List of practice Questions

Which classification of tides best represents the west coast of India?
The variation in geostrophic winds with height, at the atmospheric boundary layer, considering variation in pressure gradient as a function of height, is referred to as ..................
Consider the following options and pick out the right choice. The solubility of a gas in sea water increases with ...............
From the list given below, identify the organism type in the biological pump that takes up carbon dioxide from the atmosphere into the ocean.
The amount of CO$_2$ that can be absorbed ............... when the temperature of seawater decreases.
Identify the correct pair(s) of governing law with respective process operation.
A hammer mill is used to grind blackgram. The size distribution is such that 80% passes through a 6-mesh (3.36 mm) screen. The power required to produce a powder where 80% passes through a 45-mesh (0.354 mm) screen is 4.5 kW. Find the power in kW required to produce a finer powder, 80% of which passes through a 60-mesh (0.25 mm) screen. Use Bond’s law of size reduction.
If $D_{10}$ for {Salmonella} in egg yolk is 0.75 kGy, calculate the radiation dose in kGy (rounded off to 2 decimal places) required for reducing the {Salmonella} count in egg yolk by 8 log cycles.
The average moisture binding energy of a plant protein-based snack at 8% moisture content (dry basis) is 3200 cal.mol$^{-1}$. If the water activity of the snack at the above moisture content is 0.30 at 30°C, the water activity of the sample at 45°C is ............. (rounded off to 2 decimal places). Use $R = 1.987$ cal.mol$^{-1}$.K$^{-1}$.
Cow milk is pasteurized at a flow rate of 1 kg.s$^{-1}$ in a counter-current heat exchanger using hot water as the heating medium. The milk enters at 15°C and exits at 50°C. The specific heat of milk is 3.5 kJ.kg$^{-1}$.°C$^{-1}$. Hot water enters at 75°C and exits at 60°C. Overall heat transfer coefficient $U = 1800$ W.m$^{-2}$.°C$^{-1}$. Find the heat transfer surface area in m$^2$ (rounded off to 2 decimal places). Assume steady-state.
The net water level elevation near the coast arising due to a tropical-cyclone-induced storm is a combination of the following factors ................
The typical speeds of a tsunami wave in water depths of 10 m, 100 m, and 1000 m, respectively, are ................
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.
Extrusion cooking is accomplished in four different stages (I, II, III, IV). Identify the correct order from the given options.
Match the method/value used for measuring lipid characteristics in Column I with the corresponding properties indicated by them, in Column II.
Identify the correct statement(s) related to grain polysaccharides among the followings.
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?
Which of 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.