A. prevent flat surfaces under pressure from tearing apart
B. take care of failure in shear
C. take care of failure in compression
D. provide support for boiler
E. provide foundation of boiler
Related Mcqs:
- Gusset stays in a boiler are provided to____________________?
A. prevent the bulging of flat surfaces
B. avoid explosion in furnace
C. prevent leakage of hot flue gases
D. support furnace freely from top
E. prevent atmospheric air leaking into furnace - Pick up the correct statement as regards Cornish boiler and Lancashire boiler _______________?
A. cornish is fire tube and lancashire is water tube
B. cornish is water tube and lancashire is fire tube
C. cornish has two fire tubes and lancashire has one
D. lancashire has two fire tubes and cornish has one
E. both have two fire tubes - The difference between cornish boiler and lancashire boiler is that_________________?
A. former is fire tube type and latter is water tube type boiler
B. former is water tube type and latter is fire tube type
C. former contains one fire tube and latter contains two fire tubes
E. none/of the above - The size of a boiler drum in pulverised fuel fired boiler,as its size and capacity, (steam pressure and flow ratings) increase __________________?
A. increases
B. decreases
C. remains unchanged
D. increases/decreases depending on steam temperature requirements
E. unpredictable - For the same diameter and thickness of tube, a water tube boiler compared to a fire tube boiler has ____________________?
A. more heating surface
B. less heating surface
C. equal heating surface
D. heating surface depends on other parameters
E. none of the above - 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 - Equivalent evaporation is the amount of water evaporated in a boiler from and at ____________________?
A. 0°C
B. 100°C
C. saturation temperature at given pressure
D. room temperature
E. 20°C - The shell diameter and length of locomotive boiler are_______________?
A. 1.5 m, 4 m
B. 1.5 m, 6 m
C. 1 m, 4 m
D. 2 m, 4 m
E. 1.5 m, 8 m - Lancashire ‘boiler is a__________________?
A. stationary fire tube boiler
B. stationary water tube boiler
C. water tube boiler with natural/forced circulation
D. mobile fire tube boiler
E. none of the above - The heat loss in a boiler takes place in the form of________________?
A. heat carried away by flue gases
B. heat carried away by ash
C. moisture present in fuel and steam formed by combustion of hydrogen in fuel
D. radiation
E. all of the above
