____ is not installed on the emergency switchboard.

A.install oversized rings

B.hone the cylinder liner to allow ring installation

C.compress the rings tighter with a compressing tool

D.file the ends of the rings

A.the production of high pressure gases

B.the removal of expended combustion gases

C.the admission of air to the cylinder

D.all of the above

A.monitoring signal

B.inverse signal

C.reverse signal

D.feedback signal

A.thrust block

B.sounding rod

C.connecting rod

D.push rod