A. flue gases pass through tubes and water around it
B. water passes through the tubes and flue gases around it
C. forced circulation takes place
D. tubes are laid vertically
E. none of the above
Month: January 2019
A. zero
B. one
C. two
D. four
E. many
A. locomotive boiler
B. Cochran boiler
C. Cornish boiler
D. Babcock and Wilcox boiler
E. Lancashire boiler
A. supplied by same manufacturer loose and assembled at site
B. supplied mounted on a single base
C. purchased from several parties and packed together at site
D. packaged boiler does not exist
E. none of the above
A. anthracite coal
B. bituminous coal
C. lignite
D. peat
E. wood
A. give maximum space
B. give maximum strength
C. withstand pressure inside boiler ,
D. resist intense heat in fire box
E. enable easy,manufacture
A. horizontal
B. vertical
C. inclined
D. both horizontal and vertical
E. horizontal and inclined
A. serve as storage of steam
B. serve as storage of feed water for water wall
C. remove salts from water
D. separate steam from water
E. control level
A. create vacuum in furnace
B. create vacuum at turbine exhaust
C. pump feed water
D. dose chemicals in feed water
E. control steam temperature by injecting water
A. more
B. less
C. same
D. could be more or less depending on other factors
E. none of the above
