List of top Instrumentation Engineering Questions asked in TS PGECET

Semiconductor strain gauges typically have much higher gauge factors than metallic strain gauges, primarily due to

The power measured during the open-circuit test mainly represents

Which of the following is TRUE?

A \(50\,\mathrm{Hz}\) sinusoidal voltage has a peak value of \(141\,\mathrm{V}\). Its RMS value is

In Thevenin's theorem, if a circuit has \(V_{th}=20\,\mathrm{V}\), \(R_{th}=4\,\Omega\), then the load current for \(R_L=4\,\Omega\) is

In a parallel resonant circuit, the line current at resonance is

A series RLC circuit has \(L=0.1\,\mathrm{H}\) and \(C=10\,\mu\mathrm{F}\), then the resonant frequency is

An AC circuit has \(V_{\mathrm{rms}}=230\,\mathrm{V}\), \(I_{\mathrm{rms}}=5\,\mathrm{A}\) and power factor \(=0.8\), then the active power consumed is

A series RLC circuit has \(L=0.5\,\text{H}\), \(C=0.02\,\text{F}\). For critical damping, the required resistance \(R\) is

Which of the following best represents an ideal current source?

Biot--Savart's law is most suitable for calculating magnetic field due to

If a solenoid has \(500\) turns, length \(0.5\,\text{m}\) and cross-sectional area \(4\times10^{-4}\,\text{m}^2\), then its self-inductance is

A capacitor of \(50\,\mu\mathrm{F}\) is connected to a \(200\ \mathrm{V}\) battery. A dielectric of \(K=4\) is inserted. Find the new capacitance and stored energy.

Magnetic flux through a coil changes from \(8\ \mathrm{mWb}\) to \(2\ \mathrm{mWb}\) in \(0.2\ \mathrm{s}\). What is the induced emf?

EMG signals have the highest frequency among EEG, ECG, and EMG because

Third-generation CT scanners use

Alpha waves are dominant when a person is

Which optical source is preferred for long-distance, high-speed fiber communication?

Ultrasonic transducers in medical imaging are based on

Compared to single-mode fibers, multimode fibers have

An increase in reverse bias of a photodiode results in

In a Michelson interferometer, one fringe shift corresponds to a mirror displacement of

Numerical Aperture (NA) of an optical fiber is given by

A photodiode with a bandgap energy of \(1.43\ \text{eV}\) has a cut-off wavelength approximately equal to

The typical mid-IR region lies between