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

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