Air Quiz

In an air distillation plant, water vapor and oxygen are removed from air prior to fractional distillation, as these components freeze under cryogenic conditions and clog the pipes

• True

• False

In the fractional distillation of air, the cryogenic conditions are achieved via compression, followed by cooling and rapid expansion of the air.

• True

• False

The purpose of the high pressure fractionating column in an air distillation plant is to:

• separate oxygen from carbon dioxide and nitrogen

• remove particulates from the air

• perform an initial separation of air of its lighter components of nitrogen and argon from the heavier component of oxygen

• separate air into its three main components of nitrogen, argon and oxygen

Which of the following is NOT a utility use of air?

• cooling

• operate valves

• consumed as a raw material

• operate pneumatic tools

Which of the following is not governed by the ISA standards for instrument air production?

• moisture content

• hydrocarbon content

• nitrogen content

• particulates content

Which of the following is not a type of dryer used in instrument air production?

• vacuum

• mechanical

• chemical

• adsorption

In a chemical dryer, the adsorbent material cannot be regenerated and must be continuously replenished.

• True

• False

Which of the following is NOT removed from air during instrument air production?

• Hydrocarbons

• Particulates

• Water

• Carbon Dioxide

An intercooler is used to remove moisture from air and reduce the work done between stages of compression

• True

• False

The pressure swing adsorption process of air separation, operates on the principle that under low pressures gases are attracted to solid surfaces

• True

• False