Statement 1: Which tray dryer has indirect heating? Statement 2: Which tray dryer is good for making powders?

← Prev Question Next Question →

1 Answer

Related questions

+2 votes

1 answer

Statement 1: Cabinet tray dyers can be used for heat sensitive materials. Statement 2: Bin dryer is used for materials which follow the falling rate drying curve.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+1 vote

1 answer

Statement 1: Microwave heating helps save electricity. Statement 2: The quality of product in microwave heating is good hence rejections are lesser.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+2 votes

1 answer

Statement 1: Drying is used for preservation of food. Statement 2: Convective drying is indirect drying and conductive drying is direct drying.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+2 votes

1 answer

Statement 1: Cabinet tray dryers are used for storing grains. Statement 2: Cabinet tray dryers are used for low cost foods.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+1 vote

1 answer

Statement 1: Vibro-fluidized bed dryer can reduce the air flow rate consumptions as air is only used for drying and not for fluidizing. Statement 2: _____ are often called desolventizers.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+2 votes

1 answer

Cabinet tray dryers are not very effective as they do not completely strip off the moisture content from the food item. Hence, they need to be combined with another dryer for effective results.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+1 vote

1 answer

Statement 1: In microwave heating, heat is not applied to the food item. Statement 2: Radiation doesn’t gives even drying whereas microwave heating does.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+1 vote

1 answer

Statement 1: Plate heat exchangers are used in heat sensitive foods like milk. Statement 2: Principle behind plate heat exchangers is that there is very less space between the plates and hence quick heating can take place.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+1 vote

1 answer

Statement 1: The factor F0 shows the microbial safety in the food item at the coldest point. Statement 2: F0 takes the time-temperature data at that particular point and compares conventional heating to microwave heating.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+2 votes

1 answer

Tunnel dryer is only a continuous version of a cabinet tray dryer.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+1 vote

1 answer

Advantage of turbo dryer over cabinet tray dryer is _____

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+2 votes

1 answer

Statement 1: Horizontal tube evaporator is easy for cleaning. Statement 2: Horizontal tube evaporator has a disadvantage of hindering agitation of the feed.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+1 vote

1 answer

Microwave heating is good for puffed products. Why?

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+1 vote

1 answer

Statement 1: Difference between 1-1 and 1-2 heat exchanger is that 1-2 has both counter AND co current, whereas 1-1 has only co-current. Statement 2: 1-2 heat exchanger requires a high pressure drop.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+1 vote

1 answer

Statement 1: Removing of moisture content for grains in the food industry follows the thin layer model of drying bed. Statement 2: The model for removing moisture from grains is computerized to find out the exact amount of time of exposure of grains for the removal of moisture.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+2 votes

1 answer

Statement 1: Forward feeding requires pumps for the feed at every step. Statement 2: In a backward feeding arrangement, the most concentrated feed is exposed to the maximum steam in order to remove heat. This is its advantage.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+1 vote

1 answer

Statement 1: Scraped surface evaporators are used in the dairy industry. Statement 2: Plate evaporators can be used for viscous liquids.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+2 votes

1 answer

Statement 1: Penetration theory states that mass transfer coefficient is directly proportional to diffusivity coefficient which was later proved wrong. Statement 2: Penetration theory states that mass transfer is based on unsteady mass transfer.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+1 vote

1 answer

Statement 1: Duhring’s rule states that the ratio of temperatures at which two solutions have the same vapor pressure is constant. Statement 2: Duhring’s rule states that the boiling point of a solution is a linear function of the boiling point of pure water at the same pressure.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+1 vote

1 answer

Statement 1: In film theory, mass transfer coefficient is proportional to D^1/2 Statement 2: Penetration theory states that all elements are exposed at the same time which is unrealistic.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+1 vote

1 answer

If _______ heating has higher heat transfer rates than _______ heating, then why is ________ difficult to be used.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+1 vote

1 answer

Recently, cancer causing effects, nutritional destructions of food and biological effects of exposure of microwave heating has come into light.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+1 vote

1 answer

Statement 1: Concentration is a product of diffusivity and solubility. Statement 2: Permeability coefficient in case of food packaging can be written as product of partial pressure and solubility using Henry’s law.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+1 vote

1 answer

Statement 1: In a multiple effect evaporator, the overall temperature drop is equal to the individual drops at each step. Statement 2: In a multiple effect evaporator, the total area is equal to the sum of the individual areas.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

+1 vote

1 answer

Statement 1: A phase boundary exists between alcohol and oxygen. Statement 2: Phase boundary varies with agitation. It is inversely proportional to the amount of agitation provided.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

...