STEAM BOILERS, ENGINES, NOZZLES AND TURBINES QUIZ

None of these

Water passes through the tubes which are surrounded by flames and hot gases

Forced circulation takes place

The flames and hot gases pass through the tubes which are surrounded by water

218 kg/cm² abs and 373°C

218 kg/cm² abs and 540°C

1 kg/cm² and 100°C

100 kg/cm² and 540°C

Domestic use

Cement industry

Blast furnace

Thermal power plant

Same

Could be more or less depending on other factors

More

Less

2 m

2.5 m

1.5 m

1 m

Decreasing exhausts pressure

Increasing exhaust pressure

Increasing the expansion ratio

Decreasing initial steam pressure and temperature

Natural circulation type

Stationary < fire tube type

All of the listed here

Horizontal type

Equivalent evaporation

Boiler efficiency

Power of a boiler

Factor of evaporation

None of these

Greater than unity

Equal to unity

Less than unity

Increases/decreases depending on steam temperature requirements

Decreases

Remains unchanged

Increases