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Q.

The area of cross section of the pump plunger & press plunger of a hydraulic press are 2 m2 & 8 m2 respectively . If the hydraulic press overcomes a load of 800 Kg f, the force acting as pump plunger is

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a

200 kg f

b

400 kg f

c

100 kg f

d

1600 kg f

answer is D.

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Detailed Solution

Given that A1=2m2 , A2=8m2

F1=F  , F2=800 kgf

We can have F1A1=F2A2

F2  =  800 kgf8

F  =  800 × 28  =  200 kgf

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