Question

after placing the piston at top dead center, you will not know if it is on the top of the compression stroke or the exhaust stroke until you pressurize the cylinder (unless the engine is equipped with a distributor and you can see where the rotor is pointing)
select one:
true
false

Explanation:

When the piston is at top - dead - center, without pressurizing the cylinder (or using a distributor to check rotor position), it's impossible to tell if it's on the compression or exhaust stroke. This is because at top - dead - center in both strokes, the piston position is the same. Pressurizing the cylinder will cause different behaviors (e.g., in compression stroke, pressure builds up more significantly as the piston is about to compress the air - fuel mixture; in exhaust stroke, pressurizing may not show the same compression - like pressure increase). If there is a distributor, the rotor position can indicate the correct stroke as it is timed with the engine's firing order.

Answer:

True