ATT WEEK 8 QUESTIONS WITH CORRECT ANSWERS.

ATT WEEK 8 QUESTIONS WITH CORRECT
ANSWERS.




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Term



The purpose of the UJT oscillator is to:



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Transform High voltage to Low
Is to switch voltage
voltage




Change DC power to AC Convert Digital signals to Analog
power signals

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2 of 29

Term



Q1 maintains a constant emitter voltage in a zener diode
regulator by:



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effectively changing its
internal emitter to adjusting its internal base to
collector resistance collector resistance




changing its internal modifying its external emitter
emitter capacitance resistance


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3 of 29

Term



Half-wave rectifiers output frequency of the ripple is:



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Twice the input frequency. The same as the input
(High efficiency) frequency. (Low efficiency)

, Half of the input frequency. A quarter of the input frequency.
(Low efficiency) (Medium efficiency)


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4 of 29

Term



Power relay is similar to a:



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Double Pole Double Throw (DPDT) Double Pole Single Throw (DPST)




Single Pole Single
Throw (SPST) Multiple contact



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5 of 29

Term



Components of optional supply



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-Input
-Rectifier Or disables excess current flow