6. Experimental Methods
Instrumentation — Quiz
Test your understanding of instrumentation with 5 practice questions.
Practice Questions
Question 1
A student is using an oscilloscope to measure a sinusoidal AC voltage. The 'Volts/Div' setting is at $500 \text{ mV/Div}$ and the waveform spans $4.2 \text{ divisions}$ from its peak to its trough. What is the peak-to-peak voltage of the signal?
Question 2
In a data acquisition system, what is the primary role of the signal conditioning unit?
Question 3
A thermistor exhibits a negative temperature coefficient, meaning its resistance decreases as temperature increases. If a multimeter is set to measure resistance and connected to this thermistor, what observation would indicate a rising temperature?
Question 4
When using a digital multimeter to measure current, how should the multimeter be connected within the circuit to ensure an accurate reading without damaging the instrument or the circuit?
Question 5
A pressure sensor has a sensitivity of $0.05 \text{ V/kPa}$. If the sensor outputs a voltage of $2.8 \text{ V}$, what is the pressure being measured?