Critical speed in diesel engines occurs when...

Study

Question 1 of 205eccefa1bacbc34ba4d475e1

Critical speed in diesel engines occurs when engine torque pulsations become __________.

Back

Question 1 of 20

5eccefa1bacbc34ba4d475e1

Critical speed in diesel engines occurs when engine torque pulsations become __________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

• Critical speed of rotating machinery (what it means physically) • Relationship between forcing frequency (torque pulsations) and natural frequency of a shaft or crankshaft • How resonance affects vibration amplitude in marine diesel engine crankshafts

💭 Think About

• Ask yourself: At what condition do small, repeated torque pulsations build up into very large crankshaft vibrations? • Which choice describes a situation where the crankshaft’s own tendency to vibrate lines up with the engine’s torque pulses? • Which answers are just describing TYPES of motion, and which answer is describing the specific CONDITION that creates critical speed?

✅ Before You Answer

• Be clear on the definition of critical speed in rotating machinery – it’s tied to a specific frequency relationship, not just any vibration. • Identify which option mentions a natural frequency or an equivalent idea of the shaft’s own vibration rate. • Check which choices merely name vibration directions or modes (fore‑and‑aft, whipping, rocking) without specifying the underlying resonance condition.

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed

Study

Question 1 of 205eccefa1bacbc34ba4d475e1

Critical speed in diesel engines occurs when engine torque pulsations become __________.

Back

Question 1 of 20

5eccefa1bacbc34ba4d475e1

Critical speed in diesel engines occurs when engine torque pulsations become __________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed