Final Exam Review Flashcards
Where is the float bowl in relation to the discharge nozzle?
Float bowl is below the discharge nozzle to prevent seepage
What causes fuel to leave float bowl?
Differential pressure
What does the airbleed do on the carb?
Assists with atomization, provides an extra boost to fuel
On a pressure carb, where is the discharge nozzle located?
Downstream of the venturi
The compressor on a supercharger is driven by what?
The engine
What best describes critical altitude?
The highest altitude for the rated horsepower
How does the wastegate actuate?
Spring tension open/Oil Pressure closed
Where is upper deck pressure measured?
Between compressor discharge and throttle plate
On a continental engine, where is upper deck pressure used?
Sonic Venturi
Fuel nozzles
Magnetos
Fuel Pump
If you have a leaky diaphragm, how would you know?
Fuel stains on fuel vent
Which system limits manifold pressure at full throttle?
APC
Which system limits manifold pressure at other throttle settings?
VAPC
Which system keeps differential pressure below 2.2x?
Pressure Ratio Controller
What is the main limitation with short stack exhaust systems?
Sideslips may cause thermal shocking in the exhaust valve and guide (cracking)
Which limits do we refer to when doing a bulk inspection?
Service Limits
What do we use when checking the crankshaft for runout?
Dial indicator
At what engine speed do we perform a live mag check?
Idle
At what engine speed do we perform a mag drop test?
1700 RPM
Why do we perform a cold cylinder check?
One cylinder is not operating properly
How do we adjust valve clearances on engines with hydraulic lifters?
Using different sized push rods
If the points in a magneto don’t open, what does that indicate?
Dead magneto
The cable on prop governors have a failsafe/default, what would it be?
Full fine
How does the shower of sparks delay start?
Advance points are grounded on start-up, retard points are used until the coming in speed
Which part of the exhaust assembly is used for carb and cabin heat?
Heat muff
How do you ensure valve and seat have a proper seat?
Valve lapping compound after grinding face and seat
