List of top Instrumentation Engineering Questions on Electrical and Electronic Measurements

If a voltmeter has a full-scale deflection of \(100\,\text{V}\) and the smallest division is \(0.5\,\text{V}\), its resolution is
Sensitivity of an instrument is defined as
Phase difference between two signals is commonly measured using
Frequency is most accurately measured using
The limiting error of an instrument is usually specified as
The power measured during the open-circuit test mainly represents
A DC motor has an input power of \(5\,\text{kW}\) and total losses of \(1\,\text{kW}\). The efficiency of the motor is
Which of the following is a constant loss in an electric machine?
Frequency is most accurately measured using
Phase difference between two signals is commonly measured using
The limiting error of an instrument is usually specified as
Sensitivity of an instrument is defined as
If a voltmeter has a full-scale deflection of \(100\,\text{V}\) and the smallest division is \(0.5\,\text{V}\), its resolution is
A DC motor has an input power of \(5\,\text{kW}\) and total losses of \(1\,\text{kW}\). The efficiency of the motor is
Which of the following is a constant loss in an electric machine?
The power measured during the open-circuit test mainly represents
The error signal produced in a control system is constant. The output of derivative action will be
Which of the following devices is not needed in measurement of velocity of rolled bars in a rolling mill?
PH meter has
Which of the following instruments indicate the instantaneous value of the electrical quantity being measured at the time at which it is being measured?
Minimum number of comparators required to implement 6-bit flash ADC
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 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?
Low resistance is measured by
The number of comparators required in an 8-bit flash-type A/D converter is