Science, asked by biswaranjanjena34200, 8 months ago

27 : Hydraulic jacked are used in
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Hydraulic pre-stressing
Electrical pre-stressing
Chemical pre-stressing
None of the these​

Answers

Answered by saimaqatar29
0

Answer:

Hydraulic jacks are often used to lift elevators in low and medium rise buildings. A hydraulic jack uses a liquid, which is incompressible, that is forced into a cylinder by a pump plunger. Oil is used since it is self lubricating and stable.

Answered by vatsamit42
0

Answer:

Hydraulic pressure stressing

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