Steam Boilers, Engines, Nozzles and Turbines
A compound steam engine in which piston rods of high pressure and low pressure cylinders ' are attached to two different cranks set at 180° to each other, is called

Woolf type compound engine
Receiver type compound engine
Tandem type compound engine
Both (A) and (B)

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Steam Boilers, Engines, Nozzles and Turbines
Which is not correct statement about effect of sulphur in fuel?

It has heating value
It leads to corrosion of air heaters, ducting, etc. if flue gas exit temperature is low
It erodes furnace walls
It helps in electrostatic precipitation of ash in flue gases

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Steam Boilers, Engines, Nozzles and Turbines
The function of a safety valve is

None of these
To blow off steam when the pressure of steam inside the boiler exceeds the working pressure
To indicate the water level inside the boiler to an observer
To measure pressure of steam inside the steam boiler

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Steam Boilers, Engines, Nozzles and Turbines
The nozzle efficiency is the ratio of

Workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam
None of these
Workdone on the blades to the energy supplied to the blades
Energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam

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