indicator (EHSI), airspeed indicator, altimeter, and vertical
c c c c c c c c c c
speed indicator (VSI)
c c c
Standby flight instruments - answer-Airspeed indicator, attitude indicator, altimeter, turn
c c c c c c c c c
and bank indicator, and magnetic compass
c c c c c c
The Trim Aid Device (TAD) assists trimming for which control surface during airspeed
c c c c c c c c c c c c
and power changes? - answer-Rudder
c c c c c
Primary navigation display is provided by which component of the Electronic Flight
c c c c c c c c c c c
Instrument System (EFIS)? - answer-Electronic Horizontal Situation Indicator (EHSI)
c c c c c c c c c
Which aircraft system provides automatic temperature and pressure control? - answer-
c c c c c c c c c c
Environment control system c c
What frequency does the personal locator beacon transmit? - answer-121.5 MHz and
c c c c c c c c c c c
406.0 MHz
c c
What benefits do engine cowlings provide? - answer-Protect the engine components,
c c c c c c c c c c
decrease drag, and provide an engine air intake
c c c c c c c c
What does the inertial separator do? - answer-Causes air molecules to turn 90 degrees
c c c c c c c c c c c c c
to the engine compartment. Heavier particles are not able to make the turn and are
c c c c c c c c c c c c c c c
returned to the atmosphere through a bypass duct
c c c c c c c c
What type of engine does the T6A have? - answer-Pratt & Whitney PT6A-68 free
c c c c c c c c c c c c c
turbine, reverse flow design, turboprop engine
c c c c c c
Three elements necessary for engine operation - answer-Air, fuel, and heat
c c c c c c c c c c
,Major sections of the engine - answer-Accessory compartment, gas generation section,
c c c c c c c c c c
and power turbine section
c c c c
What provides air to the engine until it starts and is able to sustain itself? - answer-
c c c c c c c c c c c c c c c c
Starter, located in the accessory compartment
c c c c c
During startup, what provides air, fuel, and heat? - answer-Starter = air; fuel
c c c c c c c c c c c c
management unit (FMU) = fuel; ignition system = heat
c c c c c c c c c
What does the T6A use to initiate combustion? - answer-Dual spark ignition system
c c c c c c c c c c c c
Ignition components/location - answer-Ignition exciter (mounted to airframe), two high
c c c c c c c c c
cvoltage igniter cables, and two spark igniters (4 and 9 o'clock positions around the
c c c c c c c c c c c c c
ccombustion chamber) c
Sequence of Ignition system operation - answer-Ignition exciter receives low voltage
c c c c c c c c c c
input signal, transforms signal to high voltage output signal through igniter cables to the
c c c c c c c c c c c c c c
two spark igniters in the combustion chamber
c c c c c c c
What are the two positions for the Ignition control switch? - answer-ON and NORM
c c c c c c c c c c c c c
During autostart or normal operation the ignition switch should be placed in what
c c c c c c c c c c c c
position? - answer-NORM
c c c
With the ignition switch in NORM, when will the igniter initiate? And what annunciator will
c c c c c c c c c c c c c c
illuminate when igniters are activated? - answer-When the Starter switch is moved to
c c c c c c c c c c c c c
AUTO/RESET. A green IGN SEL annunciator will illuminate
c c c c c c c c
What/where is the ignition system circuit breaker labeled? - answer-IGN, located on the
c c c c c c c c c c c c
battery bus (front cockpit)
c c c c
What does the Power control lever (PCL) do? - answer-Controls fuel flow to the engine,
c c c c c c c c c c c c c c
producing torque on the propeller, and ultimately controls the amount of engine power
c c c c c c c c c c c c c
and aircraft speed
c c c
What two units is the PCL connected to? - answer-Fuel Management Unit (FMU) and
c c c c c c c c c c c c c
Power Management Unit (PMU)
c c c c
IDLE power is always the ... - answer-minimum operational power
c c c c c c c c c
To find the start position, move the PCL forward until ... - answer-a green ST READY
c c c c c c c c c c c c c c c
annunciator light illuminates
c c c
What prevents inadvertent engine shutdown? - answer-PCL cutoff gate
c c c c c c c c
, Where is the Power Management Unit (PMU) located? - answer-Underneath the engine
c c c c c c c c c c c
in the accessory compartment
c c c c
What does the Power Management Unit (PMU) do? - answer-Keeps the engine within
c c c c c c c c c c c c
operating limits, determines available power, and provides a near linear power response
c c c c c c c c c c c c
When is a step change likely to occur? - answer-If the PMU fails or is turned off in flight
