LESSON 1
PRACTICE EXERCISE
1.
What is the output of a thermocouple?
a.
RMS
b.
Peak
c.
Average
d.
DC
2.
Select the incorrect statement.
a.
The heat difference between the reference junctions is determined by the
average value of the input.
b.
The current available from a thermocouple is small
c.
A thermocouple develops EMF when there is a temperature difference between
the two junctions
d.
The measuring junction is also referred to as the hot junction
3.
Which thermocouple phenomenon involves the rejection of heat at the measuring
junction?
a.
Law of Intermediate Metals
b.
Seebeck Effect
c.
Thompson Effect
d.
Peltier Effect
4.
What heating effect occurs in solid, single material conductors
having
a
temperature gradient in the direction of the current flow?
a.
Thompson heating
b.
Peltier heating
c.
Conductor heating
d.
Reversal heating
5.
Which is not a requirement for thermocouple metal composition?
a.
An increasing relation of EMF to temperature
b.
Resistance to corrosion
c.
A low coefficient of thermal EMF to temperature
d.
Freedom from phenomena resulting in discontinuities in the temperature-EMF
relation
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