The pump tube of hydraulic press is of cross section area $a$ and is connected with a press tube of cross section area $A$ such that :

a > A

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A > a

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A = a

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None of the above

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Solution

The correct option is B $A > a$
In the construction of hydraulic press, release valve and press foot valves are there.
Hydraulic press consist of a pump tube of cross sectional area $a$ connected with a press tube of cross sectional area $A$ such that $A > a$ .
The lower end of the pump tube is connected with a smaller tube which is further connected with an underground water tank.
At the junction of the pump tube and the smaller tube is fitted $a$ "pump foot valve" which opens in the upward direction only.

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The pump tube of hydraulic press is of cross section area a and is connected with a press tube of cross section area A such that :

The pump tube of hydraulic press is of cross section area $a$ and is connected with a press tube of cross section area $A$ such that :