TSEE MCQ part 1

1. What is the function of boiler?
a) To burn the fuel in a confined closed system with the supply of air
b) To generate steam at varying pressure
c) To generate steam at constant pressure
d) To produce flue gases by burning fuel at a given pressure
Answer: c

2. Why single boiler unit per turbine is equipped commonly?
a) For better turbine control
b) To deduce the costs
c) For overcoming losses of power
d) To improve the efficiency
Answer: a

3. What is the critical average pressure at which the single boiler unit per turbines is designed to handle?
a) 150 bar
b) 220 bar
c) 740 bar
d) 575 bar
Answer: b

4. How can be the plant efficiency of steam power plant is increased?
a) By using high pressure and high temperature steam
b) By equipping ash and flue gas clearance system
c) By maintaining the boiler on daily basis by cleaning the soot and combustion products
d) By using better and efficient type of fuel for combustion
Answer: a

5. Which type of boilers is preferred cost wise when the boilers are required to raise less than 30 tonnes of steam?
a) Fluid boiler
b) Cornish boiler
c) Butterley boiler
d) Shell boiler
Answer: d

6. What is the temperature at which the steam boilers are capable to withstand?
a) 200^oC
b) 280^oC
c) 540^oC
d) 358^oC
Answer: c

7. The _________ may have water circulation either by natural means due to difference in density or by external means.
a) Piping
b) Tubes
c) Furnace
d) Boiler
Answer: d

8. What increases as steam pressure increases inside a boiler?
a) Force
b) Density
c) Rate of steam conversion
d) Viscosity
Answer: b

9. What is needed to be increased to increase the heat transfer rate in the boiler?
a) Gas velocities
b) Fuel input
c) Water velocities
d) Air supply
Answer c

 

10. In what is water in high pressure boiler circulated through?
a) Conduits
b) Cove
c) Channel
d) Tubes
Answer: d

 

11. What type of boiler is a Lamont boiler?
a) Forced circulation
b) Natural circulation
c) Over-through
d) Positive forced circulation

Answer: a

12. What is called as the heart of the Lamont boiler?
a) Water drum
b) Centrifugal pump
c) Furnace
d) Blower

Answer: b

13. Through what is feed water from hot-well is passed through, before entering steam and water drum in Lamont boiler?
a) Evaporator tubes
b) Economizer
c) Distributer header
d) Circulating pump

Answer: b

14. In what form are the boiler’s tube arrange in Lamont boiler?
a) parallel in Vertical
b) Inclined vertically
c) parallel in horizontal
d) Horizontally inclined

Answer: c

15. Through which does the even circulation of feed water is possible in Lamont boiler?
a) Nozzles
b) Water trough
c) Feed pump
d) Hose

Answer: a