Free Printable transducer

1.

Define transducer

a)

is a device that measure the difference in pressure between the two pressure ports

b)

is a device that converts one form of energy to other form

c)

is the ratio of the output of the transmitter to the input signal

2.

Which below correctly define the type of transducer

a)

Analog transducer : sense of non electrical variables, ex: limit switch

b)

Discrete transducer : sense of electrical & non electrical variables: ex: thermocouple

c)

Active transducer : do not need external power

3.

Which criteria below NOT IMPORTANT to be considered when selecting transducers:

a)

Sensitivity of transducer

b)

Weight of transducer

c)

Colour of transducer

d)

Environmental compatibility

4.

Which below include in Temperature transducer:

a)

Thermocouple

b)

Ultrasonic

c)

Potentiometer

d)

Strain Gauge

5.

Define thermocouple as a temperature transducer?

a)

When two wires with similar electrical properties are joined at both ends and one junction is made hot and the other cold, a small electric current is produced proportional to the difference of the temperature

b)

When two wires with similar electrical properties are joined at both ends and one junction is made hot and the other cold, a small electric current is produced proportional to the difference of the pressure

c)

When two wires with dissimilar electrical properties are joined at both ends and one junction is made hot and the other cold, a small electric current is produced proportional to the difference of the temperature

d)

When two wires with dissimilar electrical properties are joined at both ends and one junction is made hot and the other cold, a small electric current is produced proportional to the difference of the pressure

6.

Which below advantages of thermocouple :

a)

Self powered

b)

Inexpensive

c)

Rugged

d)

All answers stated above

7.

Electrical transducers are _______

a)

small and non-portable

b)

large and non-portable

c)

small and compact

d)

large and portable

8.

Mechanical transducers cause ________

a)

Power loss

b)

Hysteresis loss

c)

Eddy current loss

d)

Frictional loss

9.

Strain is defined as ________

a)

Change in height per unit height

b)

Change in weight per unit weight

c)

Change in length per unit length

d)

Change in diameter per unit diameter

10.

Stress is defined as _________

a)

Diameter per unit area

b)

Length per unit area

c)

Weight per unit area

d)

Force per unit area

11.

Load cell is used for the measurement of _______

a)

Area

b)

Force

c)

Mass

d)

Length

transducer

Total questions: 11

Worksheet time: 6mins

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