350 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+
1. What are the three functions of an oil burner nozzle?
a. Filter, heat, ignite
b. Atomize, meter, pattern ✅
c. Spray, ignite, regulate
d. Vent, circulate, compress
2. What are the two voltage circuits of a primary control?
a. High & Ground
b. Neutral & Hot
c. Positive & Negative
d. Line & Low ✅
3. What is the function of a fuse?
a. Increase current flow
b. Convert energy
c. Protect circuit ✅
d. Reduce voltage
4. What is the High Limit cut-out on a boiler?
a. Minimum safe pressure
b. Max safe temperature or pressure setting ✅
c. Normal operating temperature
d. Starting ignition point
5. What is the High Limit cut-in?
a. Cut-out minus differential ✅
b. Pressure reset point
c. Fuel injection point
d. Boiler cool-down level
6. What is the "Max" lockout time for a burner with a 3 GPH flow rate?
a. 15 seconds
b. 30 seconds
,c. 45 seconds ✅
d. 60 seconds
7. What is the minimum stack temperature to activate a stack switch?
a. 250°F
b. 300°F
c. 350°F
d. 400°F ✅
8. When is a permit required to store oil?
a. 1 gallon
b. 5 gallons
c. 10 gallons ✅
d. 15 gallons
9. What is the main function of an oil burner primary control?
a. Adjust temperature
b. Start the blower
c. Prove flame ✅
d. Control draft
10. A stack relay must be reset after lockout. True or False?
a. True ✅
b. False
11. What is the required minimum height for fill and vent pipes?
A. 2 feet
✅ B. 3 feet
C. 4 feet
D. 5 feet
12. What is the smallest vent pipe size used in residential applications?
A. 1 inch
✅ B. 1 1/4 inch
C. 1 1/2 inch
D. 2 inches
13. What is the standard size of the oil line for a residential burner?
A. 1/4 inch
B. 1/2 inch
, ✅ C. 3/8 inch
D. 5/8 inch
14. What is the largest oil capacity for residential use without a license?
A. 5,000 gallons
✅ B. 10,000 gallons
C. 12,000 gallons
D. 15,000 gallons
15. At what ceiling height is a second thermal switch required?
A. 8 feet
B. 10 feet
✅ C. 12 feet
D. 14 feet
16. A typical residential oil burner is set up to run kerosene. True or False?
✅A. False
B. True
17. Who issues the permit to install an oil burner?
A. Local building inspector
B. EPA
C. Department of Energy
✅ D. State Fire Marshal
18. In what units are draft measurements typically taken?
A. PSI
✅ B. Inches of water column
C. Feet per second
D. BTUs
19. What is the pressure relief setting for a hot water boiler?
A. 15 PSI
B. 20 PSI
✅ C. 30 PSI
D. 50 PSI
20. What is the pressure relief setting for a steam boiler?
A. 30 PSI
B. 25 PSI
✅ C. 15 PSI
D. 10 PSI
Want me to keep going from question 21 onward?
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