Which term describes the amount of force a...

🔍 Key Concepts

• Difference between power measured in horsepower and pulling force measured in tons or kilonewtons • What tugs are tested for when they are secured to a fixed point and pull at full power • Meaning of terms like brake horsepower and shaft horsepower (where in the power train they are measured)

💭 Think About

• Ask yourself: Which option sounds like a direct pulling force on a stationary object, rather than engine power output? • Think about tug performance sheets: what term is used to advertise how much they can pull when tied to a pier or bollard? • Which terms clearly include the word horsepower, and what does horsepower actually measure?

✅ Before You Answer

• Identify which choice(s) measure engine power rather than pulling force at the towline • Recall that the test for a tug pulling against a fixed bollard produces a value typically expressed in tons or kN, not horsepower • Eliminate any answer that refers specifically to internal engine measurements instead of external pulling capability

Which term describes the amount of force a tug can exert on a stationary pull?

Brake horsepower

Indicated horsepower

Bollard pull

Shaft horsepower