Chapter 5.2 - Exam Review Flashcards
Each Magneto in a dual ignition system fires (one/two) spark plug(s) in each cylinder?
One.
When the ignition is switched to BOTH once the Engine has started, how many spark plugs will be firing in each cylinder?
Two.
Normal engine operation is with (one/both) Magneto(s)?
Both.
Name two advantages of dual ignition?
- Safety factor in case one system fails.
- Better Combustion.
What is the main purpose of an impulse coupling fitted to one of the Magnetos?
To provide a hot, retarded spark for easier starting.
What provides a hot, retarded spark for easier starting?
Magneto.
The power source for the electric starter motor is the (magneto/battery)?
Battery.
When operating on one Magneto, there will be a sight (rise/drop) in RPM if the ignition system is operating correctly?
Drop.
If the ignition system is in the ‘R’ position, only the (right/left) Magneto will be ‘live’ and firing its spark plug?
Right.
One advantage of a fuel injection system is an absence of (vapour locks on hot days/carburettor ice)?
Carburettor Ice.
Which system provides more even distribution of the fuel-air mixture to the cylinders – fuel injection or a carburettor?
Fuel Injection.
Is the throttle response in an Engine equipped with a carburettor faster or slower than that in a fuel-injected Engine?
Slower.
What is the purpose of the oil system?
To provide oil lubrication to the Engine.
Having determined that the problem is not selection of an empty fuel tank, a zero fuel pressure reading is likely to indicate (engine-driven fuel pump/electric boost pump) failure?
Engine-driven fuel pump.
High-wing Aircraft normally utilise (gravity-fed/pump-fed) fuel systems?
Gravity-fed.
What is the purpose of the electric boost pump associated with pump-fed fuel systems in low wing Aircraft and/or fuel-injected Engines?
As an emergency backup.
True or False. Most Aircraft with gravity-fed fuel systems are fitted with a two-position fuel shut-off valve?
True.
To prevent any restriction of fuel flow to the Engine and/or collapsed tanks due to differential pressures, fuel tanks are fitted with (drains/vents)?
Vents.
In pump-fed fuel systems, the electric boost pump should be (ON/OFF) for all takeoffs and landings, and when switching tanks?
ON.
A blocked oil cooler can result in (dirty oil being circulated/Engine overheating)?
Engine Overheating.
Air cooling of an Engine is least effective at (high/low) power and (high/low) Airspeed?
- High Power.
- Low Airspeed.
What action should a Pilot take if the instruments indicate that the cowl flaps might have stuck open during descent?
Warm the Engine by increasing power and/or reduce Airspeed.
If the cowl flaps are stuck in the closed position during a climb, the Engine will most likely get too (hot/cold) and the Pilot will need to take action to (warm/cool) it?
- Hot.
- Cool.
Vapour locks in the fuel lines are more likely to occur at (high/low) atmospheric pressures and in (high/low) temperature conditions?
- Low Pressures.
- High Temperatures.
Are vapour locks in the fuel system at high Altitudes more likely in Aircraft with pump-fed or gravity-fed fuel systems?
Pump-fed.
In pump-fed fuel systems, will the additional use of the boost pump at Altitude increase or decrease the risk of vapour locks due to low atmospheric pressures?
Decrease the risk.
The grade of AVGAS, 100 LL, is coloured (blue/green) and AVTUR is coloured (blue/green/clear)?
- Blue.
- Clear.
The (higher/lower) the octane rating of fuel, the greater the stability of the fuel-air mixture?
Higher.
Fuels with a (high/low) octane rating are more prone to detonation?
Low.
Fuel of a higher grade than specified is likely to cause (detonation/spark plug fouling)?
Spark Plug Fouling.
Could using the wrong type of oil, or mixing aviation oils with other types for use in an Aircraft piston Engine, damage the Engine?
Yes.
What is the term used to describe an oil’s flow properties?
Viscosity.
(High/Low) viscosity oils flow more freely?
Low.
Oil is more sluggish in (cold/hot) weather?
Cold.
(High/Low) temperatures decrease an oil’s viscosity, thus allowing it to flow more freely?
High.
True or False. Different grades of single viscosity oil are used according to whether the temperature is hot or cold?
True.
For what purpose are multi-grade oils produced?
The oil can be used in both hot and cold temperatures.
True or False. Inadequate lubrication is a likely result of using either a higher or lower grade of oil than specified?
True.
Name two contaminants of fuel?
- Water.
- Other particles.
What is the main advantage in filling the fuel tanks overnight?
Reduces the amount of condensation buildup.
Excess oil in the combustion chamber is indicated by (blue/black) smoke from the exhaust?
Blue.
When is the oil level checked and how is this done (2)?
- Preflight Inspection.
- Checking level on a dipstick.
An oil level above the maximum increases the possibility of (spark plug fouling/Engine overheating)?
Spark Plug Fouling
One cause of high oil temperature reading is too (high/low) an oil quantity?
Low.
In flight, if a total loss of oil pressure is accompanied by a rapid rise in oil temperature, what action should a Pilot take and why (2)?
- Reduce Power Immediately.
- Land as soon as possible since Engine Failure is imminent.
A continuing low oil pressure in conjunction with a normal oil temperature is likely to indicate (a faulty oil pressure gauge/a low oil quantity)?
A faulty Oil Pressure Gauge.
A fluctuating oil pressure accompanied by a high oil temperature is a likely indication of (the wrong type of oil/a low oil quantity)?
A low Oil quantity.
Too low an Airspeed at high power settings is likely to lead to (high/low) cylinder head temperatures?
High.
If an Aircraft is not fitted with a CHT gauge, how can the Pilot tell if the Engine is overheating? What is the likely consequence of Engine overheating (2)?
- Very high Oil Temperature reading on gauge.
- Likely to lead to Engine Failure.
What action can a Pilot take if the CHT or oil temperature gauges indicate that the Engine is overheating (4)?
- Reduce Power.
- Increase Airspeed.
- Open Cowl Flaps.
If the Engine bearings or oil pump failed, this would most likely show up as a loss of (oil temperature/oil pressure)?
Oil Pressure.
Failure of the drive cable is a possible malfunction of a (mechanical/electrical) tachometer?
Mechanical.
What is the purpose of a fuel pressure gauge?
To indicate engine-driven fuel pump is working and providing fuel to the Carburettor.
True of False. EGT gauges are used to monitor the temperature of the cylinder heads?
False.
True of False. An EGT gauge is primarily used to accurately set the fuel-air mixture in cruise?
True.
Too lean a fuel-air mixture for a particular power setting is likely to cause (high/low) cylinder head temperatures?
High.
A blocked fuel vent is most likely to be indicated by a (sudden/gradual) loss of fuel pressure?
Gradual.
