List of top Agricultural Engineering and Technology Questions on Drying and Psychrometry asked in ICAR AIEEA (PG)

Given below are two statements:
Statement (I): The direct measurement of relative humidity is done using hygrometer.
Statement (II): The most common method of measuring relative humidity is using dry and wet bulb thermometers.

In light of the above statements, choose the most appropriate answer from the options given below.

Psychometric chart can be used to find out
(A). Dew point temperature
(B). Triple point
(C). Humid volume
(D). Humidity

Choose the correct answer from the options given below:

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).

Assertion (A): Sensible heating of air increases the humidity of air.
Reason (R): Process of sensible heating is represented on the psychrometric chart by a straight horizontal line.

In light of the above statements, choose the correct answer from the options given below.

If the moisture content of a sample on dry basis is 100%; the moisture content expressed on wet basis will be

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Per cent of moisture content expressed on dry basis can never be beyond 100%.
Reason R: On dry basis, moisture content of a sample is expressed with reference to total dry matter content of the sample.
In light of the above statements, choose the correct answer from the options given below

Method of drying which works on the principle of sublimation -

Louisiana State University dryer is suitable for drying of
(A) Pulses
(B) Marine products
(C) Paddy
(D) Fruits and vegetables
Choose the correct answer from the options given below:

Given below are two statements, one labelled as Assertion (A) and the other labelled as Reason (R).

Assertion (A): LSU dryer is considered as a continuous flow-mixing type of grain dryer.

Reason (R): In LSU dryer, inverted V-shaped air channels are arranged in such a way that air is forced through the descending grain while moving from feed end to discharge end.

In light of the above statements, choose the correct answer from the options given below.

In the adiabatic drying process, if there is a decrease in the value of dry bulb temperature, then:

Falling rate period of drying process is one during which:
A. Drying rate depends mainly on properties of food material
B. Moisture is not available on the surface of food material
C. Drying rate decreases
D. Drying rate depends only on the capacity of drying air to pickup moisture from the surface
E. Drying rate remains constant
Choose the correct answer from the options given below:

Falling rate period of drying process is one during which:
A. Drying rate depends mainly on properties of food material
B. Moisture is not available on the surface of food material
C. Drying rate decreases
D. Drying rate depends only on the capacity of drying air to pickup moisture from the surface
E. Drying rate remains constant
Choose the correct answer from the options given below: