1. Power plants that convert water in boilers into steam by generating heat energy using a thermal source are called
(A) Thermal Power Plants
(B) Nuclear Power Plants
(C) Solar Power Plants
(D) Diesel Power Plant
2. A machine which converts the energy contained in steam into mechanical energy is called;
(A) Boiler
(B) Condenser
(C) Generator
(D) Steam turbine
3. The steam power station has large sections
(A) Boiler
(B) All of these
(C) Generator
(D) Turbine
4. A thermal (steam) power plant consists of these major parts
(A) Boiler, Steam turbine and generator
(B) Boiler and generator
(C) Steam turbine and generator
(D) Boiler and Steam Turbine
5. The primary purpose of a thermal power plant is to
(A) Generating electric power
(B) Both a & b
(C) Generation of steam for industrial purposes other than power generation
(D) None of these
6. A boiler is a device which;
(A) Produces pressurized steam
(B) Converts water to steam
(C) Both a and b
(D) Converts steam to water
7. Boiler is used in
(A) Both a & b
(B) In hydel power station
(C) In steam power station
(D) None of these
8. The types of boiler are
(A) Fire tube boiler
(B) Water tube boiler
(C) None of these
(D) Both a & b
9. In a water tube boiler
(A) Water is inside the tubes
(B) Fire takes place inside the tubes
(C) Both a & c
(D) Fire takes place outside the tubes
10. Economizers are used to heat
(A) Feed water
(B) Water
(C) Steam
(D) Gas
11. By heating the feed water in the economizer
(A) Flue gases are used
(B) All of these
(C) Fuel is saved
(D) Boiler efficiency increases
12. A steam power plant has an economizing function
(A) Saving in water consumption
(B) Preventing wastage of steam
(C) Heating feed water by using flue gases
(D) All of these
13. This advantage is achieved by the use of economizer in a steam power plant
(A) Steam pressure is increased
(B) Fuel is saved
(C) Boiler efficiency is increased
(D) Both b & c
14. Heating the feed water with flue gases saves fuel
(A) 2 percent
(B) 5 to 15 percent
(C) 20 percent
(D) None of these
15. Steam is passed through this before sending from the boiler to the turbine
(A) Pre-heater
(B) Super heaters
(C) Economizer
(D) Cooling tower
16. The aim to pass the steam through the super heater is
(A) Drying
(B) Both a & b
(C) Protecting the turbine blades from rusting
(D) None of these
17. ----------- is passed through the superheater
(A) Very hot water
(B) Cold water
(C) Moist steam
(D) Dry steam
18. The superheater is fitted
(A) Inside the boiler
(B) Inside the condenser
(C) Outside the boiler before the turbine
(D) At the outlet of the turbine
19. A steam condenser is essentially a device
(A) Water cooler
(B) Fuel cooler
(C) Gas cooler
(D) Steam cooler
20. The steam coming out of the steam turbine goes
(A) In economizer
(B) In boiler
(C) In condenser
(D) In preheater
21. Turbo alternators are ------pole machines
(A) Two
(B) Four
(C) Both a & b
(D) Eight
22. ------Turbine in which the pressure remains constant as the steam passes over the moving blades
(A) Gas
(B) Reaction
(C) Impulse
(D) Water
23. A diesel engine power plant has an important part
(A) Diesel engine
(B) Generator
(C) Both a & b
(D) None of these
24. ------- Power plants can be installed in less time
(A) Thermal
(B) Hydro
(C) Gas
(D) Diesel
25. This method is used for cooling large diesel engines
(A) Air cooling system
(B) None of these
(C) Hydrogen cooling system
(D) Forced water cooling system
26. Diesel power plant has higher initial cost than steam power plant;
(A) Less
(B) Very less
(C) High
(D) Very High
27. Environmental impact of thermal power station affects the;
(A) Human life
(B) Animal life
(C) All
(D) Plant life
28. Which fuel used in thermal power plant produces pollution?
(A) All of these
(B) Oil
(C) Gas
(D) Coal