$5.$ What type of dynamic balancing is typically used for turbines?

$-$ A$)$ Single$-$plane balancing

$-$ B$)$ Multi$-$plane balancing

$-$ C$)$ Progressive balancing

$-$ D$)$ Sequential balancing

$6.$ How does a split$-$pin crankshaft design aid in balancing inline four$-$cylinder engines?

$-$ A$)$ By allowing for overlapping power strokes

$-$ B$)$ By distributing the mass more evenly

$-$ C$)$ By reducing the primary force imbalances

$-$ D$)$ By increasing the engine's thermal efficiency