List of top Questions asked in AP PGECET

The z-transform of the discrete time signal $x(n) = u(-n)$ is

X and Y plates of a CRO are connected to unequal voltages of equal frequency with phase of $90^\circ$. The Lissajous figure on the screen will be

The root mean squared value of $x(t) = 3 + 2\sin(t)\cos(2t)$ is

The full scale deflection current of an ammeter is 1mA and its internal resistance is $100\Omega$. If this meter is to have full deflection of 5A, what is the value of the shunt resistance to be used?

Which of the following pulse modulation is analog?

A PLL can be used to modulate

The output of two digital filters can be added or the same effect can be achieved by

Low resistance is measured by

The period of signal $x(t) = 10\sin 5t - 4\cos 9t$ is

The Fourier transform of signal $\delta(t+1) + \delta(t-1)$ is

The logic circuit shown in the figure is

The number of comparators required in an 8-bit flash-type A/D converter is

A digital voltmeter uses a 10MHz clock and has a voltage controlled generator which provides a width of $10\mu\text{s}$ per volt of unit signal. 10V of input signal would corresponds to a pulse count of}

How many special function registers are there in 8051 microcontroller?

Which has the highest fan-out?

The minimum number of NOR gates required to implement A(A+B)(A+B+C) is equal to

Identify the logic gate family, which is slowest among the given logic?

A 10-bit A/D converter is used to digitize an analog voltage signal in $0 - 5\text{V}$ range. The maximum peak to peak ripple voltage that can be allowed in DC voltage is}

What is size of bit addressable memory in 8051 microcontroller?

The advantage of using dual slope ADC in a digital voltmeter is that

If the open loop transfer function of a system is $G(s)H(s) = \frac{K(s+1)}{s(s+3)(s+4)}$ then its centroid is:

If the negative feedback system is marginally stable, then the location of closed loop poles will be

A Bode plot of a transfer function G(s) is shown in the figure. The gain 'A' in dB at frequency f = 100Hz is:

Which one of the following statements is True?

For critically damped system, the value of the damping ratio $\zeta$ is: