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Quiz 1 (Introduction to Mechatronics )

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

_____________ _ _ _ _ _ _ _ is the difference between the result of measurement and the actual value of the quantity being measured.

a)

Range

b)

Span

c)

Error

d)

  Sensitivity

2.

_____________ is the extent to which the value indicated by a measurement system might be wrong.

a)

Range

b)

Span

c)

Error

d)

Accuracy

3.

______________ is the relationship indicating how much output there is per unit input.

a)

Sensitivity

b)

Accuracy

c)

Error

d)

Range

4.

Transducers can give different outputs from the same value of a quantity being measured according to whether that value has been reached by a continuously increasing or decreasing change. This effect is called ________________.

a)

Sensitivity

b)

Hysteresis

c)

Non-linearity

d)

Repeatability

5.

For many transducers, a ____________ relationship between the input and output is assumed over the working range.

a)

Linear

b)

Non-linear

c)

Quadratic

d)

Cubic

6.

_____________ is the ability to give the same output for repeated applications of the same input value.

a)

Hysteresis

b)

Linearity

c)

Repeatability

d)

Stability

7.

The __________________ of a transducer is its ability to give the same output when used to measure a constant input over some time.

a)

Hysteresis

b)

Linearity

c)

Repeatability

d)

Stability

8.

For a transducer, the range of input values for which there is no output is known as ______________.

a)

Span

b)

Hysteresis error

c)

Non-linearity error

d)

Dead band

9.

For a transducer, the smallest change in the input value that will produce an observable change in the output is known as _______________.

a)

Hysteresis

b)

Repeatability

c)

Resolution

d)

Stability

10.

When a sensor giving _____________ output is interfaced with an electronics circuit, it is necessary to know the output impedance of the transducer or sensor.

a)

A mechanical

b)

An electrical

c)

A chemical

d)

A heat

11.

_________ _ _ _ _ _ _ is the time that elapses after a constant input is applied to the transducer up to the point at which the transducer gives an output corresponding to some specified percentage.

a)

Response time

b)

Time constant

c)

Settling time

d)

Rise time

12.

For a transducer, the time constant is the _________ % of response time.

a)

5

b)

63.2

c)

95

d)

100

13.

___________ _ _ _ _ _ _ _ is the time taken for the output to rise to some specified percentage of the steady-state output.

a)

Response time

b)

Time constant

c)

Rise time

d)

Settling time

14.

____________ sensors are concerned with the measurement of the amount by which some object has been moved.

a)

Displacement

b)

Position

c)

Proximity

d)

Acceleration

15.

_____________ is a metal wire, metal foil strip, or a strip of semiconductor material that is wafer-like and can be stuck onto surfaces like a postage stamp.

a)

Potentiometer

b)

Strain-gauge

c)

Accelerometer

d)

Optical Encoder

16.

For a strain-gauge element, the last term of the following equation is known as:  

a)

Piezo-electric effect

b)

Piezo-resistive effect

c)

Piezo-capacitive effect

d)

Piezo-inductive effect

17.

Which of the following techniques could be used to measure displacement by one parallel plate capacitor?

a)

By changing the gap between the two plates.

b)

By changing the area of overlap of the plates.

c)

By changing the relative permittivity of the gap between the two plates.

d)

All of the above techniques.

18.

The linearly variable differential transformer consists of _________ coils symmetrically spaced along an insulated tube.

a)

One

b)

Two

c)

Three

d)

Four

19.

In an LVDT, the secondary coils are connected in ___________ in such a way that their outputs oppose each other.

a)

Series

b)

Parallel

c)

Both series and Parallel

d)

Not connected

20.

The eddy current ________ the magnetic field responsible for their production.

a)

Amplifies

b)

Attenuates

c)

Distorts

d)

Compares