Bakers Oral Powerplant Prep | 300 Questions with 100% Correct Answers | Verified | Latest Update 2024 | 29 Pages

How are reciprocating engines classified? - 1) Cylinder Arrangement w/ respect to crankshaft (in-line, V-type, radial and opposed) 2) Method of cooling (liquid cooled, or air cooled) what are the different types of piston rings - compression rings, oil control rings and scraper rings what are the main causes of a cylinder having low compression - broken piston rings, rings that are not seated properly, burnt valves and poorly seating valves what is the purpose of the oil control rings? - they are used to control the thickness of the oil film on the cylinder walls what may be the result of installing piston rings incorrectly - excessive oil consumption what type of piston rods are commonly found in radial engines - a master and articulating rod assembly what type of bearings are in general use in reciprocating engines - plain, roller and ball bearings what is the indication of valve blowby - a hissing or whistle when pulling the propeller through by hand what is the purpose of using more than one spring for valve closing - valve springs will resonate (or surge) at certain engine speeds.