Recent questions tagged environmental-hydraulics

With reference to the gate shown in the figure, the gate will start opening automatically when the water level ' $h$ ' above the hinge is __________ $\mathrm{m}$ $\text{(...

The kinematic viscosity of glycerin and kerosene are $1.2$ times and $0.95$ times of that of water, respectively. Glycerin and kerosene flow through two identical porous...

The critical depth in a $2 \mathrm{~m}$ wide rectangular channel carrying a discharge of $10 \mathrm{~m}^{3} / \mathrm{s}$ and taking value of acceleration due to gravity...

An S-hydrograph was prepared for a catchment of $240 \mathrm{~km}^2$ using 3-hour unit hydrograph $(1 \mathrm{~cm}$ rainfall excess). The equilibrium discharge for the S-...

River water containing two types of spherical suspended particles $\text{(clay particles, metal particles)}$ is retained in a sedimentation tank. The clay particles havin...

A trapezoidal canal lined with cement concrete $(n=0.01)$ is designed to carry a discharge of $20 \mathrm{~m}^{3} / \mathrm{s}$ at a bed slope 1 in 400 . If the bed width...

A plunger weighing $314 \mathrm{kN}$ is balanced in a cylindrical vessel of diameter $1.5 \mathrm{~m}$ and filled with an oil (specific gravity 0.9 ) as shown in the foll...

A pipeline is designed to deliver $20 \mathrm{~L} / \mathrm{s}$ of an oil (kinematic viscosity $=6 \times 10^{-6} \mathrm{~m}^2 / \mathrm{s}$ and specific gravity $=0.9$ ...

In a $30 \mathrm{~m}^{3}$ room, a stove in operation consumes wood at the rate of $0.25 \mathrm{~kg} / \mathrm{h}$. The inflow and outflow rate of air in the room is the ...

An aeration tank needs to be installed for the removal of VOC from water, where the required rate of flow of water through the aeration tank is $180,000 \mathrm{~m}^{3} /...

In fluid statics, the line of action of the buoyant force always acts through the ___________.centre of gravity of any submerged bodycentroid of the volume of any floatin...

Two reservoirs are connected by a pipeline consisting of two pipes '$\text{A}$ ' and '$\text{B}$ ' in series. The two pipes are of same length and have the same Darcy fri...

In open channel flow, the specific energy is the total energy per unit weight of a liquid, where the component potential energy is measured from the bed of the channel as...

A $900 \mathrm{~mm}$ internal diameter sewer is laid at a slope of $0.004$ and has an actual flow of $0.15 \mathrm{~m}^3 / \mathrm{s}$. Assuming Manning's roughness coeff...

Consider the following statementsStatement $1$: Goodrich method for reservoir routing is based on hydrologic flood routing method.Statement $2$: Muskingum method for chan...

Centrifugal pumps with suction pipe (shown by solid arrow) and delivery pipe (shown by dotted arrow) are shown in the figures. Choose the option that gives the correct co...

The correct order of hydraulic conductivity for the geologic formations isAquifer $>$ Aquitard $>$ Aquiclude $>$ AquifugeAquifer $<$ Aquitard $<$ Aquiclude $<$ AquifugeAq...

The following figure shows a $2$-hour unit hydrograph ( $1 \mathrm{~cm}$ rainfall excess) for a catchment area of $540$ hectare. The peak discharge (in $\mathrm{m}^{3} / ...

A microbial culture, with a specific growth rate of $\mu_{1}$ (per hour), is being grown in a continuous reactor at steady state with hydraulic retention time (HRT) of $2...

A bag filter is used for removal of particulate matter having a range of sizes. The correct sequence of air filtration mechanisms for their removal, in order of decreasin...