Download Siemens DTU3005-B Specifications

Review 2
1.
____________ is a measurement of the number of
alternations between positive and negative peak values
in a measured amount of time.
a. voltage
b. current
c. frequency
d. power
2)
The peak-to-peak value of an AC voltage with a peak
voltage of 600 volts is ____________ .
3)
The instantaneous voltage measured at 120° of a sine
wave with a peak voltage of 650 volts is ___________ .
4)
The most common method of expressing the value of
AC voltage and current is ____________ value.
a. average
b. effective
c. peak
d. instantaneous
5)
A pure sinusoidal waveform has a crest factor of
____________ .
6)
Computer equipment is most vulnerable during a Type I
overvoltage disturbance and a Type ____________
undervoltage disturbance.
a. I
b. II
c. III
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