Electrical Measurements and Instrumentation Quiz

Test your understanding of electrical measurements and instrumentation with this quiz. Questions cover voltage, resistance, transducers, oscilloscopes, and more.

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Which instrument is used to measure DC voltage?

Ammeter

Voltmeter

Ohmmeter

Wattmeter

1 answered

What is the SI unit of electrical resistance?

Volt

Ampere

Ohm

Watt

1 answered

What is the function of a transducer?

To convert electrical energy into mechanical energy

To convert mechanical energy into electrical energy

To convert analog signals into digital signals

To measure temperature

1 answered

What is the function of a galvanometer?

To measure voltage

To measure current

To detect and measure small electric currents

To measure resistance

1 answered

Which material is commonly used as a core in transformers?

Copper

Aluminum

Iron

Silver

1 answered

Which of the following is a passive transducer?

LVDT

Thermocouple

Strain gauge

Photovoltaic cell

1 answered

What is the primary function of an oscilloscope?

Measure resistance

Display voltage vs. time graph

Measure current

Display power vs. time graph

1 answered

What is the principle behind the operation of a thermocouple?

Piezoelectric effect

Photoelectric effect

Seebeck effect

Hall effect

1 answered

Which of the following instruments is used to measure high-frequency AC signals?

Multimeter

Digital oscilloscope

Megger

Function generator

1 answered

#10

Which of the following is used to measure the power factor of a circuit?

Wattmeter

Ammeter

Voltmeter

Power factor meter

1 answered

#11

What is the purpose of a shunt resistor in an ammeter?

To increase sensitivity

To decrease sensitivity

To measure voltage

To measure current

1 answered

#12

In a Wheatstone bridge, what happens when the ratio of the resistances in the two arms are equal?

The bridge becomes unbalanced

The bridge becomes balanced

The voltage across the bridge becomes zero

The bridge becomes sensitive to noise

1 answered

#13

What is the function of a strain gauge?

To measure temperature

To measure pressure

To measure displacement

To measure humidity

1 answered

#14

What is the function of a photovoltaic cell?

To measure light intensity

To convert light energy into electrical energy

To measure temperature

To measure pressure

1 answered

#15

What is the purpose of a piezoelectric sensor?

To measure temperature

To measure pressure

To measure speed

To measure humidity

1 answered

Electrical Measurements and Instrumentation Quiz

Which instrument is used to measure DC voltage?

What is the SI unit of electrical resistance?

What is the function of a transducer?

What is the function of a galvanometer?

Which material is commonly used as a core in transformers?

Which of the following is a passive transducer?

What is the primary function of an oscilloscope?

What is the principle behind the operation of a thermocouple?

Which of the following instruments is used to measure high-frequency AC signals?

Which of the following is used to measure the power factor of a circuit?

What is the purpose of a shunt resistor in an ammeter?

In a Wheatstone bridge, what happens when the ratio of the resistances in the two arms are equal?

What is the function of a strain gauge?

What is the function of a photovoltaic cell?

What is the purpose of a piezoelectric sensor?

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