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In an engine, the fluctuation of speed is ± 2% of mean speed. Then coefficient of fluctuation of speed is
- a)0.01
- b)0.03
- c)0.05
- d)0.04
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
In an engine, the fluctuation of speed is ± 2% of mean speed. Then co...
Concept:
The difference between the maximum and minimum speeds during a cycle is called the maximum fluctuation of speed. The ratio of the maximum fluctuation of speed to the mean speed is called the coefficient of fluctuation of speed (Cs).
Calculation:
ωmax – ωmin = ± 2% of ωmean
⇒ ωmax – ωmin = 4% of ωmean⇒ ωmax – ωmin = 0.04 ωmean
⇒ 
Most Upvoted Answer
In an engine, the fluctuation of speed is ± 2% of mean speed. Then co...
Concept:
The difference between the maximum and minimum speeds during a cycle is called the maximum fluctuation of speed. The ratio of the maximum fluctuation of speed to the mean speed is called the coefficient of fluctuation of speed (Cs).
Calculation:
ωmax – ωmin = ± 2% of ωmean
⇒ ωmax – ωmin = 4% of ωmean⇒ ωmax – ωmin = 0.04 ωmean
⇒ 
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Community Answer
In an engine, the fluctuation of speed is ± 2% of mean speed. Then co...
Explanation:
Coefficient of fluctuation of speed is defined by the ratio of the range of fluctuation to the mean speed. It is given by the formula:
Coefficient of fluctuation of speed = Range of fluctuation / Mean Speed
Given that, the fluctuation of speed is ± 2% of mean speed. This means that the range of fluctuation is equal to 4% of the mean speed.
Range of fluctuation = 2% + 2% = 4% of mean speed
Therefore, the coefficient of fluctuation of speed is:
Coefficient of fluctuation of speed = 4% / 100% = 0.04
Hence, the correct answer is option D, i.e., 0.04.
Coefficient of fluctuation of speed is defined by the ratio of the range of fluctuation to the mean speed. It is given by the formula:
Coefficient of fluctuation of speed = Range of fluctuation / Mean Speed
Given that, the fluctuation of speed is ± 2% of mean speed. This means that the range of fluctuation is equal to 4% of the mean speed.
Range of fluctuation = 2% + 2% = 4% of mean speed
Therefore, the coefficient of fluctuation of speed is:
Coefficient of fluctuation of speed = 4% / 100% = 0.04
Hence, the correct answer is option D, i.e., 0.04.
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In an engine, the fluctuation of speed is ± 2% of mean speed. Then coefficient of fluctuation of speed isa)0.01b)0.03c)0.05d)0.04Correct answer is option 'D'. Can you explain this answer?
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