Question

binder jetting technologies (bj)
use the information below to answer the questions to the right.
binder jetting requires no polymers. you can use sand or metal as your
building agent. it also requires no direct heat.
the process of binder jet printing includes distributing a fine layer of
powder onto the print bed. as each layer is spread, the print bed will
lower until the final layer is distributed.
a binding agent is a liquid that takes powder and glues it together to
make it stick together, and that is how you get the first layer and so on.
the print head knows where the binding agent is to be applied.
the binding agent will need to cure and harden, there is no laser or heat
involved in this process.
by not using any heat, you are eliminating any opportunity for any
internal stress on your print.
on a binder jet printer, what lowers with each layer
applied?
the print bed
the print heads
the heat on the material

Explanation:

As per the text, during Binder Jet printing, as each layer is spread, the print bed lowers until the final layer is distributed.

Answer:

the print bed