Deck 37: Methods of Sensing Temperature

Question 1

Thermistors can be operated in temperatures that range from about -100 to 300 degrees ____.

A) Kelvin
B) Fahrenheit
C) Rankine
D) Centigrade

Answer 1

Fahrenheit

Question 2

Thermistors are thermally sensitive semiconductor devices.

Answer 2

True

Question 3

The amount of metal expansion is proportional to two things: the type of metal used and the ____.

A) specific heat
B) density of the metal
C) ambient temperature
D) amount of heat

Answer 3

amount of heat

Question 4

The diode is becoming a very popular device for measuring temperature because it is accurate and ____.

A) linear
B) exponential
C) quadratic
D) optical

Question 5

One very common device that operates on the principle of expansion and contraction of metal is the line voltage thermostat.

Question 6

The amount of voltage produced by a thermocouple is small.

Question 7

The shorter the bimetal strip is, the more movement that will be produced by a change of temperature.

Question 8

A very common and reliable method for sensing temperature is by the evaporation of metal.

Question 9

The thermocouple is made by joining two dissimilar ____ together at one end.

A) alloys
B) metalloids
C) metals
D) nonmetals

Question 10

When a bellows is made to operate a set of contacts, it is generally referred to as a ____.

A) bellows-type thermostat
B) PN junction
C) thermopile
D) resistance temperature detector