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

In hydrometer method of sedimentation analysis, which correction is always negative?
Amount of heat required to change unit mass of substance from one phase to another phase is known as:
Given below are two statements
Statement I: The stage at which the change of shape of material becomes more rapid than the increase of force is called 'yield point'.
Statement II: After yield point the change of shape is permanent
In light of the above statements, choose the most appropriate answer from the options given below
A weight lifting machine is used to lift a load of 70 kg through 30 cm distance. If 30 kg load is applied to move a distance 100 cm, find efficiency of the machine.
If 80 kg MB plough is pulled by a horizontal force of 46 kg, find the angle of friction between plough body and horizontal surface.
Density index or relative density is defined as
In a 4-bar linkage, if the lengths of shortest, longest and other two links are denoted by s, l, p and q, then it would result in Grashof's linkage provided
When two pulleys of different diameters are connected by means of an open belt drive, then the angle of contact taken into consideration should be of the
Given below are two statements
Statement I: Pump coverts mechanical power to fluid power and actuator converts hydraulic power to mechanical power
Statement II: Hydraulic cylinder provides rotary mechanical power and hydraulic motor provides linear mechanical power
In light of the above statements, choose the most appropriate answer from the options given below
A beaker is filled with water at 4° C. One time temperature is increased by few degrees above 4° C and another time it is decreased few degrees below 4° C. One shall observe that
The correct relationship between Pecklet number (Pe), Reynold number (Re), Prandtl number (Pr), Rayleigh number (Ra) and Grashoff number (Gr) is
Match List I with List II

List I & List II
A. Conduction & I. Stefan-Boltzmann Law
B. Convection & II. Fick's Law
C. Radiation & III. Newton's law of cooling
D. Mass Transfer & IV. Fourier Law

Choose the correct answer from the options given below:
On a cold morning, a metal surface on touching is felt colder than a wooden surface because the metal has
Cold air at 10°C is forced to flow over a plate maintained at 40°C. The mean heat transfer coefficient is (\(h_m\)= 30 W/m²·°C). The heat flow rate from plate to air through a plate area of A=2 m² will be
11001 in binary system corresponds to following number in decimal system
Which of the following parts of DC motor can sustain maximum temperature rise?
Match List I with List II

List I & List II
A. Precision & I. Maximum distance or angle through which any part of mechanical system may be moved without causing motion of next part
B. Drift & II. Smallest increment in measurand that can be detected with certainty by instrument
C. Resolution & III. Gradual departure of the instrument output from the calibrated value
D. Backlash & IV. The ability of device to give identical output on repetition of same input signal

Choose the correct answer from the options given below:
Given below are two statements
Statement I: Correctness or exactness in measurements is associated with accuracy and not with the precision
Statement II: It is not possible to have precise measurements which are not accurate
In light of the above statements, choose the correct answer from the options given below
In an electric circuit, current is directly proportional to electromotive force and inversely proportional to the resistance. This is known as
Transformer is a device used for
In power transmission slip is usually expressed as the percentage of
Find the value of \( \frac{d(\tan x){dx} \)}
The value of integral \( \int (7x^6 + 1) dx \) is
The best measure of central tendency and dispersion are respectively
Objective function and constraints are part of