List of practice Questions

Which one of the following is an elastomer?
Compression moulded isotropic polypropylene film exhibits
Choose the correct pair(s) of Governing Law and corresponding application(s)
An orange juice sample is concentrated from 10% to 40% (by weight) total soluble solids in a single effect evaporator with a feed rate of 3600 kg hr\(^{-1}\) at 25°C. The evaporator operates at sufficient vacuum to allow the product moisture to evaporate at 55°C. The specific heat of both feed and concentrated juice is 4.0 kJ kg\(^{-1}\) °C\(^{-1}\). If enthalpy of water vapour at 55°C is 2600 kJ kg\(^{-1}\), heat transfer rate through the heating surface area of the evaporator in kilowatt (in integer) will be \(\underline{\hspace{2cm}}\).
Dry air is fed into a tray dryer. The percentage relative humidity of the air leaving the dryer is 60% at 70°C and 101.35 kPa. If saturated vapour pressure of water at 70°C is 31.2 kPa, the humidity of the air leaving the dryer in kg water per kg dry air (round off to 3 decimal places) will be \(\underline{\hspace{2cm}}\).
Which of the following is the correct pair of GRAS chemical food preservative, affected organism, and given food matrix?
Choose the correct pair of pigment and their corresponding color in given plant product.
Which of the following compounds act as anti-nutritional factors?
Which of the followings is/are commonly used medium/media in the supercritical fluid extraction of spices and tea?
Which of the following expressions represent the Reynolds number of a fluid flowing through a uniform circular cross-section pipe?
Which of the following combinations of analytical equipment, property measured and food property are correct?
Which one of the following enzymes is involved in proteolysis of casein in cheese during aging?
Which one of the following compounds is present in soybean and acts as phytoestrogen?
Ultra high temperature (UHT) process of pasteurization of milk is achieved by heating at
Bittering agent in grapefruit formed after juice extraction under acidic conditions is
The conversion of pyruvate to lactic acid in homolactic fermentation is catalyzed by
Which one of the following statements is INCORRECT with respect to Controlled Atmosphere Package (CAP) and Modified Atmosphere Package (MAP) of agro-produce?
A spherical asteroid, revolving around the sun in a circular orbit, is in radiative balance. Suddenly, the asteroid enters the shadow of a planet and solar radiation is cut off. Assuming that the asteroid emits as a blackbody in the longwave regime, the time taken to reduce the average temperature of the asteroid by 0.5 K is \(\underline{\hspace{1cm}}\) seconds (rounded off to the nearest integer).
In a typical bacterial growth curve, the first order kinetics for growth rate is observed in
Which one of the following microorganisms is NOT a causative agent for food borne diseases?
Which of the following is NOT a fermented food product?
The Protein Efficiency Ratio (PER) is defined as
Which one of the following enzymes sequentially releases maltose from starch?
Coral reefs are found primarily in tropical and subtropical shallow seaways. Which of the following statement(s) is/are correct?
In an incompressible fluid, the horizontal divergence is -0.01 s\(^{-1}\). Then, the vertical velocity at 50 m above a flat surface is \(\underline{\hspace{2cm}}\) m s\(^{-1}\). Round off to one decimal place.