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Frage		Antworten
The air discharge vessel of the piston pump is used for: Lernen beginnen		Compensating the fluctuation of pressure and the capacity
The eductor has: Lernen beginnen		No moving parts
The diffuser is necessary in: Lernen beginnen		The ejector pump
The swing pump has: Lernen beginnen		The semirotary motion of working device
The impeller pump should have at least: Lernen beginnen		One shaft gland
The ability of suction without priming has: Lernen beginnen		The circulating pump...
The elastic casing insert has: Lernen beginnen		Single rotor screw pump
The swing pump should have at least: Lernen beginnen		Four valves
The multipiston pump with rotating cylinders rotates in: Lernen beginnen		One direction
The elastic casing insert has: Lernen beginnen		Single rotor screw pump
The plunger pump is: Lernen beginnen		Single action
The plunger pump has: Lernen beginnen		The plunger stuffing box
The positive displacement rotary pumps are used for pumping: Lernen beginnen		Liquids having lubricating properties
Which pump can be used as vacuum pump: Lernen beginnen		The circulating pump with rotating liquid ring
The non-return valve is usually fitted on the discharge pipe of: Lernen beginnen		Impeller pump
The safety valve is not necessary for: Lernen beginnen		Swig pump
The direction of the liquid flow changes by 90o in the impeller of: Lernen beginnen		Centrifugal pump
Ability of suction without priming is the feature of: Lernen beginnen		Screw pump
The impeller is placed eccentrically inside the casing of: Lernen beginnen		The circulating pump with rotating liquid ring
The variable displacement pump has: Lernen beginnen		More than two pistons

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