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

Which of the following conditions define saline soil?
(EC= Electrical conductivity of saturation extract and ESP = Exchangeable Sodium Percentage)
Given below are two statements:
Statement I: Soil erodibility is a function of the physical characteristics of the rainfall
Statement II: Soil erodibility is defined as the vulnerability or susceptibility of the soil to erosion
In light of the above statements, choose the most appropriate answer from the options given below
In the universal soil loss equation (USLE): A=RKLSCP, the parameter 'S' stands for
Method suitable for managing rainwater in black soil is
Which one of the following streambank protection measures is to be adopted where the stream takes to meandering; eroding the banks, and where the cuts are vertical?
Which of the following permanent gully control structure is used at the head to convey the water safely to the gully bed?
Laser leveler is used for
Effective diameter of aquifer material is defined as the diameter of the grains such that x % of the grains are finer. x =
Recommended top width of an embankment of farm pond up to a height of 3.0 m is
If the net amount of irrigation requirement is 8 cm and the field efficiency is 75 per cent, the gross amount to be applied to the field is
The speed in revolutions per minute of a geometrically similar centrifugal pump of such a size that under corresponding conditions, it would deliver 1 litre of liquid per second against a head of 1 m is known as
Match List I with List II
Choose the correct answer from the options given below:
Relationship between delta (d), Duty (D) and base period (B) is given as
One atmosphere soil moisture tension is equal to
Hydraulic gradient is defined as
Discharge could be determined for suppressed rectangular weir by which of the following formulae?
(where Q= discharge (liters/second), L= Length of crest (cm), and H = head on the crest (cm))
Permissible velocity in earth channel having sandy loam soil is
The average moisture extraction by plants from first 25% of soil depth is approximately
An irrigation stream of 30 l/s is diverted to a check basin of size \(12\text{ m} \times 10\text{ m}\). The water holding capacity of the soil is 15 %. The average soil moisture content in the root zone prior to applying water is 7 %. How long should the irrigation stream be applied in the basin to replenish the root zone moisture to its field capacity, assuming no loss due to deep percolation?
[The depth of the crop root zone may be assumed as 1.0 m. The apparent specific gravity of the root zone soil is 1.50]
Which of the following instruments is NOT used for determination of soil moisture content?
Pitcher irrigation is used for
The term piezometric surface is used for which of the following types of aquifers?
Discharge rating (litres/second) of a pump operating in area A (hectares), is given by which of the following relationships?
[ Where D is the depth of application (cm), E is field application efficiency (fraction), F is irrigation interval (days), and h is operation period per day (hours) ]
Movement of water into soil at the surface is called
One ton of refrigeration is equal to