Ch.12 Other Refrigeration Components

Which one of the following units includes equipment necessary to reject the absorbed heat and reclaim the refrigerant vapor by condensing it back into a liquid?

• Absorbing

• Condensing

• Evaporator

• Venting

All liquids expand when heated and occupy more space. This is called the ___ expansion principle.

Liquid level in a liquid receiver should never be more than ___% of its capacity when holding the entire charge of the system.

Which of the following refrigeration service wrench type is the most popular for servicing refrigeration systems?

• Box-end

• Flare-nut

• Open-end

• Ratchet

What is the correct term for when a suction service valve is turned so the inlet opening is closed off, preventing refrigerant vapor from entering the valve, but allowing the gauge port to be open to the compressor?

• Backseated

• Broken

• Cracked

• Frontseated

The discharge service valve controls which of the following?

• High-pressure vapor entering the compressor

• High-pressure vapor leaving the compressor

• Low-pressure vapor entering the compressor

• Low-pressure vapor leaving the compressor

A gauge manifold is used to determine refrigeration system ____.

• pressures

• temperatures

• current draw

• voltage drop

The compound gauge is usually blue, and the high-pressure gauge is usually ____.

• green

• orange

• red

• yellow

The primary factor in the formation of acids and sludge, which can lead to copper plating and corrosion is ____.

• air

• gas

• moisture

• refrigerant

A small window placed in the liquid line on commercial refrigeration systems to provide a view of the flowing liquid is called the ____ glass.

• display

• mirror

• sight

• spy