Questions by admin

$\text{W1, W2, W3...W9}$ represent the holding times of $9$ water samples, which follow a normal distribution with mean $=8.33$ and standard deviation $=4.472$.$\text{M}$...

Which one of the following statements is NOT correct?Photophosphorylation is the synthesis of $\text{ATP}$ from $\text{ADP}$ and inorganic phosphate in the presence of li...

Read the following statementsI. Bacteriophage is an anaerobic bacterium.II. Male-specific bacteriophage infect via the pili of other microorganisms including viruses.III....

Read the following statementsi. In endogenous metabolism by aerobic bacteria, electron acceptor is present inside the cells.ii. In endogenous metabolism by aerobic bacter...

A boiler in an industry, located where high plume rise is expected, releases flue gas with fine particulate matter. Which one of the following options is most suited and ...

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...

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 $x=1$ ...

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 $\...

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...