Recent questions tagged gatees-2022

Biodegradable wastes like vegetable peelings from kitchen are usually processed by composting techniques. Which of the following option(s) regarding the processing of bio...

As per 'Hazardous and Other Wastes (Management and Transboundary Movement) Rules, $2016$ of Govt. of India, the import of hazardous and other wastes from any country shal...

The Ministry of Environment, Forest and Climate Change (MoEF\&CC), Govt. of India has published the Environment Impact Assessment (EIA) draft Notification $2020$, intende...

$\lim _{x \rightarrow 0} \frac{\sqrt{1+x}-1}{x}$ is (rounded off to one decimal place)

Given, $y=f(x) ; \frac{d^{2} y}{d x^{2}}+4 y=0 ; y(0)=0 ; \frac{d y}{d x}(0)=1$. The problem is a/aninitial value problem having solution $\mathrm{y}=x$boundary value pro...

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} / ...

For an exponentially growing microbial culture, the specific growth rate $(\mu)$ is related to its doubling time $\left(\mathrm{t}_{\mathrm{d}}\right)$ by which one of th...

Eigen values of the matrix $\left[\begin{array}{cc}0 & 1 \\ -2 & 3\end{array}\right]$ are$1$ and $2$$1$ and $3$$1$ and $-2$$0$ and $3$

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...

Which one of the following statements is NOT correct with respect to a batch reactor?No reactant is added after the reactor has started operation.No product is withdrawn ...

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...

During night, in troposphere, which of the following is/are NOT correct$\quad \mathrm{NO}_{2}+\mathrm{ho} \rightarrow \mathrm{NO}+\mathrm{O}$Most of the $\mathrm{NOx}$ (i...

A relatively calm room has background sound power level (SPL) of 30 decibels (dB). A television and a radio with SPL of $80 \mathrm{~dB}$ and $70 \mathrm{~dB}$, respectiv...

A typical plasmid-free bacterial cell having a single chromosome consists of $\sim 55 \%$ protein, $\sim 3 \%$ DNA and $\sim 21 \%$ RNA, where " $\% "$ " represents perce...

Which of the following statement(s) is/are NOT correct while comparing continuously stirred tank reactor (CSTR) and plug flow reactor (PFR)?CSTR and PFR are normally oper...

Average values of the re-aeration rate constant for river $\mathrm{X}$ and river $\mathrm{Y}$ are $0.92$ per day and $1.12$ per day, respectively. Average de-oxygenation ...

According to the National Ambient Air Quality Standards (Central Pollution Control Board, Govt. of India, notification 2009) which of the following statement(s) is/are co...

Consider the figure shown below for three different cases:Which of the following statement(s) is/are correct for surface level emissions, given the environmental temperat...

Carbon cycle, nitrogen cycle and phosphorus cycle play important role in the ecosystems. Which of the following statement(s) is/are NOT correct about the phosphorus cycle...

As per the Solid Waste Management Rules of 2016 (Govt. of India), which of the following statement(s) is/are correct?Biodegradable wastes should be processed biologically...