Recent questions tagged analytical-aptitude

Computers are ubiquitous. They are used to improve efficiency in almost all fields from agriculture to space exploration. Artificial intelligence (AI) is currently a hot ...

The number of minutes spent by two students, $X$ and $Y$, exercising every day in a given week are shown in the bar chart above. The number of days in the given week in w...

Corners are cut from an equilateral triangle to produce a regular convex hexagon as shown in the figure above.The ratio of the area of the regular convex hexagon to the a...

Consider the following equation:$x^{3}-10 x^{2}+31 x-30=0$Which of the following is/are the root(s) of the above equation?$1$$2$$3$$4$

A biased die has six faces numbered as $k=1,2,3,4,5$, and $6$. On rolling the die, the probability of the number k appearing is proportional to $k^{2}$. What is the proba...

If $f(x)+3 f(g(x))=x-2$where $g(x)=\frac{3 x+1}{x-3}$ then the value of the ratio $\frac{f(5)}{f(8)}$ is _________.$\text{(answer in integer)}$

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...

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

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

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...

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 ...

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

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...

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NOT correct with respect to a batch reactor?No reactant is added after the reactor has started operation.No product is withdrawn ...

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 ...

An individual has four different email accounts. $60 \%$ of emails come into his corporate account, $30 \%$ come into his gmail account and remaining $10 \%$ are equally ...

The Henry's law constant of $\mathrm{CO}_{2}$ is $3.4 \times 10^{-2} \mathrm{M}$ per atm in neutral water at $25^{\circ} \mathrm{C}$. The dissolved $\mathrm{CO}_{2}$ (i.e...

Two reservoirs having a difference of $20 \mathrm{~m}$ in their water surface elevations are connected through a confined aquifer (thickness $=5 \mathrm{~m}$, length $=2 ...