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Steam Boilers, Engines, Nozzles and Turbines
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Thermal efficiency of well maintained boiler will be of the order___________________?
Related MCQs
Which is not correct statement about effect of sulphur in fuel __________?
Which is not the correct statement about moisture in coal __________?
Which is not correct statement about the function of furnace__________?
Which is not correct statement about pulverised fuel firing ?
Pick up wrong statement about desired properties of a good fuel__________?
Thermal efficiency of a thermal power plant is of the order of__________?
The radius of a dished head is taken approximately as__________?
The overall efficiency of thermal power plant is__________?
In forced circulation type boiler__________?
The heat loss in a boiler takes place in the form of__________?
In which of the following boilers, the draught in furnace is increased by utilising exhaust steam from engine__________?
With increase in load, convection superheater has__________?
In a recuperative air preheater, the heat is transferred__________?
The temperature of flue gases at air heater outlet should be__________?
In designing air preheater, the important design consideration is that__________?
The function of injector used in small capacity boilers is to__________?
The height of chimney in a power plant is governed by__________?
Vacuum for reciprocating steam engines compared to steam turbines is__________?
In locomotives, the draught is produced by__________?
The maximum discharge through a chimney occurs when the height of chimney is__________?
Which device is used in thermal power plants to reduce level of pollution__________?
Ultimate analysis of fuel is determination of percentage of__________?
Spontaneous combustion is a phenomenon in which__________?
An economiser in a boiler__________?
Sulphur content of fuels is very important to the plant operators because it__________?
Gusset stays in a boiler are provided to__________?
Pour point of fuel oil is the__________?
The behaviour of coal in a furnace is determained by__________?
Sulphur in coal results in__________?
Green coal, in order to be burnt, must be__________?
The proximate analysis of fuel lists__________?
The safety valve on boiler drum compared to safety valve on super heater is set at __________?
The three “Ts” for good combustion are__________?
Gardually increasing temperature of flue gases at inlet to chimney for given steam outputs is an indication of__________?
The capacity of induced draft fan compared to forced draft fan in a boiler is__________?
Feed water conditioning in thermal power plants in done to__________?
Boiler parameters are expressed by __________?
Calorific value of coal is of the order of __________?
The condition of steam in boiler drum is always __________?
In ordetjo obtain superheated steam, a superheater is added in an existing boiler. As as result, furnace vacuum will __________?
Overfire burning is the phenomenon of __________?
Deaeration of feed water is carried out because it reduces __________?
Natural water circulation, by convection in water tube boilers, with increase in pressure of boiler __________?
During storage, the heating value of coal __________?
Film boling occurs at __________?
For the same diameter and thickness of tube, a water tube boiler compared to a fire tube boiler has __________?
The size of a boiler drum in pulverised fuel fired boiler,as its size and capacity, (steam pressure and flow ratings) increase __________?
The basic job of feed water treatment in boilers is to overcome the problem of __________?
The feed check valve is used in order to __________?
In water wall furnace, the heat is transferred to the water-walls by __________?
Fire tube boilers are limited to a maximum design working pressure of __________?
Thermal efficiency of well maintained boiler will be of the order___________________?
A. 20%
B. 40%
C. 50%
D. 75%
E. 90%
Correct Answer:
90%
✔
Last Updated:
May 18, 2023