what are a pyranometer and pyrheliometer?

It looks like you're asking if a pyranometer is an instrument used for measuring the test. If you're referring to a test related to measuring solar radiation, then yes, a pyranometer is indeed used for measuring solar radiation, but let me clarify the context:

A pyranometer is an instrument used to measure global solar radiation, which includes both direct sunlight and diffuse radiation (sunlight scattered by the atmosphere). It's commonly used in applications like:

Solar energy measurements (to assess the amount of sunlight available for energy generation),
Weather stations (to monitor radiation levels),
Climate research (to study energy balance and atmospheric conditions).
So, if you're referring to a test of solar radiation or assessing the amount of solar energy, a pyranometer is the tool for the job.

Would you like more details on how a pyranometer works or how it's used in tests?