Question

Two technicians are discussing using a refractometer to measure a battery's specific gravity. Technician A says that the refractometer reading is determined at the point of the scale where the dark and light areas meet. Technician B says that the reading is determined by where a dial points on a scale. Who is correct?

Answer 1

Answer:

Technician A

Explanation:

A refractometer is a device which tells us the concentration of a substance within a given solution. The refractometer works using the refraction principle.

To read the battery's specific gravity using the refractometer, we have to point it towards a source of light then focus till we can visibly see the scale.

The scale value on a refractometer is read at a point where the dark and the light portions meet.

So technician A is correct