mixture

#1. Weakening the mixture below the best fuel/air ratio will cause the engine power to:

• ADecrease.
• BIncrease initially, but decrease below take off power.
• CIncrease.
• DBe unaffected by altitude increase.

#2. For maximum endurance the mixture control should be set to:

• AWeak.
• BThe chemically correct state.
• CBetween rich and weak.
• DRich.

#3. An air/fuel ratio of 9:1 would be considered:

• AChemically correct.
• BExtravagant.
• CRich.
• DWeak.