Steam Boilers, Engines, Nozzles and Turbines
Clearance ratio is the ratio of

Clearance volume to the volume at cut-off
Volume at cut-off to the swept volume
Swept volume to the clearance volume
Clearance volume to the swept volume

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Steam Boilers, Engines, Nozzles and Turbines
Pick up the wrong statement about water tube boiler in comparison to fire tube boilers

Former is used for high installed capacity
Chances of explosion are less in former case
Former occupies less space for same power
Rate of steam flow is more in former case

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