Question 196Motor Plants - 1st Asst/Chief

The correct answer is B) water-tube type. Diesel engine waste heat boilers are typically constructed using the water-tube boiler design. In this type of boiler, the water flows through tubes that are surrounded by the hot exhaust gases from the engine. This design allows for efficient heat transfer from the waste heat to the water, resulting in the generation of steam. The water-tube design is commonly used for diesel engine waste heat boilers due to its ability to handle high pressure and temperature conditions effectively. The other answer choices are not the typical construction for diesel engine waste heat boilers. The dry back boiler, critical circulation boiler, and cyclone furnace boiler types are not commonly used in this application.