How to check a thermocouple?

Review Questions for Grade 4 Refrigeration

Flashcard
•
Construction
•
Vocational training
•
Medium

Stephen Nicoll
Used 1+ times
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47 questions
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1.
FLASHCARD QUESTION
Front
Back
Open Circuit: about 25 to 30 mV
Closed Circuit: about 15 mV
Closed circuit means it is connected to a load
Remember: Closed circuit is about half of open circuit
2.
FLASHCARD QUESTION
Front
Calculate Net Stack Temperature
Back
Subtract the temperature of air entering the burner from the temperature inside the flue.
3.
FLASHCARD QUESTION
Front
How to check Waterside Pressure Drop in a condenser or chiller?
Back
Pressure drop is the difference from the inlet to the outlet.
Use a single gauge.
This makes sure the measurement is consistent with the same instrument
Alternatively, change the piping arrangement by using valves to be able to read with just one sensor.
4.
FLASHCARD QUESTION
Front
Total head lift with 65 PSI net pressure on a pump
Back
150 ft
5.
FLASHCARD QUESTION
Front
How to calculate the percentage of outside air using 3 temperature sensors.
Back
6.
FLASHCARD QUESTION
Front
How to test an OFC
Back
Use jumper 1 & 2 to keep the heater on.
or
Do a Dry Run Test
7.
FLASHCARD QUESTION
Front
How are floor tubes attached to the header in an ice rink.
Back
Use double gear clamps
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