Q.1.
Waste heat from the outgoing flue gases in a thermal power plant is recovered by a/an
Q.2.
In producer gas making furnace, steam is added along with air to mainly control the
Q.3.
Higher furnace temperature can not be achieved by use of a lean fuel gas in the furnace by
Q.4.
Neutral atmosphere is maintained in a/an __________ furnace.
Q.5.
In order to maintain an oxidising atmosphere in a furnace, it should have
Q.6.
Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of
Q.7.
An example of indirectly heated furnace is the
Q.8.
The resistance furnace produces heat by the
Q.9.
The method of Lobo and Evans is concerned with the calculation of the
Q.10.
Pulverised fuel fired furnaces employ __________ fuel firing.
Q.11.
Combustion of fuel in a furnace with oxygen enriched air results in higher
Q.12.
Scaling of furnace stock is reduced by __________ in flue gas.
Q.13.
Cement Kiln is a
Q.14.
If fuel and air are mixed ahead of the burner, it is called a/an __________ burner.
Q.15.
Out of the following fuels used in a furnace exhausting flue gas at a temperature of 600°C, the percentage stack loss will be maximum in case of complete combustion of
Q.16.
Which of the following furnaces will have maximum thermal efficiency?
Q.17.
An example of a periodic furnace is the
Q.18.
Which of the following is not a continuous waste heat recovery equipment from the flue gases going out of furnace?
Q.19.
Flue gas outlet temperature from the chimney of any furnace should be ideally about __________ °C.
Q.20.
Which is a regenerative furnace?
Q.21.
Dampers are located
Q.22.
Protective gas used in the annealing furnace for steel coil comprises of
Q.23.
__________ furnace is not an electric furnace.
Q.24.
In reverberatory furnace, charge is heated mainly by
Q.25.
Blast furnace stoves are meant for heating
Q.26.
In order to maintain a reducing atmosphere in a furnace, it should have
Q.27.
An improved and fuel efficient version of the pusher type reheating furnace is the __________ furnace.
Q.28.
Which of the following variables affects the furnace capacity?
Q.29.
Forced recirculation of furnace gases is practised
Q.30.
The amount of combustible escaping uncon-sumed from the furnace, depends upon the