City of Omaha Stationary Engineer First Grade questions with complete solutions

What is a return tubular boiler? correct answer: A return tubular boiler - the products of combusting passing through the tubes while the water surrounds the tubes. What is a water tube boiler? correct answer: A water tube boiler - water inside the tubes while the production of combustion passes around the tubes. How is the head of a B&W boiler stayed? correct answer: There are no stays Why are the tubes on a Sterling Boiler bent? correct answer: So they can enter the drum radially. Into which drum on a Sterling boiler does the water enter and of which does the steam discharge? correct answer: Feed water enters the rear drum. Steam discharges from the steam and water drum which is the highest. What is meant by equalization and circulation? correct answer: Steam pressure equalizes between upper drums in equalizer tubes and water flows drum to drum in circulation tubes. How is the mud drum on a Sterling Boiler held in place? correct answer: The mud drum is suspended from the tubes. Where is the water column connected on a water tube boiler? correct answer: Water column is connected to the highest part of the steam space and to the water side of the boiler. If your boiler has only one low water cut-off what is the ASME