What statement best represents the...

Question 1 / 270705eccefa5bacbc34ba4d487a3

Question 1 of 270705eccefa5bacbc34ba4d487a3

What statement best represents the characteristics of an innage tape and bob for the purposes of taking a vented tank sounding?

Back

Question 1 of 27070

What statement best represents the characteristics of an innage tape and bob for the purposes of taking a vented tank sounding?

🔍 Key Concepts

• Innage vs. ullage soundings: what each one measures in a tank • How a tape and bob actually make contact with the liquid to show a reading • Why the shape of the bob (pointed vs. cupped) and whether it sinks or floats matters for getting an accurate depth

💭 Think About

• Think about whether you want the bob to stop at the surface or go below the surface to measure how deep the liquid is from the tank bottom. • Ask yourself: for an innage measurement, are you measuring the liquid height or the empty space above it? How does that affect what the bob must do in the liquid? • Consider what a cupped end vs. a pointed end would do when the bob touches the liquid—how would each help you see the exact level on the tape?

✅ Before You Answer

• Make sure you are clear that innage is depth of liquid from the bottom, not the empty space on top. • Verify whether an innage bob should sink through the liquid or float on the surface to give a correct depth reading. • Check which bob shape (pointed or cupped) is commonly used to get a sharp, accurate mark at the liquid level on the tape.

Question 1 of 27070

What statement best represents the characteristics of an innage tape and bob for the purposes of taking a vented tank sounding?

The bob has a pointed end and floats on the surface of the liquid when lowered by the tape.

The bob has a cupped end and sinks in the liquid when lowered by the tape.

The bob has a cupped end and floats on the surface of the liquid when lowered by the tape.

The bob has a pointed end and sinks in the liquid when lowered by the tape.

Question 1 / 270705eccefa5bacbc34ba4d487a3

Question 1 of 270705eccefa5bacbc34ba4d487a3

What statement best represents the characteristics of an innage tape and bob for the purposes of taking a vented tank sounding?

Back

Question 1 of 27070

What statement best represents the characteristics of an innage tape and bob for the purposes of taking a vented tank sounding?