Question

Instrument used for measuring specific gravity of liquid fuels

Answer 1

Answer:

a hydrometer

Explanation:

A hydrometer is an instrument used for measuring the relative density of liquids based on the concept of buoyancy. ... A hydrometer usually consists of a sealed hollow glass tube with a wider bottom portion for buoyancy, a ballast such as lead or mercury for stability, and a narrow stem with graduations for measuring.