Questions by admin

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...

Which one of the following fungi produces aflatoxins?Aspergillus nigerFusarium verticillioidesAspergillus flavusRhizopus oligosporus

Under standard conditions in animal feeding studies, the weight gained $\text{(in grams)}$ per gram of protein consumed by an animal is termed asNet Protein RatioNet Prot...

Xeropthalmia is caused due to the deficiency ofThiaminPantothenic acidVitamin AVitamin C

Which one of the following steps is used to remove phosphatides from crude oil in the refining process?NeutralizationBleachingDegummingDeodorization

The unique flavor of chocolate and cocoa is due to the formation of$5$-methyl-$2$-phenyl-$2$-hexenalCycloteneFuraneolMaltol

Which one of the following statements regarding Hazard Analysis Critical Control Point $\text{(HACCP)}$ plan is NOT correct?HACCP is a management tool for ensuring food s...

The product of cabbage fermentation by Leuconostoc mesenteroides isTempehNattoSauerkrautMiso

Which one of the following absorbents is NOT used as an ethylene absorber in active packaging of fruits and vegetables?Potassium permanganateActivated carbonCalcium hydro...

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...

Which one of the following statements regarding moisture sorption isotherms of a dried food is NOT correct?At a given temperature, the difference between adsorption and d...

Processing of fluid milk at $72^{\circ} \mathrm{C}$ for $15$ seconds is termed asHigh-temperature, short-time $\text{(HTST)}$ pasteurizationLow-temperature, long-time $\t...

Match the anti-nutritional factor in Column I with their corresponding activity given in Column II.Column IColumn IIP. LectinFlatulenceQ. StachyoseChelates with divalent ...

Which of the following fatty acids is/are known to increase the low density lipoprotein $\text{(LDL)}$-cholesterol?Omega-$3$ Fatty acidsTrans Fatty acidsConjugated Linole...

The addition of which of the following to high-methoxyl pectin will result in gel formation?Calcium ionsHydrogen ionsSodium ionsSugar

Which of the following steps in food processing is/are used to reduce the acrylamide formation in food products?Pretreatment using asparaginaseLowering the pHIncreasing t...

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...

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 ...

Which of the following statements is/ are correct regarding food and water borne disease and the class of causative microorganisms?Legionellosis is a bacterial disease.Gi...

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...

A $10$ kg tomato pulp is concentrated from an initial moisture content of $90 \%$ (wet weight basis) to $35 \%$ (wet weight basis). The weight of the concentrate in kg is...

The surface temperature of a hot plate is $175^{\circ} \mathrm{C}$. The ambient air temperature is 25 ${ }^{\circ} \mathrm{C}$. The rate of heat transfer per unit area in...

A tubular bowl centrifuge is used to separate an aqueous phase from an oil phase. The radii of outlets of the light and heavy liquids are set at $4.5$ cm and $4.6$ cm, re...

A westerly wind is blowing in the Northern Hemisphere. What is the direction of net mass transport in the Ekman layer?SouthwardNorthwardNorth-EastwardSouth-Westward

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...

The work done by Coriolis force isdirectly proportional to velocitya function of latitudezeroalways positive except at the equator

If the isobars and isopycnals are parallel to each other, the flow is said to bebaroclinicbarotropicgeostrophicrotational

Transfer of energy between ocean and atmosphere in the form of sensible heat flux is due todifference in specific humidity between ocean and atmospheredifference in tempe...

A value of outgoing long-wave radiation $\text{(OLR)}$ $<200 \mathrm{~W} \mathrm{~m}^{-2}$ over the tropical oceans indicates ___________high pressure regiondeep convecti...

Which of the following is a correct statement?Tropics receive more incoming short-wave radiation than the outgoing long-wave radiation.Polar regions do not emit any long-...

Upwelling region has __________.low sea surface heighthigh sea surface heightdecrease in primary productionlow nutrients

Density of sea-water does not directly depend on __________.temperature of sea watersalinity of sea waterpressure of sea watervorticity of sea water

Which of the following is/are true about ocean circulation?Wind driven circulation, with constant Coriolis force, can produce narrow and fast western boundary currents.Wi...

Svedrup's equation deals with:curl of wind stresspressure gradient forcevariation of Coriolis force with latitudemeridional transport of sea water

pH of the water in the oceans is/are directly affected by:water temperaturewater salinitytotal alkalinitywater pressure

Billow clouds indicate:turbulence in the atmospherevertical shear of the windheavy precipitationuniform winds

Consider an atmospheric flow at $45^{\circ} \mathrm{N}$, which is parallel to latitude and isobars. Which of the following is/are true when there is no friction?Flow is i...

The given figure shows a schematic of dry, moist, and environmental lapse rates. Which of the following is/are correct statements?The lapse rate of environment below $5$ ...

Balance of forces and different types of flows/weather phenomena in the northern hemisphere are given. Match the following:Balance of forcesFlow type/weather phenomenaP. ...

During summer monsoon season, water from Arabian Sea spreads over the southwestern Bay of Bengal. This leads toformation of salt fingersupwellingwestern boundary currentd...