How much to you know about engine technology

OH48Lt wrote:
The answers to questions 7 and 13 are wrong.

Spark plugs fire on the compression stroke, several degrees BTDC, just before the power stroke begins at TDC.

Pistons are connected to connecting rods, not the crankshaft.

Thank you. And a steam engine is not an internal combustion engine. the combustion is a one time sequence then it just makes steam. the steam is what moves the cylinders. There were a few others I questioned, but forgot what they were because I gave up.