Engines

Question 1

Detonation (what is it?)

Answer 1

explosive combustion. result: roughness, loss of power, cylinder failure

Question 2

Detonation (cause)

Answer 2

overheated engine, or low fuel grade/over lean mixture

Question 3

Detonation (solution)

Answer 3

lower throttle, enrich mixture, lower nose, cool engine

Question 4

Preignition (what is it)

Answer 4

ignition happens too soon. roughness, high temperatures

Question 5

Preignition (cause)

Answer 5

hot spots (carbon deposits), cracked spark plug, damage to combustion chamber

Question 6

Preignition (solution)

Answer 6

lower throttle, enrich mixture, lower nose, cool engine

Question 7

Oil pressure

Answer 7

after start, pressure must rise within 30 (warm day) - 60 seconds (cold). Temperature comes in a few minutes

Question 8

Ammeter (what does it show)

Answer 8

Is the alternator winning or losing?

Question 9

Loadmeter (what does it show)

Answer 9

How much total load is on the electrical system?

Question 10

Carb ice (when is there risk)

Answer 10

Most common at <70F OAT and 80% humidity, during low RPM approach. Can happen up to 100F.

Question 11

Carb ice (First sign)

Answer 11

Lowering of RPMs

Question 12

Supercharger/Turbo charger

Answer 12

Compresses air (powered by engine or by exhaust) in order to get sea level performance at altitude