Steam Boilers, Engines, Nozzles and Turbines
In fire tube boilers

The flames and hot gases pass through the tubes which are surrounded by water
None of these
Water passes through the tubes which are surrounded by flames and hot gases
Forced circulation takes place

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Steam Boilers, Engines, Nozzles and Turbines
Boilers, Engines, Nozzles and Turbines Objective Questions and Answers pdf:- 101. The difference between cornish boiler and lancashire boiler is that

former is water tube type and latter is fire tube type
None of these
former contains one fire tube and latter contains two fire tubes
former is fire tube type and latter is water tube type boiler

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Steam Boilers, Engines, Nozzles and Turbines
Besides mean effective pressure, the data required to determine the indicated power of an engine include

Specific fuel consumption, speed of rotation and torque
Piston diameter, specific fuel consumption and Calorific value of fuel
Piston diameter, length of stroke and calorific value of fuel
Piston diameter, length of stroke and speed of rotation

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Steam Boilers, Engines, Nozzles and Turbines
Blow off cock in a boiler is used to

Increase the temperature of saturated steam without raising its pressure
Empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler
Put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit
Control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required

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