64. Lancashire boiler is of
A.Stationary-fire tube-type
B.All of the above.
C.Natural cirulation type
D.Internally fired type

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65. Fire tube boilers are those in which
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

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66. Which of the following substance will have. same percentage in both proximate and ultimate analysis
A.Ash
B.Volatile matter
C.Moisture
D.Hydrogen

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67. The number of flue tubes in Lancashire boiler is
A.Zero
B.One
C.Two
D.Four

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68. Which of the following is a fire tube boiler
A.Locomotive boiler
B.Babcock ad Wilcox boiler
C.Stirling boiler,
D.All of the above

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69. Which of the following is a water tube bOler
A.Locomotive boiler
B.Cochran boiler
C.Cornish boiler
D.Babcock and Wilcox boiler

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70. The diameter of cylindrical shell of the Lancashire boiler is of the order of
A.1 to 1.25m
B.1 to 1.75 m
C.2 to 4 m
D.1.75 to 2.75 m

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