List of top Questions asked in Andhra Pradesh Post Graduate Engineering Common Entrance Test

Value of pH solution is 4. It indicates that the concentration of hydrogen ions is:
The resistance of the thermistor is 5000 $\Omega$ at 20°C and its resistance temperature coefficient is 0.04°C. A measurement with a lead resistance of 10 $\Omega$ will cause an error of:
Which of the following is an inverse transducer?
A force digital transducer measures the pressure in the range of 0-200 N with a resolution of 0.1% of full scale. The smallest charge it can measure is:
In a venturimeter, the flow is 0.15 m$^3$/s when the differential pressure is 30 kN/m$^2$. What is the flow when the differential pressure is 60 kN/m$^2$?
The principle of operation of LVDT is based on the operation of:
The devices which are used for the measurement of very high temperature are:
An example of variable area device for measuring flow is:
The input impedance of CRO is nearly:
The gauge factor of semiconductor strain gauge is in the range of:
Dummy strain gauge is used:
Gauge factor of strain gauge indicates its:
The gauge factor of semiconductor strain gauge is higher than ordinary metal wire resistive strain gauge because of:
The probability of a component being defective is 0.01. There are 100 such components in a machine. Then the probability of two or more defective components in the machine is _______
A number is selected randomly from each of the following two sets:
{1, 2, 3, 4, 5, 6, 7, 8}, {2, 3, 4, 5, 6, 7, 8, 9}
What is the probability that the sum of the numbers is 9?
If the function \( f(z) = -x^2 + xy + y^2 + i(ax^2 + bxy + cy^2) \) of complex variable \(z = x + iy\) is analytic in the complex plane, then the values of \(a, b, c\) are _______
Let \( f(x,y) = e^{-x} \sin(-y), g(x,y) = e^{-x} cos(-y) \), and \( C \) be the square with vertices at \( (0,0), (\frac{\pi}{2},0), (\frac{\pi}{2},\frac{\pi}{2}), (0,\frac{\pi}{2}) \). Then, the value of the line integral \( \oint_C [f(x,y)dx + g(x,y)dy] \) is _______
Let \( A \) be a \(3 \times 3\) matrix and \( B = 2A^2 + A^{-1} - I \), where \( I \) is a \(3 \times 3\) identity matrix. If the eigenvalues of \( A \) are 1, –1 and 2, then the trace of \( B \) is ________
Let \( A = \begin{bmatrix} a+1 & b & c \\ a & b+1 & c \\ a & b & c+1 \end{bmatrix} \). If determinant of the matrix \( A \) is zero, then \( (a + b + c)^3 = \_\_\_\_\_\_ \)
The Ebers-Moll model is applicable to ________.

The circuit shown in figure is

In JFET, drain current is primarily controlled by ________.
On a transmission line with standing wave the distance between a voltage maximum and adjacent current maximum is ________.
The ratio of the power radiated by an antenna to the total input power to the antenna is termed ________.
The number of propagating modes through an air filled rectangular waveguide of dimensions, \( a = 5 \text{ cm} \) and \( b = 2.5 \text{ cm} \) at 8 GHz frequency is ________.