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c) the same
                4. Their basic advantages of triplex plunger pumps are more
           even discharge rates and substitution of liners and half pistons for
           ….
                   a)  plungers and packing
                   b) gaskets and valves
                   c) piston rods
                5.  Centrifugal  charge  pump  is  used  to  assure  no  …  in  the
           triplex slush pump operation.
                   a) corrosion
                   b) cavitation
                   c) abrasive action

                Exercise 3. Correct the spelling of the word and explain
           the functions of the object
                powar-driven diplex doubl-action slush pomp
                cranki-driven pomp
                pieston rodes
                prechamged pulsater dampener
                pomp discharg manifold
                fluida end of a sluch pump
                trixlex plenger pump
                saction presure
                centriflial charge pump
                rotary drilleng machunery
                tmiplex single-acting smush pumps
                manufanturer's specifikations
                abcasive actionin
                cikulation mud streamful
                pishon rod paking.








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