List of top Questions asked in ICAR AIEEA (PG)- 2023

The softwood grafting

Statement (I): Is done with mature, procured scion on the emerging soft, coppery-red shoot of the rootstock, which is 60-70 days old.

Statement (II): Is used for raising desired varieties of mango, sapota, tamarind and cashew.

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

Convert 1300 ppm sodium chloride salt concentration into meq/l

Given below are two statements:
Statement (I): The axis of the bubble tube should be perpendicular to the vertical axis in dumpy level.
Statement (II): The line of collimation of the telescope of the dumpy level should be perpendicular to the axis of the bubble tube.
In light of the above statements, choose the most appropriate answer from the options given below.

The design of bench terraces consists in determining the:
(A) type of bench terraces
(B) terrace spacing
(C) terrace cross section
(D) terrace length
(E) terrace alignment
Choose the correct answer from the options given below:

Orchard bench terraces has a width of about

Which land capability classes are suitable for pastures?

A quantity of 100 ml gypsum solution having 36 meq/l concentration as calcium, on reacting with 5 gm of an alkali soil showed 32 meq/l of Ca+Mg concentration in the filtrate. Estimate the gypsum requirement in meq/100 gm of soil.

Match List-I with List-II.

List-I	List-II
(A) Close contour lines	(I) foot hill
(B) Wider contour lines	(II) higher contour values outside
(C) Depression	(III) at right angles
(D) Crossing of ridge lines	(IV) top of hill

Choose the correct answer from the options given below:

Which points should be kept in mind while selecting the stations?
(A) The survey lines should be as few as possible.
(B) If possible, a base line should be run roughly through the middle of the area on which the framework of triangles covering the major portions of area may be built up.
(C) Offsets should be long particularly for locating the important features.
(D) All the triangles should be well conditioned.
(E) The main principle of surveying is to work from the part to the whole.
Choose the correct answer from the options given below:

Given below are five statements about levelling:
(A) In levelling, datum surface is an arbitrary surface with reference to which the elevations of the points are measured and compared.
(B) The line of collimation or the line of sight is the line joining the intersection of the cross-hairs to the optical centre of the object glass and its continuation.
(C) A foresight is the first staff reading taken after setting up the instrument in any position.
(D) The height of instrument is the elevation of the plane of collimation when the instrument is levelled.
(E) A change point indicates the shifting of the instrument, both back sight and intermediate sight are taken on this change point.
Choose the correct answer from the options given below:

Given below are five statements about land levelling design:
(A) The plan inspection method of land levelling design is adapted for moderate to flat land slopes.
(B) The profile method of land levelling design consists of plotting the profiles of the grid lines and then laying the desired grade on the profiles.
(C) The contour adjustment method of land levelling design consists of a trial and error adjustment of the contour lines on a plan map.
(D) The contour adjustment method is especially adapted to the smoothening of flat lands that are to be irrigated.
(E) The plane method is rarely used for land levelling design.
Choose the correct answer from the options given below:

Given below are five statements about floods:
(A) Floods are exceedingly complex natural events. They are resultant of a number of component parameters and are therefore very difficult to model them analytically.
(B) In the regions having same climatological characteristics, if the available flood data are quite insufficient, the enveloping curve technique can be used to develop a relationship between the minimum flood flow and drainage area.
(C) For design purposes, extreme rainfall situations are used to obtain the design storm.
(D) The rational formula is found to be suitable for a peak flow prediction in small catchments upto 75 km\(^2\) in an area.
(E) The rational formula assumes a homogeneous catchment surface.
Choose the correct answer from the options given below:

Given below are two statements:
Statement (I): Water storage efficiency becomes important when water supplies are limited or when excessive time is required to secure adequate penetration of water into the soil.
Statement (II): Water application efficiency decreases as the amount of water applied during each irrigation increases.
In light of the above statements, choose the most appropriate answer from the options given below.

Given below are two statements:
Statement (I): Chute spillways carry the flow down the steep slopes through a lined channel rather than by dropping the water in a free overfall.
Statement (II): On steep slopes, chutes are more economical than series of drop structures to take the flow down the slope.
In light of the above statements, choose the most appropriate answer from the options given below.

