Steam boiler | Steam boiler Objective Type Questions and answers


6. The water tubes in a simple vertical boiler are


   A.Horizontal

   B.Vertical

   C.Inclined

   D.All of the above


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C.Inclined

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7. The diameter of fire tubes in cochran boiler is of the order of........


   A.2 cm

   B.6 cm

   C.8 cm

   D.15 cm


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B.6 cm

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8. Lancashire boiler is a........


   A.Stationary fire tube boiler

   B.Internally fire tube boiler

   C.Horizontal boiler

   D.All of the above


✔ View Answer


E.All of the above

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9. The diameter of internal flue tubes of a Lancashire boiler is about........that of it's shell


   A.One-fourth

   B.One-third

   C.Two-fifth

   D.One-half


✔ View Answer


C.Two-fifth

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10. Thermal efficiency of well maintained boiler will be of the order......


   A.30%

   A.55%

   C.90%

   D.45%


✔ View Answer


C.90%

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