Engine Lubrication Systems Prep Questions and Answers 100% Pass

Engine Lubrication Systems Prep Questions and Answers 100% Pass How are the oil fillers marked on reciprocating engines according to aviation standards? They are labeled "oil" following the guidelines set by 14 CFR part 23. In a dry sump reciprocating engine, where is the oil temperature regulator usually situated? It is typically placed between the outlet of the scavenger pump and the oil tank. How is lubrication typically applied to the gears within the accessory section of an engine? Lubrication is generally provided by oil that is either splashed or sprayed onto the gears. What is the outcome if an oil filter becomes fully obstructed? The system will allow oil to bypass the filter and flow at the normal rate. In a reciprocating engine oil system, where is the oil temperature monitored? The temperature is measured at a point after the oil has exited the cooler. 2 What component is adjusted to maintain the desired oil pressure in an engine's lubrication system? The oil pressure relief valve is adjusted to control the system's pressure. Where does the oil encounter the temperature control valve in a dry sump engine? At the inlet of the oil cooler. What function does the hopper serve in some dry sump oil tanks? It helps to warm the oil more quickly to operating temperatures. What happens when an oil filter element is completely blocked? The bypass valve opens to allow unfiltered oil to continue flowing to the engine. How are the valve assemblies in opposed reciprocating engines typically lubricated? They are lubricated by a pressurized oil system. What is the purpose of using an oil dilution system in cold weather conditions? It mixes gasoline with the oil to reduce its viscosity, making it easier to start the engine. 3 How is the viscosity of oil typically measured? Viscosity is determined by the time it takes for a specific volume of oil to flow through a calibrated orifice at a set temperature. What is the main source of heat absorbed by the lubricating oil in a reciprocating engine? The oil primarily absorbs heat from the pistons and cylinder walls. Which type valve prevents oil from entering the main accessory case when the engine is not running? Check.