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Refrigeration > Refrigeration Categorisation > Flashcards

Refrigeration Categorisation Flashcards

1
Q

Which of the following Refrigerants is flammable?
R134a
R404a
R290
R22

A

R290
(Hydro-carbons)

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2
Q

A Refrigerant that is a Zeoptropic Blend will …

A

Separate in the evaporator
(Evaporate at different temps/rates)

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3
Q

Which of the following Refrigerants is NOT flammable
R717
R404a
R290
R600a

A

R404a
(Zeoptropics)

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4
Q

Which of the following Refrigerants is being phased out under EC Reg 2037/2000
R134a
R22
R404a
R290

A

R22

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5
Q

Which Refrigerants are banned under the Montreal Protocol

A

CFC’s
(Ozone depleting)

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6
Q

Which of the following refrigerants is classed as toxic below 400ppm
R134a
R717
R22
R404a

A

R717
(ammonia)

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Refrigeration (6 decks)

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