c c c c c c c c c c c c c c c c c c
PMU switch positions - answer-OFF and NORM
c c c c c c
Annunciator will illuminate after landing to notify maintenance that the PMU has faulted -
c c c c c c c c c c c c c
answer-Amber PMU STATUS; yellow MASTER CAUTION
c c c c c c
Notification of nonfunctional PMU - answer-Red PMU FAIL, amber PMU STATUS,
c c c c c c c c c c
yellow MASTER CAUTION, red MASTER WARNING, and aural tone
c c c c c c c c c
PMU circuit breaker - answer-PMU located on battery bus (front cockpit)
c c c c c c c c c c
PMU power - answer-Permanent Magnet Alternator (PMA) mounted on the reduction
c c c c c c c c c c
gearbox
c
A shaft connects the starter/generator to ... - answer-compressor section
c c c c c c c c c
What does the generator do? - answer-Provides power to many of the aircraft systems
c c c c c c c c c c c c c
and charges the battery and aux battery to 24 VDC
c c c c c c c c c c
Which starter switch position will be used for most engine starts? -
c c c c c c c c c c c
answer-AUTO/RESET
c
Starter switch positions - answer-AUTO/REST, NORM, and MANUAL
c c c c c c c
Engine start sequence - answer-PCL forward until green ST READY annunciator
c c c c c c c c c c
illuminates, ignition switch in NORM position, starter switch moved to
c c c c c c c c c c
AUTO/RESET...green IGN SEL annunciator illuminates
c c c c c
Starter power circuit breaker - answer-START located on battery bus (front cockpit)
c c c c c c c c c c c
Oil system includes ... - answer-pressure system, scavenge system, and cooling system
c c c c c c c c c c c
What does the oil system provide? - answer-A steady flow of filtered oil to the engine
c c c c c c c c c c c c c c c
bearings, reduction gears, accessory drives, and propeller
c c c c c c c
What does the oil scavenge system do? - answer-Replace the oil in the oil tank by
c c c c c c c c c c c c c c c
returning the oil to the tank via an oil cooler
c c c c c c c c c c
Where is the chip detector located? - answer-Reduction gearbox
c c c c c c c c
Primary flight controls - answer-Elevator (pitch), ailerons (roll), rudder (yaw), and gust
c c c c c c c c c c c
lock
c
Secondary flight controls - answer-Elevator, aileron, and rudder trims...trim aid device
c c c c c c c c c c
(TAD)
c
What communication systems are located on the radio management unit (RMU)? -
c c c c c c c c c c c
answer-VHF transceiver, UHF transceiver, and transponder
c c c c c c
Primary flight instruments - answer-Electronic attitude director indicator (EADI),
c c c c c c c c
electronic horizontal situation indicator (EHSI), airspeed indicator, altimeter, and vertical
c c c c c c c c c c
speed indicator (VSI)
c c c
Standby flight instruments - answer-Airspeed indicator, attitude indicator, altimeter, turn
c c c c c c c c c
and bank indicator, and magnetic compass
c c c c c c
The Trim Aid Device (TAD) assists trimming for which control surface during airspeed
c c c c c c c c c c c c
and power changes? - answer-Rudder
c c c c c
Primary navigation display is provided by which component of the Electronic Flight
c c c c c c c c c c c
Instrument System (EFIS)? - answer-Electronic Horizontal Situation Indicator (EHSI)
c c c c c c c c c
Which aircraft system provides automatic temperature and pressure control? - answer-
c c c c c c c c c c
Environment control system c c
What frequency does the personal locator beacon transmit? - answer-121.5 MHz and
c c c c c c c c c c c
406.0 MHz
c c
What benefits do engine cowlings provide? - answer-Protect the engine components,
c c c c c c c c c c
decrease drag, and provide an engine air intake
c c c c c c c c
What does the inertial separator do? - answer-Causes air molecules to turn 90 degrees
c c c c c c c c c c c c c
to the engine compartment. Heavier particles are not able to make the turn and are
c c c c c c c c c c c c c c c
returned to the atmosphere through a bypass duct
c c c c c c c c
What type of engine does the T6A have? - answer-Pratt & Whitney PT6A-68 free
c c c c c c c c c c c c c
turbine, reverse flow design, turboprop engine
c c c c c c
Three elements necessary for engine operation - answer-Air, fuel, and heat
c c c c c c c c c c
,Major sections of the engine - answer-Accessory compartment, gas generation section,
c c c c c c c c c c
and power turbine section
c c c c
What provides air to the engine until it starts and is able to sustain itself? - answer-
c c c c c c c c c c c c c c c c
Starter, located in the accessory compartment
c c c c c
During startup, what provides air, fuel, and heat? - answer-Starter = air; fuel
c c c c c c c c c c c c
