Electrical Power Generation MCQs Part 6

a. Compression ignition diesel engine starts by:

  1. Spark plug
  2. High-temperature compression
  3. Combination of both
  4. None of these

Correct answer: 2. High-temperature compression

b. 1 kg of oxygen equals how many kgs of air:

  1. 2.82
  2. 4.32
  3. 9.88
  4. 21

Correct answer: 2. 4.32

c. Air contains the percentage of oxygen:

  1. 11%
  2. 21%
  3. 81%
  4. 67%

Correct answer: 2. 21%

d. The diesel engine should not be used as:

  1. Emergency plant
  2. Baseload plant
  3. Peak load plant
  4. Standy plant

Correct answer: 2. Baseload plant

e. Large sized diesel engines should operate at:

  1. Lower Speeds
  2. Medium speeds
  3. High speeds
  4. Very high speeds

Correct answer: 1. Lower Speeds

f. The cycle of operation in a two-stroke engine:

  1. Four stroke
  2. Two stroke
  3. Eight stroke
  4. Sixteen stroke

Correct answer: 1. Four stroke

g. Small sized diesel engines take air via:

  1. Dry air filter
  2. Engine room
  3. OIl bath filter
  4. Electrostatic precipitator filters

Correct answer: 2. Engine room

h. The most economical point to run diesel engine:

  1. Full load
  2. Half load
  3. 0.75 of full load
  4. 0.25 of full load

Correct answer: 1. Full load

i. The appropriate method for starting power plant diesel engines:

  1. Battery starters
  2. Air motors
  3. Compressed air system
  4. None of these

Correct answer: 3. Compressed air system

j. Compared to pressurized water reactor the power density of boiling water reactor is:

  1. Lower
  2. Higher
  3. Both are essentially same
  4. 20 times higher

Correct answer: 1. Lower


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