Engine: General Subjects

1. A The bob has a cupped end and sinks in the liquid when lowered by the tape.
2. B The bob has a pointed end and sinks in the liquid when lowered by the tape.
3. C The bob has a cupped end and floats on the surface of the liquid when lowered by the tape.
4. D The bob has a pointed end and floats on the surface of the liquid when lowered by the tape.

Tip: press A-D to answer