management unit (FMU) = fuel; ignition system = heat
c c c c c c c c c
What does the T6A use to initiate combustion? - answer-Dual spark ignition system
c c c c c c c c c c c c
Ignition components/location - answer-Ignition exciter (mounted to airframe), two high
c c c c c c c c c
cvoltage igniter cables, and two spark igniters (4 and 9 o'clock positions around the
c c c c c c c c c c c c c
ccombustion chamber) c
Sequence of Ignition system operation - answer-Ignition exciter receives low voltage
c c c c c c c c c c
input signal, transforms signal to high voltage output signal through igniter cables to the
c c c c c c c c c c c c c c
two spark igniters in the combustion chamber
c c c c c c c
What are the two positions for the Ignition control switch? - answer-ON and NORM
c c c c c c c c c c c c c
During autostart or normal operation the ignition switch should be placed in what
c c c c c c c c c c c c
position? - answer-NORM
c c c
With the ignition switch in NORM, when will the igniter initiate? And what annunciator will
c c c c c c c c c c c c c c
illuminate when igniters are activated? - answer-When the Starter switch is moved to
c c c c c c c c c c c c c
AUTO/RESET. A green IGN SEL annunciator will illuminate
c c c c c c c c
What/where is the ignition system circuit breaker labeled? - answer-IGN, located on the
c c c c c c c c c c c c
battery bus (front cockpit)
c c c c
What does the Power control lever (PCL) do? - answer-Controls fuel flow to the engine,
c c c c c c c c c c c c c c
producing torque on the propeller, and ultimately controls the amount of engine power
c c c c c c c c c c c c c
and aircraft speed
c c c
What two units is the PCL connected to? - answer-Fuel Management Unit (FMU) and
c c c c c c c c c c c c c
Power Management Unit (PMU)
c c c c
IDLE power is always the ... - answer-minimum operational power
c c c c c c c c c
To find the start position, move the PCL forward until ... - answer-a green ST READY
c c c c c c c c c c c c c c c
annunciator light illuminates
c c c
What prevents inadvertent engine shutdown? - answer-PCL cutoff gate
c c c c c c c c
, Where is the Power Management Unit (PMU) located? - answer-Underneath the engine
c c c c c c c c c c c
in the accessory compartment
c c c c
What does the Power Management Unit (PMU) do? - answer-Keeps the engine within
c c c c c c c c c c c c
operating limits, determines available power, and provides a near linear power response
c c c c c c c c c c c c
When is a step change likely to occur? - answer-If the PMU fails or is turned off in flight
c c c c c c c c c c c c c c c c c c
PMU switch positions - answer-OFF and NORM
c c c c c c
Annunciator will illuminate after landing to notify maintenance that the PMU has faulted -
c c c c c c c c c c c c c
answer-Amber PMU STATUS; yellow MASTER CAUTION
c c c c c c
Notification of nonfunctional PMU - answer-Red PMU FAIL, amber PMU STATUS,
c c c c c c c c c c
yellow MASTER CAUTION, red MASTER WARNING, and aural tone
c c c c c c c c c
PMU circuit breaker - answer-PMU located on battery bus (front cockpit)
c c c c c c c c c c
PMU power - answer-Permanent Magnet Alternator (PMA) mounted on the reduction
c c c c c c c c c c
gearbox
c
A shaft connects the starter/generator to ... - answer-compressor section
c c c c c c c c c
What does the generator do? - answer-Provides power to many of the aircraft systems
c c c c c c c c c c c c c
and charges the battery and aux battery to 24 VDC
c c c c c c c c c c
Which starter switch position will be used for most engine starts? -
c c c c c c c c c c c
answer-AUTO/RESET
c
Starter switch positions - answer-AUTO/REST, NORM, and MANUAL
c c c c c c c
Engine start sequence - answer-PCL forward until green ST READY annunciator
c c c c c c c c c c
illuminates, ignition switch in NORM position, starter switch moved to
c c c c c c c c c c
AUTO/RESET...green IGN SEL annunciator illuminates
c c c c c
Starter power circuit breaker - answer-START located on battery bus (front cockpit)
c c c c c c c c c c c
Oil system includes ... - answer-pressure system, scavenge system, and cooling system
c c c c c c c c c c c
What does the oil system provide? - answer-A steady flow of filtered oil to the engine
c c c c c c c c c c c c c c c
bearings, reduction gears, accessory drives, and propeller
c c c c c c c
What does the oil scavenge system do? - answer-Replace the oil in the oil tank by
c c c c c c c c c c c c c c c
returning the oil to the tank via an oil cooler
c c c c c c c c c c
Where is the chip detector located? - answer-Reduction gearbox
c c c c c c c c
