List of top Instrumentation Engineering Questions

An amplifier has an open-loop gain of \(100\) and feedback factor of \(0.05\). The closed-loop gain is approximately
A V-I converter uses a \(500\,\Omega\) resistor. For an input voltage of \(2\,\text{V}\), the output current is
Which feedback configuration is commonly used for voltage amplifiers?
The input impedance of an ideal op-amp is
In an inverting op-amp, the voltage gain is
The main advantage of a precision rectifier over a diode rectifier is
At high frequencies, a transistor model must include
Negative feedback in amplifiers results in
The mid-band gain of an amplifier is measured when
Compared to a single-stage amplifier, a multi-stage amplifier generally has
If each stage of a three-stage amplifier has a gain of \(10\), the overall gain in dB is
A CE amplifier has \(h_{fe}=100\) and load resistance \(R_L=2\,\text{k}\Omega\). The approximate low-frequency current gain is
A full-wave rectifier has a peak voltage of \(100\,\text{V}\). The average output voltage is
A JFET has \(I_{DSS}=10\,\text{mA}\) and pinch-off voltage \(V_P=-4\,\text{V}\). If \(V_{GS}=-3\,\text{V}\), find the value of \(I_D\)?
Force measurement using strain gauges is based on the principle of
A BJT has \(\beta=100\). If the base current is \(40\,\mu\mathrm{A}\), then the collector current is
In the saturation region of a MOSFET, the drain current is primarily controlled by
A U-tube manometer uses mercury \((\rho = 13,600\ \mathrm{kg/m^3})\). If the level difference is \(10\ \mathrm{cm}\), then the pressure difference is approximately
A silicon diode has a forward voltage drop of \(0.7\ \mathrm{V}\). If it is connected in series with a \(1\,\mathrm{k}\Omega\) resistor to a \(5\ \mathrm{V}\) supply, then the forward current is
An LVDT produces an output of \(5\,\mathrm{mV/mm}\) sensitivity. For an excitation of \(10\,\mathrm{V}\) and displacement of \(2\,\mathrm{mm}\), the output voltage is
An orifice meter is installed in a pipe of diameter \(20\,\text{cm}\). If the discharge coefficient is assumed constant, the flow rate is proportional to
The principle of McLeod Gauge is the compression of a sample of a low pressure gas to a pressure sufficiently high to read with a
A synchro is mainly used to measure
Which signal conditioning circuit is used with piezoelectric transducers?
A rotary encoder has \(360\) pulses per revolution. The angular resolution is