when checking cranking compression, which of the following malfunctions is either confirmed or ruled out by…

when checking cranking compression, which of the following malfunctions is either confirmed or ruled out by performing a wet test on a cylinder with low compression?\n\no a. worn piston rings\no b. a hole in the top of the piston\no c. a burned exhaust valve\no d. a leaking cylinder head gasket\n\ncertainty? : oc=1 (unsure: <67%) oc=2 (mid: >67%) oc=3 (quite sure: >80%)

when checking cranking compression, which of the following malfunctions is either confirmed or ruled out by performing a wet test on a cylinder with low compression?\n\no a. worn piston rings\no b. a hole in the top of the piston\no c. a burned exhaust valve\no d. a leaking cylinder head gasket\n\ncertainty? : oc=1 (unsure: <67%) oc=2 (mid: >67%) oc=3 (quite sure: >80%)

Answer

Brief Explanations:

A wet compression test involves adding oil to the cylinder. If the compression increases significantly, worn piston - rings are likely the cause as the oil temporarily seals the gaps between the piston rings and the cylinder wall. A hole in the piston, a burned exhaust valve, or a leaking cylinder head gasket would not be directly affected by adding oil in the same way.

Answer:

A. Worn piston rings