Older heat detectors lack what feature that makes it difficult to track down the cause of an alarm?
A. color-coding of their activation thresholds
B. wide spaced combs
C. visual triggers that tell which device was activated
D. narrow spaced combs
Answer: C. visual triggers that tell which device was activated
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A ____ drive is a motor controller that controls the primary supply frequency of the electrical.
a. variable-frequency b. standard-frequency c. voltage d. electricity
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If the time for one cycle is 0.1 second, the frequency is _____
a. 0.1 Hz b. 0.5 Hz c. 1 Hz d. 10 Hz
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The number of possible outputs obtained from a 4-input look-up table is
A) 12. B) 16. C) 8. D) 4.
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Two events than can cause the processor to deviate from its normal operation are exceptions and interrupts
Indicate whether the statement is true or false
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