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    250+ TOP MCQs on Transducers – Dynamic Characteristics and Answers 2023

    Mechatronics Multiple Choice Questions on “Dynamic Characteristics”. 1. Which error is also termed as measurement error?a) Static errorsb) Dynamic

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    250+ TOP MCQs on Transducers – Dynamic Characteristics and Answers

    Mechatronics Multiple Choice Questions on “Dynamic Characteristics”.

    1. Which error is also termed as measurement error?

    a) Static errors b) Dynamic errors

    c) Systematic errors

    d) Statical error Answer: b

    Clarification: Dynamic error is also termed as measurement error under specified conditions. Dynamic error is defined as the difference between the actual or true value with a quantity that changes with time.

    2. In retardation type measuring lag the instrument responds after an unspecified dead time lag.

    a) True b) False Answer: b

    Clarification: In retardation type measuring lag the instrument does not responds after an unspecified dead time lag. The instruments respond immediately as soon as a change in measured quantity is encountered.

    3. Active transducers do not require power source for operation.

    a) True b) False Answer: a

    Clarification: Active transducers do not require power source for operation. These types of transducers convert one form of energy to another without any external power source. Example:- Photovoltaic cells present in solar panels.

    4. Which among the following transducer is an example of active transducer?

    a) LDR (Light dependant sensor)

    b) Strain gauge

    c) Hall effect sensor

    d) Photovoltaic cell

    Answer: d

    Clarification: Photovoltaic cell is an example of active transducer. Active transducers are those types of transducers that convert one form of energy to another without any external power source. Photovoltaic cells are present in solar panels that generates electricity from sunlight.

    5. Which among the following transducer is an example of passive transducer?

    a) Chemical transducer

    b) Thermoelectric transducer

    c) Strain gauge

    d) Piezoelectric transducer

    Answer: c

    Clarification: Strain gauge is an example of passive transducer. Passive transducers are those types of transducers that bring change in passive electrical quantity usually with the help of external power source. Strain gauge is a device that changes its resistance when there is change in applied pressure.

    6. Fidelity is a static characteristic.

    a) True b) False Answer: b

    Clarification: Fidelity is not a static characteristic. It is a dynamic characteristic of an instrument. Fidelity refers to the degree of exactness of a measured value with a measured quantity that has been measured without dynamic errors.

    7. Measuring lag is a dynamic characteristic.

    a) True b) False Answer: a

    Clarification: Measuring lag is a dynamic characteristic. Sensors, transducers or any instrument do not respond immediately to the change in input. Measuring lag refers delay in response of an instrument to the change in input.

    8. In time delay type measuring lag the instrument responds immediately as soon as the input is altered.

    a) True b) False Answer: b

    Clarification: In time delay type measuring lag the instrument does not responds immediately as soon as the input is altered. In this type of time delay type measuring lag the instrument responds after an unspecified dead time lag.

    9. Which instrument can be used to measure time without any errors?

    a) Analog Clock b) Digital Clock c) Atomic clock d) Doomsday clock Answer: c

    Clarification: Atomic clock is an instrument can be used to measure time without any static errors. These are the most accurate instrument that can accurately measure time and frequency and are used as standard for different purpose such as for global navigation satellite systems.

    10. Which method can reduce dynamic error?

    a) By increasing accuracy

    b) By increasing precession

    c) By reducing sensitivity

    d) By reducing time lag

    Answer: d

    Clarification: Dynamic errorcan be reduced by reducing time lag. Accuracy, precession and sensitivity are static characteristics. Dynamic errors are caused when the instruments do not respond immediately therefore reducing time lag will reduce dynamic error.

    11. Which among the following is not a dynamic characteristic?

    a) Precession b) Measuring lag c) Dynamic error d) Fidelity Answer: a

    Clarification: Precession is not a dynamic characteristic. It comes under static characteristic. Dynamic characteristics of any sensor or transducer are determined by observing criteria’s that vary rapidly with time. Precession is the closeness of a single observation among the predefined sets of observations.

    12. Which among the following is not a dynamic characteristic?

    a) Response speed b) Accuracy

    c) Retardation type measuring lag

    d) Time delay lag Answer: b

    Clarification: Accuracy is not a dynamic characteristic. It comes under static characteristic. Static characteristics are related to steady state response. Accuracy is the observation closest to the true value.

    13. Which method can reduce dynamic error?

    a) By increasing stability

    b) By increasing tolerance

    c) By increasing resolution

    d) By increasing speed of response

    Answer: d

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    Transducers Types Questions and Answers

    This set of Mechatronics Multiple Choice Questions & Answers (MCQs) focuses on “Types of Transducers”. 1. What are transducers? a) They convert power from one form to another b) They convert work from one form to another c) They convert work to power d) They convert energy from one form to another 2. Active transducer ... Read more

    Mechatronics Questions and Answers – Types of Transducers

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    This set of Mechatronics Multiple Choice Questions & Answers (MCQs) focuses on “Types of Transducers”.

    1. What are transducers?

    a) They convert power from one form to another

    b) They convert work from one form to another

    c) They convert work to power

    d) They convert energy from one form to another

    View Answer

    2. Active transducer do not require any type of additional power source for an operation.

    a) True b) False View Answer

    3. What type of energy conversion does a piezoelectric transducer perform?

    a) It converts mechanical energy to sound energy

    b) It converts sound energy to mechanical energy

    c) It converts mechanical energy to electrical energy

    d) It converts electrical energy to mechanical energy

    View Answer

    4. Pirani Gauge is an example of which type of transducer?

    a) Pressure transducer

    b) Temperature transducer

    c) Light transducer

    d) Mechanical transducer

    View Answer

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    5. The IC LM35 is used as which type of sensor?

    a) Pressure sensor

    b) Temperature sensor

    c) Light sensor

    d) Mechanical sensor

    View Answer

    6. What is the range of frequency of the waves produced by the Ultrasonic transducer?

    a) 20 Kilohertz to several Gigahertz

    b) 1 Kilohertz to several Gigahertz

    c) 40 Kilohertz to several Megahertz

    d) less than 20 Kilohertz

    View Answer

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    7. What is the full form of LVDT with respect to displacement transducer?

    a) Linear variable differential temperature

    b) Linear variable differential transformer

    c) Liquid visible differential transformer

    d) Liquified visible differential transformer

    View Answer

    8. What is the effect on properties of LDR when light falls on it?

    a) Its resistance remains same

    b) Its resistance changes

    c) Its capacitance changes

    d) Its inductance changes

    View Answer advertisement

    9. What is measured by a hall effect transducer?

    a) Electric flux b) Electric Field c) Magnetic field d) Temperature View Answer

    10. In which state of chemical substances does a chemical sensing device work?

    a) Solid b) Liquid c) Vapour d) Plasma View Answer advertisement

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