Journeyman Oil Exam Questions And 100% Correct Answers
TT terminals are normally used for?
A. Line 1
B. Neutral
C. Thermostat
D. Burner load - Answer C. Thermostat
The stack mount primary control must be ______ prior to use.
A. Stepped on
B. Put in step
C. Reset
D. None of the above - Answer B. Put in step
The ECM (electrically commuted motor) features:
A. Quicker shut-off
B. Quicker starting
C. Variable speed motor capability
D. All of the above - Answer C. Variable speed motor capability
The cad cell control will go to the lock out position when a reading of _______ ohms are
found at the cad cell.
A. 300
B. 700
C. 2000
D. 1600 - Answer D. 1600
,If the FF terminals are jumped after starting up and the controls goes into lock out what
is the correct action?
A. Reset control
B. Jump out TT
C. Replace control
D. Replace cad cell - Answer C. Replace control
The following are the factors which affect cad cell performance except
A. Cell alignment
B. Dirty cell
C. Improper flame
D. Thermostat setting - Answer D. Thermostat setting
A switching relay can be used to
A. Control a line voltage device with low voltage controller
B. control a low voltage device with a line voltage controller
C. control two devices from a single controller
D. All of the above - Answer D. All of the above
Safety timing same as flame response.
T/F? - Answer False
How do you take a control out of latch up?
, A. Press reset button
B. Press reset and hold for 60 seconds
C. Disconnect line power and reconnect
D. All of the above - Answer B. Press reset and hold for 60 seconds.
What is the red wire on Carlin microprocessor controls for?
A. Burner
B. Limit
C. Line 2
D. Post purge
Answer D. Post purge
The normal ohms range for a cad cell during burning operation?
A. 1600-2000
B. 1000-1500
C. 300-1000
D. None of the above
Answer C. 300-1000
When choosing the correct safety timing of a cad cell control what is the most important
factor?
A. Size of the fire box
B. Spray angle of the nozzle
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