NYC boiler practical Exam Prep
Questions With 100% Correct Answers
2025 Latest Update.
How do you use the bottom blow? - Answer 1. Requires two people. one to operate valves,
one to watch water level
2. Verify blow down tank is lined up.
3. Verify slow opening valve is closed.
4. Open (inner) Quick opening valve.
5. Then open (outer) slow opening valve for 10-15 seconds.
6. Close (outer) slow opening valve.
7. Then close(inner) quick opening valve.
8. Re-Open (outer) slow opening valve to relieve pressure.
9. Close (outer) slow opening valve.
Name Boiler Safeties? - Answer 1.Low water cutout
2. Vaporstat
3. High furnace pressure explosion door
4. high furnace pressure trip
5. flame detector
6. safety valves
7. fuel oil fusible link
8. pressuretrols ( low/high oil pressure)
9. proof of closure gas valve (block and bleed)
10. solenoid valves
11. non-return valve
12. high and low gas pressure switches
13. low fuel pressure
14. low atomizing air pressure
15. main gas supply low pressure
Questions With 100% Correct Answers
2025 Latest Update.
How do you use the bottom blow? - Answer 1. Requires two people. one to operate valves,
one to watch water level
2. Verify blow down tank is lined up.
3. Verify slow opening valve is closed.
4. Open (inner) Quick opening valve.
5. Then open (outer) slow opening valve for 10-15 seconds.
6. Close (outer) slow opening valve.
7. Then close(inner) quick opening valve.
8. Re-Open (outer) slow opening valve to relieve pressure.
9. Close (outer) slow opening valve.
Name Boiler Safeties? - Answer 1.Low water cutout
2. Vaporstat
3. High furnace pressure explosion door
4. high furnace pressure trip
5. flame detector
6. safety valves
7. fuel oil fusible link
8. pressuretrols ( low/high oil pressure)
9. proof of closure gas valve (block and bleed)
10. solenoid valves
11. non-return valve
12. high and low gas pressure switches
13. low fuel pressure
14. low atomizing air pressure
15. main gas supply low pressure
