The percentage O2 by Weight in atmospheric air is________?
A23%
B77%
C18%
D79%
Correct answer
A. 23%
Explanation
The correct answer is 23%.
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Study 121 Electrical Engineering MCQs with correct answers and explanations.
Correct answer
A. 23%
Explanation
The correct answer is 23%.
Correct answer
C. improves in winter as compared to that in summer
Explanation
The correct answer is improves in winter as compared to that in summer.
Correct answer
A. economizer
Explanation
The correct answer is economizer.
Correct answer
B. 1.02 to 1.06
Explanation
The correct answer is 1.02 to 1.06.
Correct answer
D. increase thermal efficiency
Explanation
The correct answer is increase thermal efficiency.
Correct answer
B. multi wheel reaction steam turbine
Explanation
The correct answer is multi wheel reaction steam turbine.
Correct answer
B. pvls=C
Explanation
The correct answer is pvls=C.
Correct answer
D. fossil fuels, hydropower and nuclear energy
Explanation
The correct answer is fossil fuels, hydropower and nuclear energy.
Correct answer
B. form lumps or masses of coke
Explanation
The correct answer is form lumps or masses of coke.
Correct answer
A. Thermal power plants
Explanation
The correct answer is Thermal power plants.