Question 1

Which of the following ADC circuits has the highest resolution?

Accepted Answer

A) 16 bit 
B) one that has the highest aperture time 
C) 4 bit 
D) none of the above 
A) 16 bit 
B) one that has the highest aperture time 
C) 4 bit 
D) none of the above

Question 2

Since the triac can be triggered to allow current to flow both directions, it can be used in:

Accepted Answer

A) phase control. 
B) dc circuits. 
C) ac circuits. 
D) any of the above. 
A) phase control. 
B) dc circuits. 
C) ac circuits. 
D) any of the above.

Question 3

The diode clamper circuit output is an ac signal that has a dc reference point of the peak voltage of the ac.

Accepted Answer

A) True 
 B)False

Question 4

Voltage storage in a sample and hold amplifier is accomplished by:

Accepted Answer

A) a JFET switch 
B) a holding inductor. 
C) a holding capacitor. 
D) the output buffer op-amp. 
A) a JFET switch 
B) a holding inductor. 
C) a holding capacitor. 
D) the output buffer op-amp.

Question 5

A voltage-to-current converterW orks by controlling current proportional to the input Voltage.

Accepted Answer

A) True 
 B)False

Question 6

An active limiter includes an op-ampW hich:

Accepted Answer

A) works better under loaded conditions. 
B) keeps the circuit from oscillating. 
C) increases the output Voltage. 
D) allows a reference level to be set. 
A) works better under loaded conditions. 
B) keeps the circuit from oscillating. 
C) increases the output Voltage. 
D) allows a reference level to be set.

Question 7

Conversion of analog signals to digital signals is common in most controlled industrial processes.

Accepted Answer

A) True 
 B)False

Question 8

A voltage-to-current converter has a JFET in the feedback loop.

Accepted Answer

A) True 
 B)False

Question 9

Which statement best describes the action of an OTA amplitude modulator?

Accepted Answer

A)  The power supply bias adjusts the output level. 
B)  Variations of light intensity adjust the gain of the amplifier. 
C)  The variations of voltages applied to the current bias input adjusts the gain of the amplifier. 
D)  The OTA is versatile and can be configured to work in any of these ways. 
A)  The power supply bias adjusts the output level. 
B)  Variations of light intensity adjust the gain of the amplifier. 
C)  The variations of voltages applied to the current bias input adjusts the gain of the amplifier. 
D)  The OTA is versatile and can be configured to work in any of these ways.

Question 10

Pressure sensors make use of an RTD for their operation.

Accepted Answer

A) True 
 B)False

Question 11

One method of providing an accurate thermocouple interface is:

Accepted Answer

A) capacitive coupling. 
B) to use a reference thermocouple. 
C) to use a referenceVoltage in the feedback circuit. 
D) to use a swamping resistor. 
A) capacitive coupling. 
B) to use a reference thermocouple. 
C) to use a referenceVoltage in the feedback circuit. 
D) to use a swamping resistor.

Question 12

Most isolation amplifiers use transformer coupling for isolation.

Accepted Answer

A) True 
 B)False

Question 13

A cold-junction:

Accepted Answer

A) opposes measured temperature. 
B) can have an unpredictable effect on the thermocouple effect. 
C) has aValue that depends on ambient temperature. 
D) all of the above. 
A) opposes measured temperature. 
B) can have an unpredictable effect on the thermocouple effect. 
C) has aValue that depends on ambient temperature. 
D) all of the above.

Question 14

One common method of measuring flow rate of a fluid through a pipe is the:

Accepted Answer

A) differential pressure method. 
B) dynaflow method. 
C) wein-bridge method. 
D) hall effect. 
A) differential pressure method. 
B) dynaflow method. 
C) wein-bridge method. 
D) hall effect.

Question 15

(d)
 
Figure $20 < 1$

-Refer to Figure 20-1.W hich of these circuits is known as an instrumentation amplifier?

Accepted Answer

A) (a) 
B) (b) 
C) (c) 
D) (d) 
A) (a) 
B) (b) 
C) (c) 
D) (d)

Question 16

The output of a peak detector is always:

Accepted Answer

A)  equal to the min value of the peak level received since the last reset pulse. 
B)  70.7% of input. 
C)  equal to the max value of the peak level received since the last reset pulse. 
D)  none of the above. 
A)  equal to the min value of the peak level received since the last reset pulse. 
B)  70.7% of input. 
C)  equal to the max value of the peak level received since the last reset pulse. 
D)  none of the above.

Question 17

A voltage-to-current converter is used in applicationsW here itʹs necessary to have an output load current that is controlled by ________.

Accepted Answer

A) inputVoltage 
B) input frequency 
C) output resistance 
D) input resistance 
A) inputVoltage 
B) input frequency 
C) output resistance 
D) input resistance

Question 18

Which of the following components is not used as a temperature measurement device?

Accepted Answer

A) thermocouple 
B) RTD 
C) triac 
D) All are used to measure temperature changes. 
A) thermocouple 
B) RTD 
C) triac 
D) All are used to measure temperature changes.

Question 19

-Refer to Figure 20-2.Which of these circuits contains an OTA?

Accepted Answer

A) (a) 
B) (b) 
C) (c) 
D) (d) 
A) (a) 
B) (b) 
C) (c) 
D) (d)

Question 20

A peak detectorʹs output continually changes based on the input.

Accepted Answer

A) True 
 B)False

Which of the following ADC circuits has the highest resolution?

Since the triac can be triggered to allow current to flow both directions, it can be used in:

The diode clamper circuit output is an ac signal that has a dc reference point of the peak voltage of the ac.

Voltage storage in a sample and hold amplifier is accomplished by:

A voltage-to-current converterW orks by controlling current proportional to the input Voltage.

An active limiter includes an op-ampW hich:

Conversion of analog signals to digital signals is common in most controlled industrial processes.

A voltage-to-current converter has a JFET in the feedback loop.

Which statement best describes the action of an OTA amplitude modulator?

Pressure sensors make use of an RTD for their operation.

One method of providing an accurate thermocouple interface is:

Most isolation amplifiers use transformer coupling for isolation.

A cold-junction:

One common method of measuring flow rate of a fluid through a pipe is the:

(d) Figure $20 < 1$ -Refer to Figure 20-1.W hich of these circuits is known as an instrumentation amplifier?

The output of a peak detector is always:

A voltage-to-current converter is used in applicationsW here itʹs necessary to have an output load current that is controlled by ________.

Which of the following components is not used as a temperature measurement device?

-Refer to Figure 20-2.Which of these circuits contains an OTA?

A peak detectorʹs output continually changes based on the input.

Quantities and Units

Voltage, Current, and Resistance

Ohms Law, Energy, and Power

Series Circuits

Parallel Circuits

Series-Parallel Circuits

Magnetism and Electromagnetism

Introduction to Alternating Current and Voltage

Capacitors

Rc Circuits

Inductors

Rl Circuits

Rlc Circuits and Resonance

Time Response of Reactive Circuits

Transformers

Regulators, Filters, and Op-Amps

Filters

Exam 17: Understanding Transducers, Sensors, and Conversion in Industrial Processes

Which of the following ADC circuits has the highest resolution?

Since the triac can be triggered to allow current to flow both directions, it can be used in:

The diode clamper circuit output is an ac signal that has a dc reference point of the peak voltage of the ac.

Voltage storage in a sample and hold amplifier is accomplished by:

A voltage-to-current converterW orks by controlling current proportional to the input Voltage.

An active limiter includes an op-ampW hich:

Conversion of analog signals to digital signals is common in most controlled industrial processes.

A voltage-to-current converter has a JFET in the feedback loop.

Which statement best describes the action of an OTA amplitude modulator?

Pressure sensors make use of an RTD for their operation.

One method of providing an accurate thermocouple interface is:

Most isolation amplifiers use transformer coupling for isolation.

A cold-junction:

One common method of measuring flow rate of a fluid through a pipe is the:

(d) Figure 20<120 < 120<1 -Refer to Figure 20-1.W hich of these circuits is known as an instrumentation amplifier?

The output of a peak detector is always:

A voltage-to-current converter is used in applicationsW here itʹs necessary to have an output load current that is controlled by ________.

Which of the following components is not used as a temperature measurement device?

-Refer to Figure 20-2.Which of these circuits contains an OTA?

A peak detectorʹs output continually changes based on the input.

Quantities and Units

Voltage, Current, and Resistance

Ohms Law, Energy, and Power

Series Circuits

Parallel Circuits

Series-Parallel Circuits

Magnetism and Electromagnetism

Introduction to Alternating Current and Voltage

Capacitors

Rc Circuits

Inductors

Rl Circuits

Rlc Circuits and Resonance

Time Response of Reactive Circuits

Transformers

Regulators, Filters, and Op-Amps

Filters

(d) Figure $20 < 1$ -Refer to Figure 20-1.W hich of these circuits is known as an instrumentation amplifier?