List of top Food Technology Questions asked in GATE Engineering Sciences

Identify the correct statement(s) related to grain polysaccharides among the followings.
Match the enzyme in Column I with its application in food processing/reaction given in Column II.
Identify the Gram +ve bacteria responsible for causing food borne diseases among the following.
Which of the following statements is NOT correct?
Which among the followings is NOT an essential amino acid?
The time required for stipulated destruction of a microbial population at a given temperature is ______.
Which among the following statements is NOT correct?
Calculate the efficiency in percent (rounded off to 1 decimal place) of an oil expeller which yields 37 kg oil containing 5% solid impurities from 100 kg mustard seeds. The oil content of the mustard seed is 38%.
Orange juice is packaged aseptically and stored under ambient conditions. The degradation of vitamin C in the juice occurs during storage following first-order reaction kinetics. The degradation rate constant is $5.2 \times 10^{-3}$ day$^{-1}$. The half-life of vitamin C in days is ............. (in integer).
The weight of 10 kg dried cauliflower containing 5% moisture (wet basis) after rehydration is 60 kg. If the fresh cauliflower contained 87% moisture (wet basis), calculate the coefficient of rehydration (rounded off to 2 decimal places).
Match the industrial product in Column I with the fermentative organism in Column II.
Choose the correct group of fat-soluble vitamins.
The synthesis of thyroxine T4 in the human body requires .............

In a canning industry, the total process time \( F_0 \) was calculated as 3 min. If each can contains 20 spores with decimal reduction time of 1.6 min, the probability of spoilage would be _________ \(\text{ in 100 cans. (round off to the nearest integer)}\)

Identify the correct pair(s) of milling equipment and the grain for which it is used.
In a dairy processing plant, milk enters a 30 m long and 2 cm diameter tube at 60°C and leaves at 57°C. The total heat loss over the tube length is 381.15 W. The specific heat capacity, density, and viscosity of milk are 3.85 kJ kg$^{-1}$ K$^{-1}$, 1020 kg m$^{-3}$, and 1.20 cP, respectively. The Reynolds number for the flow is _________ (rounded off to the nearest integer). Given: Acceleration of gravity \( g = 9.81 \ \text{m/s}^2 \) and \( \pi = 3.14 \)
Which among the following statements are true with respect to protein denaturation?

Apple juice flows through a steel pipe having thermal conductivity of 50 W \(m^{-1} \text{K}^{-1} \). The outer surface of the pipe is exposed to ambient environment. The inside diameter and thickness of the pipe are 3 cm and 1.5 cm, respectively. The overall heat transfer coefficient based on inside area is 25 W\( m^{-2} \text{K}^{-1}\). If the internal convective heat transfer coefficient is 30 W \(m^{-2} \text{K}^{-1}\), the external convective heat transfer coefficient (in W \(m^{-2} \text{K}^{-1} \textbf{}\) ) Will be _________ (round off to two decimal places).}

Which among the following are \(\omega\)-6 polyunsaturated essential fatty acids?
The radius of a centrifuge bowl is 0.1 m and is rotating at 850 revolutions per minute. The centrifugal force developed in terms of gravity force (g-force) is _________ (round off to two decimal places). Given: Acceleration of gravity (g) = 9.81 m/s$^2$ and $\pi = 3.14$
Match the edible oil refining stages given in Column I with their respective functions in Column II
Most commonly used refrigerant in direct immersion freezing of food is
Make the correct pair of food packaging technology given in Column I with operating principle or description in Column II
Which of the following is not a caramel flavour producing compound?
Match the size reduction equipment in Column I with the method of operation in Column II: