4393950
Descrição
Quiz por TRAVIS CANNING, atualizado more than 1 year ago
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Criado por TRAVIS CANNING
quase 9 anos atrás
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Questão 1
Questão
As the liquid travels through the volute casing of a centrifugal pump toward the discharge, its _______ energy is converted into pressure or potential energy.
Responda
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rotation
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fluids
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kinetic
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electrical
Questão 2
Questão
As compared to a radical flow pump, the axial pump has a low suction lift and develops a relatively ______ discharge head, and has a ______ flow capacity
Responda
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low, small
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low, large
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high, small
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high, large
Questão 3
Questão
The screw pump
Responda
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has two screws that rotate in the same direction inside the casing
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has an externally-cut gear which meshes with an internally-cut gear
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has a single rotor containing screw threads within a casing
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has two rotors each with three lobes.
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has two rotors each with intermeshing screw threads
Questão 4
Questão
A/An ______ valve is a combination check valve and minimum flow valve in one unit.
Responda
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discharge
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automatic recirculation valve
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remote backpressure valve
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minimum flow
Questão 5
Questão
Wearing rings are often made of _____ or cast iron since these materials tend to wear in a smooth manner.
Responda
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bronze
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copper
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nickel
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brass
Questão 6
Questão
The mixed flow pump has a single inlet impeller with the flow entering the pump in an axial direction and leaving the pump in direction between axial and _______
Responda
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centrifugal
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radial
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series
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parallel
Questão 7
Questão
The external gear pump
Responda
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has two gears, which rotate in opposite directions inside the casing.
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has an externally-cut gear that meshes with an internally-cut gear, separated by a crescent-shaped portion
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has a rotor containing vanes within slots
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has two rotors each with three lobes
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has two rotors each with two opposing spirals or screw threads
Questão 8
Questão
The axial flow pump, often called a _____ pump, uses an impeller with vanes similar to a ships propeller
Responda
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ships
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mates
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lift
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propeller
Questão 9
Questão
Multi-stage centrifugal pumps are equipped with two or more impellers operating in ______
Responda
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parallel
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series
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opposition
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separate casings
Questão 10
Questão
It is imperative that the flow through a multistage pump be kept above a _______ flow rate
Responda
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maximum
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manufactures
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minimum
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safe
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