Locomotive type’ boiler is :
A. horizontal multi tubular water tube boiler
B. water wall enclosed furnace type
C. vertical tubular fire tube type
D. horizontal multi-tubular fire tube type
E. none of the above types
The number of flue tubes in Lancashire boiler is :
A. zero
B. one
C. two
D. four
E. many
Which of the following is a water tube boiler :
A. locomotive boiler
B. Cochran boiler
C. Cornish boiler
D. Babcock and Wilcox boiler
E. Lancashire boiler
Which of the following coals has the highest calorific value :
A. anthracite coal
B. bituminous coal
C. lignite
D. peat
E. wood
The crown of the fire box is made hemispherical in order to :
A. give maximum space
B. give maximum strength
C. withstand pressure inside boiler ,
D. resist intense heat in fire box
E. enable easy, manufacture
The fire tubes in, a Ciarran and Scotch marine boiler are :
A. horizontal
B. vertical
C. inclined
D. both horizontal and vertical
E. horizontal and inclined
The basic purpose of drum in boiler is to :
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
The function of injector used in small steam plants is to :
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
The water tubes in a Babcock and Wilcox boiler are :
A. horizontal
B. vertical
C. inclined
D. horizontal and inclined
E. vertical and inclined
The diameters of fire tubes and superheated tubes in locomotive boiler are :
A. 47.5 mm, 130 mm
B. 32.5 mm, 180 mm
C. 65.5 mm, 210 mm
D. 24.5 mm, 65 mm
