Hydraulics & Pneumatics Test Questions

Q.  What cause discharge of fluid in an external gear pump? 1. the electric motor drives one gear which turns the other gear 2. the electric motor drives both the gears simultaneously 3. fluid passes between the gears to discharge side 4. fluid passes through interior of the casing between teeth and casing and not between the gears

a. 1 and 3
b. 2 and 3
c. 1 and 4
d. 2 and 4


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