TEST 2026 FULL QUESTIONS AND CORRECT
ANSWERS
◉ Who sets boiler safety valves? Answer: NAVSEA
◉ What is the difference between a safety valve and a relief valve?
Answer: A relief valve lifts and reseats at the same pressure, a safety
valve lifts at a set pressure and reseats at a significantly lower
pressure
◉ What set of boiler tubes protects the superheater? Answer: Screen
wall tubes
◉ The superheater is protected from what type of heat? Answer:
Direct radiant heat
◉ What preheats incoming feed water 100F-200F? Answer:
Economizer
◉ What is the purpose of the safety shutoff device (SSD)? Answer:
Houses and positions the atomizer (burner barrel)
,◉ What is the purpose of the main feed booster pump (MFBPp)?
Answer: Provide a positive suction head to the MFP
◉ What is the purpose of the main feed pump (MFP)? Answer:
Pumps feedwater into the boiler 150-200 psi above boiler
operational pressure.
◉ Why do we get heavy black smoke and how many minutes to
secure? Answer: Too much fuel not enough air
2 minutes
◉ Why do we get white smoke and how many minutes to secure?
Answer: Too much air not enough fuel
1 minute
◉ What would you use to secure all fuel flowing to an applicable
boiler? Answer: Fuel oil quick closing valve/burner front QCV
◉ What would you use to secure 1 or 2 burners? Answer: Safety
Shutoff Device (SSD)
◉ What is a furnace purge and what is used to conduct one? Answer:
Rids firebox of explosive gases, electric force draft blower
, ◉ What type of atomization are you going to use if you are the first
boiler to light off? Answer: Air atomization
◉ What type of atomization are you going to use after you light off?
Answer: Steam atomization
◉ What energy conversion takes place in the generation phase of the
basic steam system? Answer: Chemical -> Thermal
◉ What are the three blowdowns the Navy conducts? Answer:
Surface, continuous, bottom
◉ Which blowdown cannot be done while the boiler is online?
Answer: Bottom
◉ What does EOSS, EOP, and EOCC stand for? Answer: Engineering
Operational Sequencing System
Engineering Operating Procedures
Engineering Operational Casualty Control
◉ What insulates the boiler and minimizes heat loss? Answer:
Refractory