Q.1
In case of condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is _________ the atmospheric pressure.
Q.2
Latent heat of dry steam at atmospheric pressure is equal to
Q.3
The economiser is used in boilers to
Q.4
The safety valve at superheater as compared to drum safety valve setting is set at
Q.5
Boiler stays are used to
Q.6
In which of the following boilers, the draught in furnace is increased by utilising exhaust steam from engine
Q.7
Lancashire boiler is a
Q.8
The proximate analysis of fuel lists
Q.9
The ultimate analysis of fuel lists
Q.10
The performance of a boiler is measured by the
Q.11
The diameter of fire tubes in Cochran boiler is of the order of
Q.12
The length of Cornish boiler is of the order of
Q.13
Thermal efficiency of a thermal power plant is of the order of
Q.14
The diameter of Cornish boiler is of the order of
Q.15
Secondary air is the air used to
Q.16
The steam enters the nozzle at a
Q.17
The steam leaves the nozzle at a
Q.18
The critical pressure at which latent heat of vaporisation is zero is
Q.19
In a nozzle, the effect of super-saturation is to
Q.20
In a velocity compounded impulse turbine, when steam flows through the second row of moving blades,
Q.21
Equivalent evaporation is the amount of water evaporated in a boiler from and at
Q.22
When the circulation of water, in a boiler, is by convection currents which are set up during the heating of water, then the boiler is known as
Q.23
The basic purpose of drum in boiler is to
Q.24
When the circulation of water, in a boiler, is by a centrifugal pump, then the boiler is known as
Q.25
A steam nozzle converts
Q.26
The fire tubes in a Scotch marine boiler are
Q.27
Maximum energy loss in a boiler occurs due to
Q.28
The impulse turbine rotor efficiency will have a maximum value of 0.5 cos 2α, where α is the nozzle exit flow angle, if the
Q.29
The process of draining steam from the turbine, at certain points during its expansion and using this steam for heating the feed water in feed water heaters and then supplying it to the boiler is known as
Q.30
The fire tubes in, a Coarran and Scottish marine boiler are
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