Maintenance quiz: Spring 2023

1. The minimum equipment requirements for a VFR aircraft used in private operations can be found in:
   1. the Part 91 MOS
   2. the Part 43 MOS
   3. Part 119 of the CASR
   4. Part 138 of the CASR
2. In a turbo-charged piston aircraft, leaning is accomplished:
   1. automatically during climb with no input from the pilot
   2. by monitoring the ITT indication, fuel flow and CHT
   3. by reference to climbing CHTs
   4. by reference to fuel flow alone
3. What is the purpose of a lean-of-peak magneto check?
   1. to check the performance of the complete ignition system by putting it under stress with extremely lean mixture
   2. to make sure the engine can cope without adverse effects if a magneto fails in cruise flight
   3. to make sure all ignition leads are functioning properly
   4. to make sure all spark plugs are operating properly
4. Many manufacturers advise pilots to lean their engines to 50°F rich-of-peak at cruise power. This may have adverse effects on cylinder life because it is when:
   1. the CHT is highest
   2. the cylinder pressure is lowest
   3. the fuel flow is highest
   4. the cooling airflow to the cylinders is best
5. In turbine engines, there are several methods used to stop fuel freezing in flight:
   1. using a fuel additive such as Prist
   2. using a fuel or oil heater whereby the fuel is pumped through an oil cooler (different passages) and picks up heat from the hot oil
   3. pumping fuel through a plenum located near the compressor
   4. both a and b
6. Symptoms observed during the onset of carburettor ice may include:
   1. an increase in RPM
   2. a decrease in manifold pressure (if gauge is fitted)
   3. a decrease in RPM and an increase in manifold pressure (if gauge is fitted)
   4. severe vibration in the airframe
7. An aircraft loaded to its most aft CoG will:
   1. fly more slowly than normal in the cruise
   2. fly faster than normal in the cruise
   3. be more stable in turbulence
   4. have heavy pitch forces in turbulence
8. To find the cylinder that is causing a rev drop during a magneto check, several methods can be used:
   1. put a lead pencil mark on each exhaust pipe near the cylinder, run the engine on the rough magneto for a minute and the cold cylinder marked with lead pencil will not have changed colour
   2. run the engine on the rough magneto for a minute, then use a digital thermometer on the rocker hats to find the cold cylinder
   3. for engines that have an engine management system installed, run the engine on the rough magneto and observe which cylinder has the coldest EGT
   4. for engines that have an engine management system installed, run the engine on the rough magneto and observe which cylinder has an increase in the ITT
9. On a light aircraft with tricycle undercarriage, nose-wheel shimmy may be caused by:
   1. the nose tyre below required pressure
   2. the nose wheel shimmy dampener needing service or overhaul
   3. torque link bearings needing replacement
   4. both b and c
10. A new fuel for piston engines called GAMI G100UL is an unleaded fuel that:
    1. is approved by the FAA for use in all piston-powered aircraft without further approval required
    2. cannot be used without an STC from the manufacturer
    3. all piston engine manufacturers have approved
    4. cannot be used in piston engine helicopters
11. LAME licence holders of Part 66 licences are subject to various exclusions. Where are the most common places to find a description of the exclusions?
    1. the Part 66 MOS
    2. the LAME licence
    3. myCASA
    4. both a and b
12. What is the purpose of exclusions on a LAME licence?
    1. to indicate a licence holder is excluded from certifying for the specified task
    2. to indicate the specified task can only be carried out under supervision
    3. to indicate that on-the-job training is required before the LAME can have the exclusion removed
    4. to ensure the LAME attends an approved course in a Part 147 training organisation for the specified task
13. A twin-engine aeroplane with a MTOW less than 2,000 kg:
    1. must be weighed every 3 years in accordance with CAO 100.7
    2. must have the weight and balance (W&B) validated every 3 years
    3. must be weighed or have the W&B validated if calculations of modifications indicate the empty W&B changes by more than the amount permitted by CAO 100.7
    4. need not be weighed after an initial weighing for issuing a certificate of airworthiness

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