List of top Questions asked in ICAR AIEEA (PG)- 2021

If a centrifugal pump is discharging 450 l/min of water with 5 hp motor having efficiency 80%, then calculate the total head, will be
Tile drains are usually spaced at
Given below are two statements
Statement I: Tube well in hard rock area are called bore well.
Statement II: Bore wells are generally not used for small scale irrigation.
In the light of the above statements, choose the most appropriate answer from the options given below:
If \(\eta_z =\) specific speed, \(\eta_1 =\) pump speed, \(Q =\) pump discharge, \(H =\) total head, then the mathematical expression for specific speed of a pump is:
Which of the followings is not an irrigation scheduling instrument?
If the flow rate of a 5 hp water pump is 250 l/min with a total head of 25 m, then the energy/electricity consumption of the pump will be
Which of the following statements are true in case of mean deviation (MD)?
A. MD is the average of deviation taken from a central value.
B. MD is not affected much by extreme values.
C. Algebraic negative signs of the deviation are ignored.
D. MD is minimum when deviation are taken from median.
E. MD is the average of the absolute deviation taken from a central value.
Choose the most appropriate answer from the options given below:
A bag contains 20 white balls and 4 red balls. One ball is drawn from the bag and it is replaced after noting its colour. In the second draw again one ball is drawn and its colour is noted and replaced. Find the probability of the event that both the balls are of different colours?
Arrange the following steps to estimate irrigation interval (days):
A. Compute the total number of irrigations over the growing season
B. Estimate gross irrigation depth
C. Calculate irrigation interval
D. Compute the irrigation water need over the total growing season
E. Estimate net irrigation depth
Choose the correct answer from the options given below:
Determine the gross irrigation requirement of the crop, if the field capacity of soil is 18 cm, water content in the root depth before irrigation is 12 cm, and peak consumptive use rate is 70 mm/day assuming the irrigation efficiency as 80%.
Given below are two statements
Statement I: Histogram is more suited for frequency distributions with continuous classes.
Statement II: In Histogram, the lower limit of a class is the upper limit of the previous class.
In the light of the above statements, choose the correct answer from the options given below:
The export of mangoes in million rupees from a district during eight weeks is given below. The median values of the set will be:
21.3, 29.7, 16.6, 2.3, 14.1, 36.6, 18.7, 3.5
What is the value of the determinant \(\begin{vmatrix} 1 & 2 1 & 3 \end{vmatrix}\)?
Given below are two statements
Statement I: A quadratic equation can have three distinct real roots.
Statement II: In quadratic equation \(ax^2 + bx + c = 0\), if \(b^2 - 4ac = 0\), then the quadratic equation has real and equal roots.
In the light of the above statements, choose the correct answer from the options given below:
The differentiation of the \(\sin(x^2 + 1)\) function with respect to \(x\), will be
The value of \(i^2\) (where \(i = \sqrt{-1}\)) is:
\(\frac{d}{dx}(\sec x) =\)
Which of the following concrete mix cement: sand: coarse aggregates is not used in reinforced concrete pipes?
Which of the followings is the safe permissible velocity of water flowing in a channel?
Given below are two statements
Statement I: Inverted siphon is not economical when a channel has to cross a wide depression or where road surface lies close to the field surface.
Statement II: Culverts are commonly used at channel crossing when the road fill is sufficiently high and channel bed lies on the field surface on either side.
In the light of the above statements, choose the correct answer from the options given below:
Which differential equation would be obtained, if the boundary layer transition from a boundary of zero thickness and the lateral inflow is zero in canal?
What is the return period generally adopted for design of a cross drainage works?
Non-protein organic part of the enzyme, which is essential for catalytic activities of the enzyme is known as
Find the surface tension in a soap bubble of 40 mm diameter when the inside pressure is 2.5 N/m² above atmospheric pressure.
The unit of kinematic viscosity in MKS system is