Recent questions tagged gatees-2022

A student reported following arsenic concentrations in water samples:$$\begin{array}{|l|l|l|l|l|l|l|l|}\hline \text{Arsenic concentration (mg/L)} & 0.10 & 0.12 & 0.20 & 0...

$\mathrm{X}$ is normally distributed with following data $(25.8,36.6,26.3,21.8,27.2)$. Select the correct statement about $X\left(\mathrm{t}_{\text {crit }, \alpha}=0.05,...

Assuming $\mathrm{s}>0$; Laplace transform for $f(x)=\sin a x$ is$\frac{a}{s^{2}+a^{2}}$$\frac{s}{s^{2}+a^{2}}$$\frac{a}{s^{2}-a^{2}}$$\frac{s}{s^{2}-a^{2}}$

Given $\mathbf{P}$ is $m \times n$ matrix, $\mathbf{Q}$ is $n \times l$ matrix, $\mathbf{R}$ and $\mathbf{S}$ are $n \times n$ matrices, and superscript $\mathrm{T}$ deno...

Ten litres of the sample was filtered through a membrane filter and the filter was transferred to solid agar media which supports growth of coliform organisms. After incu...

Specific conductance is used in water analysis to indirectly estimate dissolved solids. The measurements used in the method accounts forCations onlyAll ionsAnions onlyUn-...

Reverse Transcriptase Polymerase Chain Reaction is an analytical procedure used in detection of pathogenic microorganisms. Which one of the following statements is NOT co...

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...

Carbon dioxide is used in recarbonation process. A solution has $1 \mathrm{~mole} / \mathrm{L}$ supersaturated calcium carbonate. Estimated amount of carbon dioxide (in g...

A river water sample has $\mathrm{pH}$ of $4$ and suspended solids concentration of $100 \; \mathrm{mg} / \mathrm{L}$. If, alum is chosen as a coagulant, what will be the...

Which one of the following is most commonly used raw material in flue gas desulfurization units?LimestoneTitanium OxideFenton reagentBeryllium Oxide

Leachate generated from a legacy municipal solid waste dumping site has to be collected and managed carefully. Which one of the following statements is correct in the con...

Which one of the following statements is correct regarding Global warming?Water vapour does not contribute to global warming.Global warming is likely to increase the prod...

In context of ecosystems, which one of the following is NOT a correct statement?The growth of an organism such as a plant may be dependent on a number of different factor...

Which one of the following statements correctly defines the concept of 'Extended Producer's Responsibility'?The responsibility of a producer for environmentally sound dis...

If G represents Gibbs free energy, select the correct statement(s)If $\Delta \mathrm{G}=0$, reaction will proceed only in one directionIf $\Delta \mathrm{G}=0$, reaction ...

For effluents generated by a molasses based distillery and wood based pulp and paper industry, which of the following statement(s) is/are NOT correct?Both the effluents h...

$\quad \mathrm{PM}_{2.5}$ concentrations in ambient air can be measured usingBeta attenuation methodChemiluminescence methodGravimetric methodNon dispersive infrared spec...