When a crankshaft throw is positioned at exactly TDC, how much mechanical leverage can it apply to the crankshaft?
A) none
B) minimum
C) 50% of maximum
D) maximum

Question

Quizplus · Accepted Answer

When a crankshaft throw is positioned at exactly Top Dead Center (TDC), it is aligned with the piston and cylinder axis, meaning it cannot apply any mechanical leverage to the crankshaft because the force from the piston is directed straight down the axis, not at an angle that would produce rotational motion.

When a Crankshaft Throw Is Positioned at Exactly TDC, How