Cochran boiler is a__________________?

Related Mcqs:

1. The diameter of fire tubes in Cochran boiler is of the order of___________________?

   A. 2 cm
   B. 6 Cm ,
   C. 8 cm
   D. 12 cm
   E. 15 cm

2. 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

3. 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

4. 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

5. 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

6. 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

7. The diameter of internal flue tubes in a Lancashire boiler compared to its shell is_________________?

   A. one-half
   B. one-third
   C. one-fourth
   D. one-fifth
   E. two-fifth

8. The diameters of fire tubes and superheaer 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

9. Which type of boiler can meet rapid changes of load____________________?

   A. vertical fire tube type
   B. horizontal fire tube type
   C. horizontal water tube type
   D. vertical water tube type
   E. forced circulation type

10. 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