Question 1

A triac must be triggered for each alternation for proper operation.

Accepted Answer

A) True 
 B)False  True

Question 2

Displacement transducers make use of which of the following?

Accepted Answer

A) capacitance 
B) magnetism 
C) light 
D) any of the above 
A) capacitance 
B) magnetism 
C) light 
D) any of the above D

Question 3

The aperture time for a sample-and-hold circuit refers to the change in the voltage from the
sampled value during the hold interval time.

Accepted Answer

A) True 
 B)False  False

Question 4

One method of providing an accurate thermocouple interface is:

Accepted Answer

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

Question 5

Strain gauges are used to detect minute changes in temperature.

Accepted Answer

A) True 
 B)False

Question 6

Pressure sensors make use of an RTD for their operation.

Accepted Answer

A) True 
 B)False

Question 7

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 8

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

Accepted Answer

A) True 
 B)False

Question 9

Basic analog physical parameters such as angular position, temperature, pressure, strain, and flow rate can be measured by what devices?

Accepted Answer

A) Transmissions 
B) Transducers 
C) Telemeters 
D) Transmitters 
A) Transmissions 
B) Transducers 
C) Telemeters 
D) Transmitters

Question 10

What device has the same function as a thermocouple but has a more linear output?

Accepted Answer

A) resistance temperature detectors 
B) analog temperature device 
C) capacitive temperature detector 
D) linear temperature device 
A) resistance temperature detectors 
B) analog temperature device 
C) capacitive temperature detector 
D) linear temperature device

Question 11

The typical output for a normally operating thermocouple is in the range of 1 V to 10 V.

Accepted Answer

A) True 
 B)False

Question 12

Analog-to-Digital conversion takes a specific analog quantity and produces a unique binary
number to represent that quantity.

Accepted Answer

A) True 
 B)False

Question 13

Circuits that contain features such as common-mode rejection, isolation, gain, etc. are called:

Accepted Answer

A) signal conditioners. 
B) interfaces. 
C) thermocouples. 
D) none of the above. 
A) signal conditioners. 
B) interfaces. 
C) thermocouples. 
D) none of the above.

Question 14

Which of the following is not a force-related parameter?

Accepted Answer

A) motion 
B) strain 
C) pressure 
D) velocity 
A) motion 
B) strain 
C) pressure 
D) velocity

Question 15

An input transducer converts:

Accepted Answer

A) voltage to current. 
B) a nonelectrical quantity to an electrical quantity. 
C) current to voltage. 
D) an electrical quantity to a nonelectrical quantity. 
A) voltage to current. 
B) a nonelectrical quantity to an electrical quantity. 
C) current to voltage. 
D) an electrical quantity to a nonelectrical quantity.

Question 16

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 17

The device often used as an electronic switch in many applications is the:

Accepted Answer

A) SCR. 
B) SPDT. 
C) diode. 
D) SPST. 
A) SCR. 
B) SPDT. 
C) diode. 
D) SPST.

Question 18

Sample and hold circuits:

Accepted Answer

A) increase resolution. 
B) convert analog voltages to a binary number. 
C) reduce quantization error. 
D) all of the above. 
A) increase resolution. 
B) convert analog voltages to a binary number. 
C) reduce quantization error. 
D) all of the above.

Question 19

What quantity indicates change in positions of a body or point?

Accepted Answer

A) motion coefficient 
B) displacement 
C) FIFO 
D) relative velocity 
A) motion coefficient 
B) displacement 
C) FIFO 
D) relative velocity

Question 20

RTDs and thermistors both operate on the same principle of resistive change with temperature.

Accepted Answer

A) True 
 B)False

Exam 21: Three-Phase Systems in Power Applications

A triac must be triggered for each alternation for proper operation.

Displacement transducers make use of which of the following?

The aperture time for a sample-and-hold circuit refers to the change in the voltage from the sampled value during the hold interval time.

One method of providing an accurate thermocouple interface is:

Strain gauges are used to detect minute changes in temperature.

Pressure sensors make use of an RTD for their operation.

Which of the following ADC circuits has the highest resolution?

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

Basic analog physical parameters such as angular position, temperature, pressure, strain, and flow rate can be measured by what devices?

What device has the same function as a thermocouple but has a more linear output?

The typical output for a normally operating thermocouple is in the range of 1 V to 10 V.

Analog-to-Digital conversion takes a specific analog quantity and produces a unique binary number to represent that quantity.

Circuits that contain features such as common-mode rejection, isolation, gain, etc. are called:

Which of the following is not a force-related parameter?

An input transducer converts:

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

The device often used as an electronic switch in many applications is the:

Sample and hold circuits:

What quantity indicates change in positions of a body or point?

RTDs and thermistors both operate on the same principle of resistive change with temperature.

Quantities and Units

Voltage, Current, and Resistance

Ohms Law

Energy and Power

Series Circuits

Parallel Circuits

Series-Parallel Circuits

Circuit Theorems and Conversions

Branch, Loop, and Node Analyses

Magnetism and Electromagnetism

Introduction to Alternating Current and Voltage

Capacitors

Inductors

Transformers

RC Circuits

RL Circuits

RlC Circuits and Resonance

Passive Filters

Circuit Theorems in Ac Analysis

Time Response of Reactive Circuits

Filters