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प्रश्न
For what purpose is the acid battery hydrometer used?
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उत्तर
Acid battery hydrometer is used to check the concentration of sulphuric acid in an acid battery.
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संबंधित प्रश्न
Name and state the principle on which a hydraulic press works. Write one use of hydraulic press.
What should be the ratio of area of cross section of the master cylinder and wheel cylinder of a hydraulic brake so that a force of 15 N can be obtained at each of its brake shoe by exerting a force of 0.5 N on the pedal ?
What force is applied on a piston of area of cross section 2 cm2 to obtain a force 150 N on the piston of area of cross section 12 cm2 in a hydraulic machine?
Select the correct option.
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State two uses of a hydraulic press.
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Reason: Pressure is thrust per unit area.
Analogy
Pascal’s law: ______:: Surface tensin: ______.
