3 Piston Engines Lubrication📄 Detailed Notes⚡ Cheat Sheet Results📄 Notes ⚡ Cheat Sheet📄 Notes ⚡ Cheat SheetQ1. The lubricating system of an air cooled piston engine is used to: keep the engine warm. operate constant speed propellers. to operate the fuel control unit. reduce internal friction and provide cooling. Q2. The lubricating system of an aircraft engine is used to operate ground adjustable propellers. prevent inter-crystalline corrosion aid in dissipation of heat keep the engine warm Q3. For internal cooling, reciprocating engines are especially dependent on: a properly functioning thermostat the circulation of lubricating oil a rich fuel/air mixture a lean fuel/air mixture Q4. The lubricating system of an air cooled piston engine is used to: operate constant speed propellers keep the engine warm reduce internal friction and provide cooling to operate the fuel control unit Q5. A magnetic plug in an engine oil system can be used to: prevent metallic particles from entering the oil system collect carbon found in the oil collect static electricity collect ferrous particles Q6. The oil system for a piston engine incorporates an oil cooler that is fitted : after the pressure pump but before the oil passes through the engine after the oil has passed through the engine and before it enters the sump in the return line to the oil tank after the oil has passed through the scavenge pump between the oil tank and the pressure pump Q7. The reading on the oil pressure gauge is the: difference between the pressure pump pressure and the scavenge pump pressure pressure of the oil on the inlet side of the pressure pump pressure of the oil on the outlet side of the pressure pump pressure in the oil tank reservoir Q8. In very cold weather, a slightly higher than normal engine oil pressure during startup: requires an oil change. is acceptable, if it decreases after startup. is unacceptable and requires the engine to be shut down. is unacceptable but does not require the engine to be shut down. Q9. Viscosity is the flow velocity inside the oil lines the temperature dependence of an oil the tendency of a liquid or gas to resist flow the pressure resistance of an oil Q10. For a given type of oil, the oil viscosity depends on the: oil temperature outside pressure oil pressure quantity of oil Q11. The lubrication system of an aircraft engine is used to: Operate ground adjustable propellers Keep the engine warm Aid in dissipation of heat Prevent intercrystalline corrosion Previous Submit The Test← Previous QuizNext Quiz →