Boilers classification: identify the correct combined statement about common boiler types Check each named boiler against its family (fire-tube or water-tube) and firing arrangement. Choose the correct option.
Mechanical Engineering
Steam Boilers and Engines
Difficulty: Easy
Choose an option
-
ALancashire boiler is a fire-tube boiler.
-
BFire-tube boilers are internally fired.
-
CBabcock and Wilcox boiler is a water-tube boiler.
-
Dall of the above
Answer
Correct Answer: all of the above
Explanation
Given facts• Lancashire is a classic fire-tube boiler with two large furnace/flue tubes.• Typical fire-tube units (Cornish, Lancashire, locomotive, Scotch marine) are internally fired (furnace within the shell).• Babcock & Wilcox is a water-tube boiler (water/steam in tubes, hot gases outside).
Concept/ApproachIdentify each boiler type by where the water/steam flows and where the furnace is placed.
ResultAll three statements (a), (b), and (c) are correct, so the best choice is all of the above.