Recent questions tagged gatees-2023

Match the followingJ) Dalton's lawi) DiffusionK) Fick's lawii) Pressure exerted by a mixture of gasesL) Henry's lawiii) Gravitational settlingM) Stoke's lawiv) Gas-liquid...

Read the following statementsI. According to the Liebig's law of minimum, the growth is regulated by the limited factors i.e., resources in scarcity and not by the resour...

Read the following statementsTrivalent chromium has relatively low aqueous solubility, and low mobility in the soil environment. By contrast, hexavalent chromium has a hi...

Which of the following statements is/are NOT true?Urban heat island effect in a city can be reduced by increasing trees and vegetation cover in the city.Urban heat island...

Read the following statements about aerobic composting of organic fraction of municipal solid wasteThe majority of the odour problem in an aerobic composting process is d...

Consider two matrices $\mathbf{P}=\left[\begin{array}{ll}2 & 3 \\ 1 & 4\end{array}\right]$ and $\mathbf{Q}=\left[\begin{array}{ll}5 & 4 \\ 0 & 2\end{array}\right]$. If $\...

Second order ordinary differential equation $\frac{d^{2} y}{d x^{2}}-\frac{d y}{d x}-2 y=0$ has values $y=2$ and $\frac{d y}{d x}=1$ at $x=0$. The value of y at $x=1$ ...

For the function } f(x)=x \sqrt{4-x^{2}}, the maximum value in the range $-2 \leq x \leq 2$ is ____________ $\text { (rounded off to two decimal places). }$

The solubility of gas A is $16 \mathrm{mg} / \mathrm{L}$ in water and its vapor pressure is $0.042 \mathrm{~atm}$. at $25^{\circ} \mathrm{C}$. In a closed system, the gas...

The following figure (not to the scale) shows a catchment $(\mathrm{Q}, \mathrm{S}, \mathrm{U}, \mathrm{T}, \mathrm{Q})$ and adjoining raingauge stations $\mathrm{P}, \ma...

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 fully penetrating well is installed in a homogenous and isotropic confined aquifer. The aquifer has uniform thickness of $16 \mathrm{~m}$ and hydraulic conductivity of ...

A biological reactor is getting wastewater containing 1 mole/L acetate ions as carbon source. The following reaction takes place in the bio-reactor:\[\begin{array}{l}0.12...

A flask (100 ml volume) has wastewater, which has $0.12 \mathrm{mg} / \mathrm{L}$ geosmin. Activated carbon is added in this flask for adsorbing geosmin as per the Freund...

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 $=0.9$ ...

You are doing an experiment to find out $\mathrm{BOD}_5$ of a wastewater. You have taken $25 \mathrm{~mL}$ wastewater having ultimate BOD of $75 \mathrm{mg} / \mathrm{L}$...

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 ...

A city generates on average $1000$ metric tonnes/day of municipal solid waste and follows integrated waste management system. $15 \%$ of the total waste is recycled, $40 ...