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Study MCQ
Refrigeration and Air Conditioning Technician
REFRIGERANT AND INSULATION
Set 7
Set 7
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Q10267
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Which type of insulating material is used for making ice box to cool beverages?
A
Tar felt
B
Glass wool
C
Fibre glass
D
Thermocole
Q10268
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Why universal numbering system is adopted for different refrigerants?
A
Identifying the refrigerant's names
B
Mixing the lubricant combination
C
Fixing the drier combination
D
Identify the systems
Q10269
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What is the effect of releasing HCFC refrigerants to atmosphere?
A
Increases ODP and GWP
B
Decreases GWP and ODP
C
Decreases TEWI
D
Inactive to TEWI
Q10270
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What is the effect of releasing HFC refrigerants to the atmosphere?
A
Increase global warming potential
B
Increase ozone depleting potential
C
Decrease green house effect
D
Improve water pollution
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