Hydraulics & Pneumatics Test Questions


Q.  The efficiency of a centrifugal pump is maximum when its blades are__________________?

a. straight
b. bent forward
c. bent backward
d. bent forward first and then backward
e. bent backward first and then forward


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Air vessels in reciprocating pump are used to__________________?
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MCQs:  According to fan laws, at constant speed and capacity, the pressure and power vary_____________________?
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MCQs:  Maximum impulse will be developed in hydraulic ram when ___________________?
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MCQs:  A hydraulic intensifier normally consists of __________________?
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MCQs:  Hydraulic accumulator is used for____________________?
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MCQs:  Puck up the wrong statement about centrifugal pump_______________?
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MCQs:  Saving of work done and power by fitting an air vessel to double acting reciprocating pump is of the order of_______________?
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MCQs:  A hydraulic accumulator normally consists of________________?
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MCQs:  According to fan laws, at constant weight of air or gas, the speed, capacity and pressure vary________________?
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MCQs:  According to fan laws, for the fans having constant wheel diameters, the power demand varies_______________?
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MCQs:  According to fan laws, at constant pressure, the speed capacity and power vary_________________?
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MCQs:  Pressure intensifier increases the pressure in proportion to____________________?
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MCQs:  According to fan laws, for fans having constant wheel diameter, the pressure varies________________?
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MCQs:  Saving of work done and power by fitting an air vessel to single acting reciprocating pump is of the order of__________________?
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MCQs:  According to fan laws, for fans having constant wheel diameter, the air or gas capacity varies______________________?
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MCQs:  Which place in hydraulic turbine is most susceptible for cavitation __________________?
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MCQs:  Specific speed for reaction turbines ranges from___________________?
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MCQs:  The discharge through a reaction turbine with increase in unit speed____________________?
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MCQs:  Francis, Kaplan and propeller turbines fall under the category of___________________?
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MCQs:  Francis turbine is best suited for_____________________?
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