Aerm - 1344 Aircraft Reciprocating Engines Questions And Answers

AERM - 1344 Aircraft Reciprocating Engines Questions And Answers Oral - What is the main advantage of a horizontally opposed engine over a radial engine for powering modern aircraft? - ANS-Smaller frontal area and is easier to streamline Oral - How many throws are there in the crankshaft of a six cylinder horizontally opposed engine engine? - ANS-Six Oral - What kind of connecting rod management is used in a radial engine? - ANS-- A master rod connects the single throw of the crankshaft with a piston. - All Others are connected with link rods Oral - Of what material are most piston rings made? - ANS-Cast Iron Oral - What is the reason for using hydraulic valve lifters in an aircraft engine? - ANS-Lifters keep the clearance out of the valve operating mechanism decreasing wear of train components Oral - At what speed does the camshaft turn, relative to the crankshaft speed in horizontally opposed engine? - ANS-Camshaft turns at half of the crankshaft speed Oral - What kind of main bearings are used in a horizontally opposed engine? - ANS-- Steel backed - Lead Alloy Oral - On what stroke is the piston of a reciprocating engine when