AMS 274 UNIT 4 ACTUAL 2025/2026
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Terms in this set (46)
A typical Gear ratio for an air 3,200 RPM
turbine starter is 25:1. If the turbine
is rotating @ 80,000 RPM's, what
would the input RPM be to the gear
box?
With a variable vane system when at Low RPM
will the vanes be most closed?
What happens if the vanes are stuck Engine will stall in low power
in the open position?
, A clicking noise heard from an air Pawls re-engaging and riding the ratchet in case
turbine starter on engine coast we need a re-start
down is a result of what?
Which igniter plug requires special Low voltage shunted surface gap (Self Ionizing)
handling due to semi-conductor
material?
What does the semi conductor Cold- Conducts
material do when its HOT and Hot- Isolates
COLD?
What is autoignition and what does Ensures instantaneous igniton if an engine loses
it sense? power. Senses Torque, Oil Pressure, and loss of
Compressure dischatge pressure
What positions are fail type anti-ice Powered closed and spring loaded open
valves in?
What instrument indication would Slight Rise in EGT (10 Degrees)
you most likely see when engine
anti-ice is turned on?
Starting sequence Starter, Ignition, Fuel
When do you disengage the When it reaches self accelerating speed
starter?
QUESTIONS AND 100% CORRECT ANSWERS
Save
Practice questions for this set
Learn 1 /7 Study with Learn
Terms in this set (46)
A typical Gear ratio for an air 3,200 RPM
turbine starter is 25:1. If the turbine
is rotating @ 80,000 RPM's, what
would the input RPM be to the gear
box?
With a variable vane system when at Low RPM
will the vanes be most closed?
What happens if the vanes are stuck Engine will stall in low power
in the open position?
, A clicking noise heard from an air Pawls re-engaging and riding the ratchet in case
turbine starter on engine coast we need a re-start
down is a result of what?
Which igniter plug requires special Low voltage shunted surface gap (Self Ionizing)
handling due to semi-conductor
material?
What does the semi conductor Cold- Conducts
material do when its HOT and Hot- Isolates
COLD?
What is autoignition and what does Ensures instantaneous igniton if an engine loses
it sense? power. Senses Torque, Oil Pressure, and loss of
Compressure dischatge pressure
What positions are fail type anti-ice Powered closed and spring loaded open
valves in?
What instrument indication would Slight Rise in EGT (10 Degrees)
you most likely see when engine
anti-ice is turned on?
Starting sequence Starter, Ignition, Fuel
When do you disengage the When it reaches self accelerating speed
starter?
