Reciprocating Engines
This type of bearing is the best of those listed for reducing friction while carrying both thrust and radial loads
Deep-groove ball.
This is the advantage mineral base lubricants have over vegetable oil base lubricants when used in aircraft engines?
Chemical stability.
This causes a decrease in volumetric efficiency
what is part throttle operation
When conducting spectrometric oil analysis, regarding a specific particle type, which is of the greatest concern?
. The amount of particles found compared to the last test
A soft iron corer
What does the magnetic circuit of a magneto consist of
Which bearing is least likely to be a roller or ball bearing?
Master rod bearing (radial engine).
Main Bearing
connecting rod bearing
High tooth pressures and high rubbing velocities, such as occur with spur-type gears, require the use of
an EP lubricant
To aid in cooling a reciprocating engine
What is the purpose of an augmenter
Provides a mounting surface for engine accessories and confines potential fires
What is the purpose of a Firewall
The number of degrees between the neutral position of the rotating magnet and the position where the contact points open
What is E Gap
The operating temperature valve clearance of a radial engine as compared to cold valve clearance is
greater.
Why manufacturers recommend turbine engine oil service within a specified short time period after shutdown.
Prevent over servicing
If a reciprocating engine has suffered a major internal failure and must be replaced, which of the following appliances must always also be replaced, rather than simply cleaned and inspected?
Oil Cooler and Propeller Governor
This maximum distance the points open in a magneto
What is "points gap"
The five events of a four-stroke cycle engine in the order of their occurrence are
intake, compression, ignition, power, and exhaust.
The type of oil pumps most commonly used on turbine engines are classified as
Positive Displacement
Cylinder head, cylinder barrel and inside the piston
Where are cooling fins located
Fully closed even if they are solenoid operated
Advance the spark and decrease its intensity
What is the result of increasing the gap of the breaker points
The large mass of the cylinder head expands more when heated than the smaller mass of the cylinder barrel
What is a Choked or Taper ground cylinder
This has a significant effect on the oil consumption of a specific engine
Engine RPM
Lubricant Characteristics
Fully open during ground operations
what is the position of cowl flaps
It utilizes a rubber shock mount to reduce vibration
What are engine mounts
Wear of the cam followers
What is magneto timing drift