Given below are two statements:
Statement (I): Isotropic and homogeneous aquifers seldom occur in nature.
Statement (II): Water level measurements during pumping test are made in observation wells installed close to the well or at some distance away from it.
In light of the above statements, choose the most appropriate answer from the options given below.

The limitations to the use of unit hydrographs are:
(A) Snow melt runoff cannot be satisfactorily represented by unit hydrograph.
(B) The catchment should not have unusually large storages in terms of tanks, ponds, large flood bank storages, etc. which affect the linear relationship between storage and discharge.
(C) If the precipitation is decidedly uniform, unit hydrographs can not be expected to give good results.
(D) The rainfall intensity is assumed constant for the duration of the rainfall excess.
(E) The duration of rainfall should be 1/6 to 1/2 of the basin lag.
Choose the correct answer from the options given below:

Given below are two statements:
Statement (I): Penman proposed an equation for evaporation from an open water surface based on a combination of energy balance and sink strength.
Statement (II): For converting PET into ET, suitable crop coefficients should be evolved for different crops, soils and climatic conditions, and also for different stages of growth for the same crop.
In light of the above statements, choose the most appropriate answer from the options given below.

(A) Majority of red soils are loams with values of pH ranging between 5.0 to 8.0.
(B) Laterite soils which are generally acidic have an average pH range between 6.0 to 7.0.
(C) Red and yellow soils have a pH around neutrality or else slightly on the acidic side.
(D) Desert soils have fairly high pH and varying amounts of calcium carbonate.
(E) The alkali soils have a high pH which may range between 7.0 and 8.0.
Choose the correct answer from the options given below:

Match List-I with List-II.

List-I	List-II
(A) Hygroscopic water	(I) no of hydrogen nuclei
(B) Capillary water	(II) mean monthly temperature
(C) Neutron moisture meter	(III) adsorption forces
(D) Blaney-Criddle	(IV) surface tension

Choose the correct answer from the options given below:

Given below are two statements:
Statement (I): In small catchments the overland flow phase is predominant over the channel flow. Hence the land use and the intensity of rainfall have an important role on the peak flood.
Statement (II): On large catchments the effects of land use and intensity of rainfall are suppressed as the channel flow phase is more predominant.
In light of the above statements, choose the most appropriate answer from the options given below.

A 12-h unit hydrograph of a catchment is triangular in shape with a base width of 144 h and a peak discharge of 23 cumec. This unit hydrograph refers to a catchment area of

Which statements are incorrect?
(A) In the field, soil moisture content determined by the gravimetric method is used as the reference in calibrating the other soil moisture instruments.
(B) Resistance blocks are useful for saline soils, since the resistance reading is not affected by salt concentration.
(C) The principle of the neutron probe moisture meter is based on the measurement of the number of carbon nuclei that are present in a unit volume of soil.
(D) Tensiometer satisfactorily measures the entire range of available moisture in all soil types.
(E) In sprinkler irrigation the soil moisture measuring stations should be between the sprinkler heads and 3 to 4 m away from the lateral.
Choose the correct answer from the options given below:

Which parameter is not a soil moisture constant?

(A) The process of evaporation of water in nature is one of the fundamental components of the hydrological cycle.
(B) Transpiration is the process by which water vapour leaves the atmosphere and enters the plant body.
(C) Potential evapo-transpiration is the evapo-transpiration from a large vegetation covered land surface with adequate moisture at all times.
(D) The soil and crop conditions in the lysimeters should be close to the natural conditions.
(E) Soil moisture depletion method is usually employed to determine the consumptive use of unirrigated field crops.
Choose the correct answer from the options given below:

Given below are two statements:
Statement (I): The gravitational potential is independent of the relative elevation and is dependent on chemical and pressure conditions of soil water.
Statement (II): Osmotic potential can be defined as the amount of work that a unit quantity of water in an equilibrium soil water system is capable of doing when it moves to another equilibrium system identical in all respects except that there are no solutes.
In light of the above statements, choose the most appropriate answer from the options given below.