15gph COMPLETE QUESTIONS WITH
CORRECT ANSWERS || RECENT VERSION
1. What are the three functions of the fan/limit control - ANSWER ✅ Fan off,
fan on, shut off burner at high limit
2. What is the normal operating pressure of a steam system? - ANSWER ✅ 2
psi
3. What is the main function of the primary control? - ANSWER ✅ Safety and
react to light
4. If oil pressure is set to 100 psig what should the cut off pressure be? -
ANSWER ✅ 20%; 80 psi
5. How does an amp meter obtain a reading? - ANSWER ✅ Electric magnet
field
6. An 8th inch of soot could increase fuel consumption by how much? -
ANSWER ✅ 8%
7. What kind of draft is the movement of flu gases up the chimney? -
ANSWER ✅ Natural draft
, 8. Draft is done in what kind of measurement? - ANSWER ✅ Inches of water
9. Define authority having jurisdiction - ANSWER ✅ A company or
individual responsible for enforcing codes and requirements for equipment
10.Confined space as defined by NFPA 31 is _________? - ANSWER ✅ A
space who's volume is less than 50 feet per 1000 BTUs of input of all
appliances installed in the space
11.The interval of time during burner start up in which air is introduced to the
combustion chamber and the associated flu passages in such a volume and
manner to completely replace the air or fuel air mixture contained therein
prior to initiating ignition is the _______ period? - ANSWER ✅ Pre purge
12.The action of shutting off all fuel and ignition energy to an appliance by
means of a safety control or controls such that restart of the appliance cannot
be accomplished without some form of manual reset that requires local
manual intervention is known as? - ANSWER ✅ Safety shut down
13.At what pressure would a relief valve blow off on a low pressure steam
boiler? - ANSWER ✅ 15 psi
14.What is the clearance from an electrical panel for an oil tank? - ANSWER
✅ 3 feet
15.What is the maximum voltage for safety control circuit's? - ANSWER ✅
150