Power system MCQ #17

Power System MCQ 229 to 232:

229) Why demand of electrical energy is increasing day by day?

      (a) Electrical energy is a convenient form of energy.

      (b) It is easy control.

      (C) Greater flexibility

      (D) All of the above

230) What is/are the limitation of solar energy?

      (a) It requires large area for generation of even a small amount of power

      (b) It cannot be used in cloudy days or a night

      (c) It is uneconomical method

      (d) All of the above

231) How many tons of coal will produce the energy is equal to energy produced by 1 kg uranium?

      (a) 3000 tones

      (b) 4000 tones

      (c) 4500 tones

      (d) 5000 tones

232) What is/are the unit of mechanical energy in M.K.S. system?

      (a) Newton-meter

      (b) Joule

      (c) Both

      (d) None of the above

ANSWER: | 229-d | 230-d | 231-c | 232-c |

Power System MCQ 233 to 236:

233) 1 kWh = ………………… watt-sec

      (a) 36x 10^3

      (b) 36x 10^4

      (c) 36x 10^5

      (d) 36x 10^9

234) 1 calorie = ……………. Joules

      (a) 3.25

      (b) 3.90

      (c) 4.02

      (d) 4.18

235) 1kWh = …………... kcal

      (a) 780

      (b) 860

      (c) 950

      (d) 1030

236) Which of the following cycle steam power station basically works on?

      (a) Otto cycle

      (b) Rankine cycle

      (c) coal and ash cycle

      (d) Cooling cycle

ANSWER: | 233-c | 234-d | 235-b | 236-b |

Power System MCQ 237 to 240:

237) Which of the following equipment of steam power plant is convert steam energy into mechanical energy?

      (a) Boiler

      (b) Economizer

      (c) Generator

      (d) Steam turbine

238) At where coal is pulverized in thermal power plant?

      (a) Boiler

      (b) Coal storage plant

      (c) Ash storage plant

      (d) Superheater

239) Which of the equipment converts water into steam at high pressure and temperature in thermal power plant?

      (a) Superheater

      (b) Economizer

      (c) Boiler

      (d) Turbine

240) To arrange the sequence of flow of flue gases in power plant?

      (a) Boiler – air preheater – economizer – superheater –chimney

      (b) Boiler – economizer – superheater – air pre-heater – chimney

      (c) Boiler – superheater – air pre-heater – economizer – chimney

      (d) Boiler – superheater – economizer – air pre-heater – chimney

ANSWER: | 237-d | 238-b | 239-c | 240-d |