List of top Instrumentation Engineering Questions

The devices which are used for the measurement of very high temperature are

The transfer function of the circuit as shown in the figure is expressed as

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}

A resistance potentiometer is:

A resistance potentiometer has a total resistance of $10000\ \Omega$ and is rated $4\text{ W}$. If the range of the potentiometer is $0$ to $100\text{ mm}$, then its sensitivity in $\text{V/mm}$ is:

A Pirani gauge measures vacuum pressure and works on the principle of

Thermoelectric cooler works on the principle of

The minimum value of input which is necessary to cause a detectable change from zero output is called:

A strain gauge has a nominal resistance of $600\ \Omega$ and a gauge factor of 2.5. The strain gauge is connected in a DC bridge with three other resistances of $600\ \Omega$ each. The bridge is excited by a $4\text{ V}$ battery. If the strain gauge is subjected to a strain of $1\ \mu\text{m/m}$, the magnitude of the bridge output will be}

Which of the following statement is incorrect in a series-series feedback?

A thermistor has a resistance of $10\text{ k}\Omega$ at $25^\circ\text{C}$ and $1\text{ k}\Omega$ at $100^\circ\text{C}$. The range of operation of is $0^\circ\text{C}$ to $150^\circ\text{C}$. The excitation voltage is $5\text{V}$ and a series resistance of $1\text{ k}\Omega$ is connected to the thermistor. The power dissipated in the thermistor is}

The capacitance, in force-current analogy, is analogous to

For overdamped systems, the closed loop poles are

Phase margin of a system is used to specify which of the following?

The gain margin of a system can be determined from the gain at

For a negative feedback amplifier as shown in the figure, the type of feedback present in the circuit is

The avalanche breakdown voltage of a p-n junction:

In a common emitter amplifier, which one of the following statement is TRUE?

The average value of a half wave rectified sinusoidal voltage with peak amplitude 10 Volts is

Which of the following statements is true with respect to effective mass of an electron in a semiconductor lattice?

A voltage follower is as shown in figure. Given that the open loop gain of an op-amp (A = 99), then what is the value of the output voltage $V_o$. Assume that the op-amp is ideal except that it is having a finite open loop gain.

The equivalent capacitance for the network shown in the figure is

A particular band-pass function has a network function as $H(s) = \frac{3s}{s^2+4s+3}$ then its quality factor Q is defined by}

Find the value of Z(s) in the figure

A circuit which resonates at $1\text{ MHz}$ has Q of 100. Bandwidth between half-power point is}