Welcome to your Private Pilot – Chapter 2 Name Email Excessively high engine temperatures, either in the air or on the ground, will increase fuel consumption and may increase power due to the increased heat. result in damage to heat-conducting hoses and warping of cylinder cooling fans. cause loss of power, excessive oil consumption, and possible permanent internal engine damage. If the ground wire between the magneto and the ignition switch becomes disconnected, the engine will not operate on one magneto. cannot be started with the switch in the on position. could accidentally start if the propeller is moved with fuel in the cylinder. The basic purpose of adjusting the fuel/air mixture at altitude is to decrease the amount of fuel in the mixture in order to compensate for increased air density. decrease the fuel flow in order to compensate for decreased air density. increase the amount of fuel in the mixture to compensate for the decrease in pressure and density of the air. Generally speaking, the use of carburetor heat tends to decrease engine performance. increase engine performance. have no effect on engine performance. To properly purge water from the fuel system of an aircraft equipped with fuel tank sumps and a fuel strainer quick drain, it is necessary to drain fuel from the fuel strainer drain. lowest point in the fuel system. fuel strainer drain and the fuel tank sumps. Which condition is most favorable to the development of carburetor icing? Any temperature below freezing and a relative humidity of less than 50 percent. Temperature between 32 and 50 °F and low humidity. Temperature between 20 and 70 °F and high humidity The uncontrolled firing of the fuel/air charge in advance of normal spark ignition is known as combustion. pre-ignition. detonation. Excessively high engine temperatures will cause damage to heat-conducting hoses and warping of the cylinder cooling fins. cause loss of power, excessive oil consumption, and possible permanent internal engine damage. not appreciably affect an aircraft engine. Detonation may occur at high-power settings when The fuel mixture ignites instantaneously instead of burning progressively and evenly. an excessively rich fuel mixture causes an explosive gain in power. the fuel mixture is ignited too early by hot carbon deposits in the cylinder. One purpose of the dual ignition system on an aircraft engine is to provide for improved engine performance. uniform heat distribution. balanced cylinder head pressure. Time's upTime is Up! 0 Private Pilot – Chapter 3 Private Pilot – Chapter 1