Hydraulic Machines

The area of cross-section of the wider tube shown in figure is $800 {\mathrm{cm}}^2$^​. If a mass of $12 \mathrm{kg}$ is placed on the massless piston, the difference in heights h in the level of water in the two tubes is

For the system shown in the figure, the cylinder on the left at$L$has a mass of $600 \mathrm{kg}$ and cross-sectional area of $800 {\mathrm{cm}}^2$. The piston on the right, at $S$, has cross-sectional area $25 {\mathrm{cm}}^2$ and negligible weight. If the apparatus is filled with oil$\left(\rho =0.75\mathrm{gm} {\mathrm{cm}}^{-3}\right)$. Find the force $F$required to hold the system in equilibrium

A force of $500 \mathrm{N}$ is executed on a hydraulic piston of cross sectional area of $100 {\mathrm{cm}}^2$. The cross-sectional area of other piston which supports a truck of a tonne weight is [use $g=9.8 \mathrm{m} {\mathrm{s}}^{-2}$]

The working of hydraulic lift is based on the principle of

Find the mechanical advantage of the hydraulic lift.

Mechanical advantage of a hydraulic lift is directly proportional to the:

Hydraulic brakes works on the principle of

The mechanical advantage of a hydraulic lift is directly proportional to

Hydraulic brakes works on the principle of

The mechanical advantage of a hydraulic lift is directly proportional to

A hydraulic lift can lift a maximum load of $3000 \mathrm{kg} \mathrm{wt}$.  The area of cross section of the piston carrying the load is $4.25\times {10}^{-2} {\mathrm{m}}^2$. The maximum pressure the smaller piston would have to bear is

A hydraulic lift has a smaller piston with an area $A_1$, and a larger piston with an area $A_2$_. The mechanical advantage of the hydraulic lift can be increased by:

In which of the following cases, Pascal's law is used.

What principle is used in braking system in a vehicle?

How is mechanical advantage achieved in a hydraulic machine?

Cotyledons are also called-

A hydraulic automobile lift has input and output pistons with diameters of $10 \mathrm{cm}$ and $30 \mathrm{cm}$. The lift is used to hold up a car with a weight of $1.44\times {10}^4\mathrm{N}$. What pressure is applied on the input piston?

A hydraulic lift is designed to life cars of maximum mass of 3000 kg. The area of cross-section of the piston carrying the load is$4.25\times {10}^{-12} {\mathrm{m}}^2$. What maximum pressure the smaller piston have to bear?

Radius of one arm of hydraulic lift is four times of radius of other arm. What force should be applied on narrow arm to lift $100 \mathrm{kg}$?

A hydraulic automobile lift is designed to lift cars with a maximum mass of $3000 \mathrm{kg}$. The area of cross-section of the piston carrying the load is $425 {\mathrm{cm}}^2$. What maximum pressure would the smaller piston have to bear?