Fluid Mechanics Mcqs

Q.  Which of the following is an incorrect statement_______?

a. Coefficient of contraction of a venturimeter is unity
b. Flow nozzle is cheaper than venturimeter but has higher energy loss
c. Discharge is independent of orientation of venturimeter whether it is horizontal, vertical or inclined
d. None of the above statement is correct.


ANSWER: See Answer
 
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MCQs:  The polluted water is one which_______________?
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MCQs:  The most common cause of acidity in water is_______________?
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MCQs:  Alkalinity in water is expressed as milli-grams per litre in terms of equivalent_______________?
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MCQs:  The maximum permissible limit for flouride in drinking water is______________?
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MCQs:  Turbidity is measured on_______________?
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MCQs:  Residual chlorine in water is determined by________________?
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MCQs:  If the total hardness of water is greater than its total alkalinity, the carbonate hardness will be equal to________________?
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MCQs:  The dissolved oxygen level in natural unpolluted waters at normal temperature is found to be of the order of________________?
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MCQs:  The length of rectangular sedimentation tank should not be more than_______________?
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MCQs:  Percentage of bacterial load that can be removed from water by the process of plain sedimentation is about_______________?
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MCQs:  The settling velocity of a particle in a sedimentation tank increases if______________?
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MCQs:  The detention period and overflow rate respectively for plain sedimentation as compared to sedimentation with coagulation are generally_______________?
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MCQs:  Alum as a coagulant is found to be most effective when pH range of water is______________?
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MCQs:  The alum, when added as a coagulant in water_______________?
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MCQs:  In water treatment, rapid gravity filters are adopted to remove_______________?
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MCQs:  The effective size of sand particles used in slow sand filters is_______________?
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MCQs:  Assertion A: Slow sand filters are more efficient in removal of bacteria than rapid sand filters. Reason R : The sand used in slow sand filters is finer than that in rapid sand filters. Select your answer based on the coding system given below?
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MCQs:  The percentage of filtered water, which is used for backwashing in rapid sand filters, is about______________?
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MCQs:  The rate of Alteration of pressure filters is_________________?
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MCQs:  Chlorine demand of water is equal to________________?
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