When observed, which item indicates a snag...

Question 1 / 2707066636ee728f7522a1c518436

Question 1 of 2707066636ee728f7522a1c518436

When observed, which item indicates a snag or other underwater obstruction in a river?

Question 1 of 27070

When observed, which item indicates a snag or other underwater obstruction in a river?

🔍 Key Concepts

• How current and water flow behave when they meet a submerged obstruction in a river • The difference between upstream and downstream flow patterns around objects • How wind-driven surface conditions can look different from current-driven features

💭 Think About

• Think about how water flowing downstream will move when it hits something just below the surface—where does the disturbance point relative to the flow? • Which of these patterns could be caused by current interacting with a fixed object, and which are more likely caused by wind or your own vessel? • Consider how a snag might affect the water’s surface compared to open, unobstructed flow on a windy day.

✅ Before You Answer

• Verify which V-shape orientation (pointing upstream vs downstream) is associated with an object breaking or disturbing the current. • Check which options describe patterns that could be created by your own vessel rather than something stationary under the water. • Eliminate any choice that is more likely caused by wind on open water than by something solid under the surface.

Question 1 of 27070

When observed, which item indicates a snag or other underwater obstruction in a river?

V-shaped ripple with the point of the V pointing downstream

A small patch of smooth water on a windy day

V-shaped ripple with the point of the V pointing upstream

A smoothing out of the vessel's wake

Question 1 / 2707066636ee728f7522a1c518436

Question 1 of 2707066636ee728f7522a1c518436

When observed, which item indicates a snag or other underwater obstruction in a river?

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Question 1 of 27070

When observed, which item indicates a snag or other underwater obstruction in a river?