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Statement 1: Drying is used for preservation of food. Statement 2: Convective drying is indirect drying and conductive drying is direct drying.
200 kg of solids (on dry basis) is subjected to a drying process for a period of 5000 seconds. The drying occurs in the constant rate period with the drying rate as, Nc = 0.5 × 10-3 kg/m2.s. The initial moisture content of the solid is 0.2 kg moisture/kg dry solid. The interfacial area available for drying is 4 m2/1000 kg of dry solid. The moisture content at the end of the drying period is (in kg moisture/kg dry solid)
A solid is being dried in the linear drying rate regime from moisture content Xo to XF. The drying rate is zero at X = 0 and the critical moisture content is the same as the initial moisture Xo. The drying time for M = (Ls/ARc) is (where, L = total mass of dry solid, A = total surface area for drying Rc = Constant maximum drying rate per unit area X = moisture content (in mass of water/mass of dry solids)
A family consumes 25 kg of rice and 20 kg pulses in a month. The price of rice is increased by 20% and that of pulses by 10% the following month. What will be the consumption of rice, if the family likes to keep the consumption of pulses and total money spend on both rice and pulses same as that of the previous month? (Assuming the expenditure of both the items is same).
A dryer is used for drying pears which has initial moisture content of 70 % (wet basis) and final moisture content of 5 % (wet basis). An experimental drying curve for the product indicates that the critical moisture content is 25 % (wet basis) and the time for constant drying is 5 min. Can you estimate the total drying time for product?
Karan purchased 165 Kg of pulses. He sold (1/5)th of pulses at a loss of 10%. At what per cent of profit he must sell the remaining pulses so that he can make 10% profit on the whole.
Mixtures of two pulses are stored in 3 containers having capacities in the ratio 1 ∶ 2 ∶ 3. If the ratio of the pulses in the 3 containers are 1 ∶ 2, 1 ∶ 1 and 3 ∶ 2, find the ratio of the two pulses when all the mixtures are stored in a single container.
The price of pulses is reduced by 10%. How many kg of pulses can now be bought for the money which was sufficient to buy 50 kg of pulses earlier?
Cost of two types of pulses is Rs. 15 and Rs. 20 per kg, respectively. If both the pulses are mixed together in the ratio 2 : 3, then what should be the price of mixed variety of pulses per kg?
There are two types of pulses. Cost of pulses are Rs. 150 per kg and Rs. 100 per kg. In what ratio these pulses are mixed so that the mixture sold at Rs. 121 kg to earn a profit of 10%.