36.
A heated wire anemometer:
a. Requires the use of a timing device and must be frequently calibrated.
b. Usually has readings taken for one-minute periods, thus giving air velocity in
linear fpm.
c.
Usually is comprised of a single probe connected to an operating unit housing
circuitry, meter, batteries, and so forth, and are about the size of a cigar box.
d. Depends upon the change in resistance of a wire with a change in
temperature.
37.
Which anemometer can have its delicate wires damaged in the probe if heavy
loadings or corrosive materials come in contact with it?
a. Heated wire.
b. Rotating vane.
c.
Swinging vane.
d. Heating thermocouple.
38.
What basic instrument is used to measure air velocity?
a. Anemometer.
b. Rotating vane.
c.
Swinging vane.
d. Heating thermocouple.
MD0165
4-34
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