Recent questions tagged yet-to-be-categorized

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A power plant operates on a simple ideal Rankine cycle. If superheating is added to this cycle, then which one of the following options is CORRECT ?Pump work increases, t...
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A closed system containing an unknown substance undergoes an adiabatic process governed by the relation $P V^{\gamma}=$ constant, where $P$ is pressure, $V$ is volume, an...
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A Carnot engine operates between two temperatures $T_{1}$ and $T_{2}$ such that $T_{1}>T_{2}$. If the thermal efficiency of the engine is to be increased by changing one ...
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Air $\text{(assumed as an ideal gas)}$ with a mass flow rate of $2.5 \mathrm{~kg} / \mathrm{s}$ enters a horizontal nozzle at $350 \mathrm{~K}, 350 \mathrm{kPa}$ with a v...
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A suitable physical compatibilizer of a binary blend of poly(ethylene) and poly$\text{(propylene)}$ is __________.poly$\text{(caprolactam)}$poly$\text{(lactic acid)}$poly...
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Feedstock recycling of poly$\text{(ethylene terephthalate)}$ is carried out byhydrogenationdehydrogenationhydrolysisozonation
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Thermoforming operation of semi-crystalline polymers with glass transition temperature, $T_{g}$, and melting temperature, $T_{m}$, is carried out at a temperature $T$, in...
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Which of the following polymers is/are synthesized by ring opening polymerization?Poly$\text{(lactic acid)}$Poly$\text{( $\varepsilon$-caprolactone)}$Poly$\text{(styrene)...
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Melt flow index $\text{(MFI)}$ of a polymer depends on its molecular weight $(M W)$ and melt viscosity $(\eta)$. Select the correct relation(s) from the following.$\text{...
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The linear viscoelastic behaviour of a polymer is described by the Kelvin-Voigt model consisting of a spring element of elastic modulus $10$ MPa in parallel with a dashpo...
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Xeropthalmia is caused due to the deficiency ofThiaminPantothenic acidVitamin AVitamin C
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Which one of the following absorbents is NOT used as an ethylene absorber in active packaging of fruits and vegetables?Potassium permanganateActivated carbonCalcium hydro...
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Thermal resistance constant ( $z$-value) is defined as the change in temperature required to reduce the decimal reduction time of a microorganism by _________ percent $\t...
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Match the anti-nutritional factor in Column I with their corresponding activity given in Column II.Column IColumn IIP. LectinFlatulenceQ. StachyoseChelates with divalent ...
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Which of the following enzymes is/are used for the production of high fructose syrup $\text{(HFS)}$ from corn starch?$\alpha$-Amylase$\beta$-AmylaseXylose isomeraseGlucoa...
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Which of the following is/are typical characteristic(s) of a fungal cell?Presence of histone proteinsPresence of peptidoglycans in the cell wallPresence of chitin in the ...
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Which of the following statements is/ are true?Hagen-Poiseuille's law is used for calculation of molecular diffusion.Fick's law is used for calculation of energy requirem...
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Which one of the following feature is NOT necessary for the formation of Indian summer monsoon?Land-sea temperature contrastEl NiñoSeasonal reversal of windsMeridional pr...
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In an engineering college of $10,000$ students, $1,500$ like neither their core branches nor other branches. The number of students who like their core branches is $1 / 4...
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Sequence the following sentences in a coherent passage.P: This fortuitous geological event generated a colossal amount of energy and heat that resulted in the rocks risin...