High-speed, multi-cylinder, diesel engines...

Question 1 / 270705eccefa1bacbc34ba4d475cd

Question 1 of 270705eccefa1bacbc34ba4d475cd

High-speed, multi-cylinder, diesel engines commonly use counterweights placed opposite to the crankpins to __________.

Question 1 of 27070

High-speed, multi-cylinder, diesel engines commonly use counterweights placed opposite to the crankpins to __________.

🔍 Key Concepts

• Role of crankshaft counterweights in rotating machinery • Difference between centrifugal forces of rotating parts and inertia forces of reciprocating parts • How engine designers achieve dynamic balance in multi‑cylinder high‑speed diesels

💭 Think About

• Think about which parts of the crank/rod/piston assembly are rotating versus which parts move back and forth, and which of these the counterweights can directly offset • Ask yourself: when a crankpin and part of a connecting rod rotate, what kind of force do they create, and how can a weight directly opposite them help? • Consider which option describes balancing of forces during rotation of the crankshaft itself, not the end result on the whole engine structure

✅ Before You Answer

• Identify which answer choice explicitly mentions centrifugal force during rotation • Eliminate any options that describe effects the counterweights cannot directly prevent, such as completely removing bearing loads or all inertia forces • Check which choice matches the idea of balancing the rotating masses on the crankshaft rather than the rocking of the entire engine on its mounts

Question 1 of 27070

High-speed, multi-cylinder, diesel engines commonly use counterweights placed opposite to the crankpins to __________.

prevent bearing loads

provide dynamic balance by equalizing centrifugal force

counteract inertia forces

provide a balance of rocking couples around the crankshaft

Question 1 / 270705eccefa1bacbc34ba4d475cd

Question 1 of 270705eccefa1bacbc34ba4d475cd

High-speed, multi-cylinder, diesel engines commonly use counterweights placed opposite to the crankpins to __________.

Back

Question 1 of 27070

High-speed, multi-cylinder, diesel engines commonly use counterweights placed opposite to the crankpins to __________.