Electrical Measurements and Instrumentation MCQs (Part-2)

Which of the following is used to measure the resistance of a component?

A Ohmmeter
B Wattmeter
C Ammeter
D Voltmeter

What is the primary function of a transducer?

A Store data
B Measure current
C Generate power
D Convert physical quantity

Which of the following measures voltage in a circuit?

A Ammeter
B Frequency meter
C Voltmeter
D Ohmmeter

What type of sensor measures temperature?

A Thermocouple
B Piezoelectric sensor
C Pressure sensor
D Strain gauge

Which instrument is used for measuring electrical frequency?

A Oscilloscope
B Frequency meter
C Galvanometer
D Multimeter

What does a wattmeter measure in a circuit?

A Current
B Frequency
C Voltage
D Power

Which type of measurement error occurs due to imperfections in the instrument?

A Systematic error
B Instrumental error
C Random error
D Gross error

What is the purpose of a signal conditioner in a measurement system?

A Convert signal type
B Filter noise
C Amplify signal
D Store data

What is measured by a strain gauge?

A Voltage
B Strain
C Pressure
D Current

What does a current transformer (CT) primarily do?

A Measure current
B Step up voltage
C Measure resistance
D Step down current

In which scenario would you use a potential transformer (PT)?

A For voltage measurement
B For strain measurement
C For power measurement
D For current measurement

Which instrument is used to measure the phase difference between two signals?

A Voltmeter
B Frequency meter
C Oscilloscope
D Phase meter

What is the main function of an energy meter?

A Measure power
B Measure energy consumption
C Measure voltage
D Measure resistance

Which of the following is used to measure very high voltages?

A High voltage probe
B Strain gauge
C Ammeter
D Wattmeter

What is the role of a bridge circuit in electrical measurements?

A Filter signals
B Convert AC to DC
C Measure resistance accurately
D Measure power