Electrical Power Generation MCQs Part 10

The series of MCQs belongs to Electrical Power Generations MCQs.

a. The correct order in which turbines are installed in a steam power station:

  1. High pressure, then medium pressure, then low pressure
  2. High pressure, then low pressure, then medium pressure
  3. Low pressure, then high pressure, then medium pressure
  4. Low pressure, then medium pressure, then high pressure

Correct answer: 1. High pressure, then medium pressure, then low pressure

b. The condenser in steam power plant condenses the steam coming out from:

  1. Boiler
  2. Turbine
  3. Economizer
  4. None of these

Correct answer: 1. Boiler

c. The preferred type of boiler is steam power stations prefer:

  1. Water tube boiler
  2. Fire tube boiler
  3. Drum boiler
  4. Depends on power capacity

Correct answer: 1. Water tube boiler

d. Air contains the percentage of nitrogen:

  1. 11%
  2. 21%
  3. 61%
  4. 79%

Correct answer: 2. 21%

e. Cetane is:

  1. Hexadecane
  2. Dodecane
  3. Tetradecane
  4. Decane

Correct answer: 1. Hexadecane

d. The formula of cetane is:

  1. C7H16
  2. C16H34
  3. C12H26
  4. C17H36

Correct answer: 2. C16H34

e. Higher cetane fuels have:

  1. Longer ignition delay
  2. Shorter ignition delay

Correct answer: 2. Shorter ignition delay

f. Air required by diesel power plant per kWh:

  1. 1 to 4 m3
  2. 4 to 8 m3
  3. 8 to 12 m3
  4. 12 to 24 m3

Correct answer: 2. 4 to 8 m3

g. The essential features of diesel engine exhaust system:

  1. Isolation of vibrations
  2. Less noisy
  3. Reduction of air pollution
  4. All of these
  5. None of these

Correct answer: 4. All of these

h. The part of diesel engine which required lubrication:

  1. Gears
  2. Piston
  3. Connecting rod
  4. Bearings
  5. All of these

Correct answer: 5. All of these

i. Usually, diesel engine alternator poles are of:

  1. Salient type
  2. Nonsalient type
  3. Both are possible
  4. The alternator is not used with diesel engine

Correct answer: 1. Salient type

j. For same output, the size of the vessel for boiling water reactor is __________ than pressurized water reactor:

  1. Smaller
  2. Larger
  3. Equal in size
  4. 10 times Smaller

Correct answer: 2. Larger


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