To get the best reading, the refrigerant sensor should be located where?
A) Where the leak is more likely to occur B) Where the leak is less likely to occur
C) On the top near the valve D) On the bottom of the tank
[Ques. 2] Airflow pattern must be taken into account so that the refrigerant sensor is:
A) Mounted on the ceiling by the potential leak source.
B) Mounted near the door by the potential leak source.
C) Mounted downstream from the potential leak source.
D) Mounted upstream from the potential leak source.
[Ques. 3] Which pressure relief device works primarily by temperature?
A) Rupture disk B) Pressure relief valve C) Fusible plug
[Ques. 4] To avoid releasing large quantities of refrigerant inside a mechanical room, ANSI/ASHRAE Standard 15-2010 specifies that rupture disks:
A) Should be piped outside the building.
B) Should be controlled through a hand valve.
C) Should only be used on equipment located outside.
D) Should be replaced with solid brass plugs.
[Ques. 5] What type of sensor is most often used to detect very low parts per million for toxic refrigerants?
A) Photoacoustic infrared (PIR) B) Nondispersive infrared (NDIR)
C) Electrochemical (EC) sensors D) Ceramic metal oxide semiconductor (CMOS)
Quick Reply
