M5 Instrumentation Q2

What is Signal Coupling?

• Signal coupling is the process of connecting signals to allow interaction between them.
• Signal coupling is the process of converting signals into digital format.
• Signal coupling refers to the isolation of signals from each other.
• Signal coupling is a method of amplifying signals.

What is the resolution of the ADC included in the Arduino Uno?

• 8-bit

• 10-bit

• 12-bit

• 16-bit

What is the digital representation of 5V Analog Input in Arduino?

• B0000000000

• B1111111111

• B0000000101

• B1111111101

What is the digital representation of the 0V analog input value?

• B0000000000 (0)

• B1111111111 (1023)

• B00000000 (0)

• B11111111 (255)

What is the digital representation of the 5V PWM output value?

• B0000000000 (0)

• B1111111111 (1023)

• B00000000 (0)

• B11111111 (255)

What is the precision of the ADC in terms of voltage?

• 4.88 mV

• 19.6 mV

• 10 mV

• 1 mV

What is the resolution of the PWM output in the Arduino Uno?

• 8 bits

• 10 bits

• 12 bits

• 16 bits

How do you convert the ADC value of 123 into a useful voltage measurement?

• (123) * (5000) / 1023

• (123) * (1023) / 5000

• (123) * (5000) / 255

• (123) * (255) / 5000

What is the main purpose of signal coupling in instrumentation systems?

• To reduce the physical size of the sensor

• To transmit data wirelessly

• To transfer a signal safely and compatibly to a control system

• To increase the current of the signal

Which of the following are advantages of using optocouplers in coupling circuits?

• Full galvanic isolation

• Suitable for analog signal scaling

• Noise immunity in industrial environments

• High current amplification