1.
Soot is virtually nothing but
A
carbon4
B
ash
C
cinder
D
gas
Loading practice questions
43 practice sets · Page 1 of 3
Soot is virtually nothing but
carbon4
ash
cinder
gas
The boilers using lignite as fuel do not use
under feed stoker
traveling grate stoker
spreader stoker
all of the above.
In a steam turbine cycle, the lowest pressure occurs in
turbine inlet
boiler
condenser
super heater.
Out of the following which one is not a unconventional source of energy ?
Tidal power
Geothermal energy
Nuclear energy
Wind power
Which variety of coal has lowest calorific value?
Steam-coal
Bituminous coal
Lignite
Anthracite.
Coal used in power plant is also known as
steam coal
charcoal
coke
soft coal.
Ash content of coal can be reduced by
slow burning
washing
pulverizing
mixing with high grade coal.
In a steam locomotive the engine is
Single cylinder
Vertical
Condensing
Non-condensing.
In power station practice spinning reserve is
reserve generating capacity that is in operation but not in service
reserve generating capacity that is connected to bus and ready to take the load
reserve generating capacity that is available for service but not in operation
capacity of the part of the plant that remains under maintenance.
Which of the following contributes to the improvement of efficiency of Rankine cycle in a thermal power plant ?
Reheating of steam at intermediate stage
Regeneration use of steam for heating boiler feedwater
Use of high pressures
All of the above.
Chemical composition of coal is given by
Proximate analysis
Ultimate analysis
Orast analysis
All of the above.
Power plants using coal work closely on known which of the following cycle ?
Otto cycle
Binary vapor cycle
Brayton cycle
Rankine cycle.
Bagasse is
low quality coal
a fuel consisting of wood
fibrous portion of sugarcane left after extracting the juice
a kind of rice straw.
Low grade fuels have
low moisture content
low ash content
low calorific value
low carbon content.
Which of the following, is not a high pressure boiler ?
Loeffler boiler
Lancashire boiler
Velox boiler
Lamont boiler.
For low head and high discharge, the hydraulic turbine used is
Kaplan turbine
Francis turbine
Pelton wheel
Jonual turbine.
As steam expands in turbine
its pressure increases
its specific volume increases
its boiling point increases
its temperature increases.
The equipment installed in power plants to reduce air pollution due to smoke is
Induced draft fans
De-super heaters
Electrostatic precipitators
Re-heaters.
The efficiency of a thermal power plant improves with
increased quantity of coal burnt
larger quantity of water used
lower load in the plant
use of high steam pressures.
When pulverized fuel is not used, the equipment used for supplying coal to the boiler is
Heater
Stoker
Burner
Skip hoist.