Steam Boilers, Engines, Nozzles and Turbines
In accelerated circulation type boiler

Heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum
Water is supplied in drum and through down comers located in atmospheric condition it passes to the water wall and rises to drum in the form of mixture of water and steam
Feed pump is employed to supplement natural circulation in water wall type furnace
Water is converted into steam in one pass without any recirculation

ANSWER DOWNLOAD EXAMIANS APP

Steam Boilers, Engines, Nozzles and Turbines
The efficiency of a boiler is defined as

None of these
Ratio of the heat liberated in the furnace to the heat actually used in producing steam
Ratio of heat actually used in producing steam to the heat liberated in the furnace
Ratio of the mass of steam produced to the mass of total water supplied in a given time

ANSWER DOWNLOAD EXAMIANS APP

Steam Boilers, Engines, Nozzles and Turbines
Pick up the correct statement as regards Cornish boiler and Lancashire boiler

Cornish is fire tube and Lancashire is water tube
Lancashire has two fire tubes and Cornish has one
Cornish is water tube and Lancashire is fire tube
Cornish has two fire tubes and Lancashire has one

ANSWER DOWNLOAD EXAMIANS APP

Steam Boilers, Engines, Nozzles and Turbines
In an impulse turbine

The steam is expanded in moving blades only
The pressure and temperature of steam remains constant
The steam is expanded in nozzles only and there is a pressure drop and heat drop
The steam is expanded both in fixed and moving blades continuously

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines