Recent questions in IES Objectives-1

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In M-L-T system, what is the dimension of specific speed for a rotadynamic pump?

asked Jan 13, 2018 in FM by chandu (215k points)

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If Ns1 is the specific speed of a pump handling larger discharges at low heads and Ns2 is

asked Jan 13, 2018 in FM by chandu (215k points)

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What would be the ratio of the heads H1/H2?

asked Jan 13, 2018 in FM by chandu (215k points)

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The vanes of a centrifugal pump are generally

asked Jan 13, 2018 in FM by chandu (215k points)

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The power absorbed by a hydrazine pump is directly proportional to which one of the following?

asked Jan 13, 2018 in FM by chandu (215k points)

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The required pump power, in kW, will be

asked Jan 13, 2018 in FM by chandu (215k points)

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Before starting a centrifugal pump it is to

asked Jan 13, 2018 in FM by chandu (215k points)

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Increase in static suction lift of centrifugal pump may cause cavitation

asked Jan 13, 2018 in FM by chandu (215k points)

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What is the specific speed of the pump in meter-minutes?

asked Jan 13, 2018 in FM by chandu (215k points)

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If the rotative speed is 3000 rpm and manometric efficiency 0·8 then what is the net head developed?

asked Jan 13, 2018 in FM by chandu (215k points)

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The volute casing of a centrifugal pump has which of the following functions?

asked Jan 13, 2018 in FM by chandu (215k points)

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Why is multi-staging in centrifugal pumps used?

asked Jan 13, 2018 in FM by chandu (215k points)

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What are the resulting discharge (Q) and head (H)?

asked Jan 13, 2018 in FM by chandu (215k points)

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Centrifugal pumps have which of the following advantages?

asked Jan 13, 2018 in FM by chandu (215k points)

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Why is an air vessel used in a reciprocating pump?

asked Jan 13, 2018 in FM by chandu (215k points)

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Which one of the following pumps is not a positive displacement pump?

asked Jan 13, 2018 in FM by chandu (215k points)

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Volumetric flow rate Q, acceleration due to gravity g arid head H form a dimensionless group, which is given by

asked Jan 13, 2018 in FM by chandu (215k points)

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A centrifugal pump gives maximum efficiency when its blades are

asked Jan 13, 2018 in FM by chandu (215k points)

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When it is operated at 2000 RPM, its power consumption and head generated would be

asked Jan 13, 2018 in FM by chandu (215k points)

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In utilizing scaled models in the designing of turbo machines, which of the following relationships must be satisfied?

asked Jan 13, 2018 in FM by chandu (215k points)

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