List of top Instrumentation Engineering Questions

Which of the following pulse modulation is analog?

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

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

How many special function registers are there in 8051 microcontroller?

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}

The logic circuit shown in the figure is

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

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?

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

Which has the highest fan-out?

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

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

Which one of the following statements is True?

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

A unit step input is applied to the negative feedback system whose closed loop transfer function is $\frac{63}{S^2 + 4.8S + 9}$, then the steady state value of the output is}

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

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

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 phase margin of a system is zero degrees, then the system is

The derivative of a parabolic function becomes

For the two-port network shown in figure, The voltages and currents are given by a relation $V_1 = 2 I_1 + I_2$ and $V_2 = I_1 + I_2$. The admittance matrix $[Y]$ of this network is

A McLeod gauge having volume of bulbs and mercury capillary, $V = 100 \times 10^{-6}\text{ m}^3$ and the diameter of measuring capillary is $1\text{ mm}$. For the reading of $60\text{ mm}$, the pressure will be}