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Journeyman's Test #1 Questions and Answers
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Journeyman's Test #1 Questions and Answers
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Journeyman's Test #1 Questions and AnswersMachinery roof exhaust how many CFM CORRECT ANS-.5 CFM
Forced induction furnace 150,000 BTUs how many square inches CORRECT ANS-300 in.²
Minimum gauge thickness required for 14 inch round sheet metal in a residence CORRECT
ANS-28 gauge
Product conveying duct must maintain a minimum of _____ above a joining grade CORRECT
ANS-10 feet
For a horizontal run of 1 1/4 inch gas pipe what is the max allowed between supports
CORRECT ANS-10 feet
When a cooling coil has to be installed in a duct system containing an existing furnace heat
exchanger code requires that the air first flow through CORRECT ANS-The heat exchanger
A ton of refrigeration is equal to CORRECT ANS-12,000 BTUs an hour or 288,000 BTUs a day
Minimum gauge required for 6 foot kitchen vent for low heat appliances CORRECT ANS-24
gauge
Minimum width for access from a central furnace in ducting unit furnace CORRECT ANS-24
inches
Firebox clearance in an attic should be CORRECT ANS-30 inches
, When starting an RTU in the spring time, what circuit do you start up first CORRECT ANS-
Crankcase heater circuit
Open flame on the end of a rod, heat is transferred by CORRECT ANS-Conduction
When must an approved smoke detector be used CORRECT ANS-Installed in return air
system with a design capacity greater than 2000 CFM
When working in excavation the minimum depth before a stairway CORRECT ANS-4 feet
The return air from one dwelling unit must not be discharged into CORRECT ANS-Another
dwelling unit
Heat transfers from CORRECT ANS-Hot to cold
A unit on the roof installed 4 feet from the edge she'll have a railing how high CORRECT ANS-
42 inches
What precaution must be taken when lead testing a system with nitrogen CORRECT ANS-Use
a pressure relief device and regulating valve
What is not approved for a duct in 2" HG CORRECT ANS-Pressure sensitive tape
Where may the condensate drain go CORRECT ANS-Sanitary or storm drain
8 inch gas vent protrudes through a flat roof how many feet with no obstructions CORRECT
ANS-1 foot
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