Author Question: The steam grid humidifier works by: A) Boiling water in a pan to steam. B) Passing air over a ... (Read 167 times)

mrsjacobs44 · **on:** Jul 24, 2018

The steam grid humidifier works by:

A) Boiling water in a pan to steam.
B) Passing air over a wetted element.
C) Spraying water through nozzles and atomizing it to steam.
D) Introducing live steam into the air stream though a grid of orifices.

Question 2

Refrigeration components required for rack systems that are not needed for single-component systems include:

A) Suction and discharge valves. B) Suction line accumulators and liquid receivers.
C) Filter driers and sight glasses. D) Oil separators and oil level controls.