List of top Questions asked in ICAR AIEEA (PG)

The minimum land slope required for irrigation through surface methods is:
Match List I with List II:
List I
A. Water meter
B. Parshall flume
C. Current meter
D. Stilling well
E. Meter gate
List II
I. Measurement of flow in rivers and canals
II. Flow measurement in parshall flumes
III. Measurement of flow in pipes
IV. Flow measurement in open channels
V. Modified submerged orifice
Choose the correct answer from the options given below:
The most suitable device for the measurement of flow in irrigation furrow is
Given below are two statements:
Statement I: Check basin irrigation is mostly used for cultivation of rice crop in India
Statement II: The size of the check basins in rice fields varies with the size of the irrigation stream and does not depend on the infiltration characteristics of the soil.
In light of the above statements, choose the correct answer from the options given below:
Lake evaporation measured by
The ratio of crop yield to the amount of water depleted by the crop during ET is called as
Operating pressure for sprinkler head is considered as most practical ranging from
On sloping fields the submain pipe should be laid
The overland flow in an irrigation border strip is a case of
Given below are two statements
Statement I: Electrochemical potential is always exhibited by electrically neutral solutes in soil.
Statement II: Electrostatic potential exhibited by charged as well as non-charged solutes in soil.
In light of the above statements, choose the correct answer from the options given below
Volume of water present in total pore volume of soil is referred as
Fourier's law is applicable for
Match List I with List II

List I (Crop) & List II (Effective root zone depth (cm))
A. Rice & I. 40
B. Maize & II. 90
C. Safflower & III. 120
D. Wheat & IV. 180

Choose the correct answer from the options given below:
Water potential is a measure of
The dimension of Hydraulic Conductivity is
Soil consistency depends upon physical forces of
Given below are two statements
Statement I: Alkali soils turn black when wet because of humic acid fracton of organic matter.
Statement II: A sparingly soluble salt like gypsum is always present in alkali soils.
In light of the above statements, choose the correct answer from the options given below
Normality of $\text{H}_2\text{SO}_4$ is}
The essentiality of nitrogen for plant growth was discovered by
Given below are two statements
Statement I: In wet tri-acids oxidation, $\text{HNO}_3 - \text{H}_2\text{SO}_4 - \text{HClO}_4$ are used for release of nutrients from plants tissues.
Statement II: In tri-acid mixture AR Grade concentration $\text{HNO}_3$, $\text{H}_2\text{SO}_4$ and $\text{HClO}_4$ are used in the ratio of 4 : 1 : 10, respectively.
In light of the above statements, choose the correct answer from the options given below
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Infiltration rate is found to vary inversely with soil moisture content.
Reason R: With the increase in soil moisture content, the soil pores are filled with water.
In light of the above statements, choose the correct answer from the options given below
In a soil saturated with water
The settling rates of dispersed soil particles in hydrometer method of soil texture determination is governed by
How porosity, bulk density and particle density are related?
Assumptions made in Darcy's law are
A. Kinetic energy of water is negligible
B. Mass density of water is constant
C. Viscosity of water is constant
D. Flow is turbuelnt
E. Viscosity of water is not constant
Choose the correct answer from the options given below: