Chapter 2 Section B
Study these flashcardsFree · spaced repetition · iPhone, Android, Mac & web
All cards
1
Identify the four stroke operating cycle step shown in each of the following illustrations.
A. Power
B. Intake
C. Exhaust
D. Compression
B. Intake
C. Exhaust
D. Compression
2
As an airplane climbs, do you enrich or lean the mixture to maintain an optmum fuel/air ratio?
You lean the mixture due to there being less air.
3
What is your first indication of carburetor ice in an airplane equipped with a fixed-pitch propeller?
A slight loss of performance and RPM.
4
Explain why an engine equipped with a fuel injection system is less susceptible to indution icing than one equipped with a float-type carbureto?
Because the fuel injection system does not have a venturi section, and there is no carburetor to ice in the first place.
5
What is a magneto?
An electrical generator that generates a high voltage spark by rotating permanent magnets inside a coil
6
The uncontrolled, explosive ignition of the fuel/air mixture within the cylinder's combustion chamber describes which type of abnormal combustion? What actions can you take while airborne to help correct for this problem?
Detonation. Reduce power, enrich fuel mixture, and lower the nose
7
Select the true statement regarding fuel systems.
- High- and low-wing airplanes with a carburetor typically have gravity-feed systems.
- An electric fuel pump provides fuel under pressure to the fuel control unit after engine start.
- A fuel-pump system is used in airplanes with jeul injection systems to proive sufficient pressure to the injector nozzles.
8
True/False If the fuel grade specified for you airplane is not available you can use a higher fuel grade
True, consult AFM
9
Describe at least two functions performed by the engine oil system
Lubrication, cooling and cleaning
10
If a constant-speed propeller is set to a high RPM, will the blade pitch (angle) be high or low?
low (fine) pitch
11
True/false. To prevent internal engine damage in an airplane equipped with a constant-speed propeller you should avoid low RPM setting with a high manifold pressure setting.
True
12
Immediately after engine start you notice that the ammeter shows a discharge. Is this normal? Why or why not?
No, as the alternator should be generating enough power to charge the battery and power all systems