6.
Which thermocouple is the most widely used?
a.
Platinum-rhodium
b.
Copper-constantan
c.
Iron-constantan
d.
Chromel-alumel
7.
The size, length and type of heater wire used in thermocouples are varied to
minimize loss of frequency response due to
.
a.
Power dissipated
b.
Skin effect
c.
Changes in EMF
d.
Air spacing
8.
Skin effect may be reduced by:
a.
Reducing the heater surface area
b.
Decreasing the wire gauge
c.
Increasing the applied signal frequency
d.
Increasing the heater surface area
9.
Which type thermocouple has the element junction and heater separated by a
bead?
a.
Direct
b.
Isolated
c.
Contact
d.
Noncontact
15
Previous Page
