Signals And Switches

If the input voltage on D₁ in the given figure is changed to 0 V, what is the output voltage V_out?

A:

–5 V

B:

0 V

C:

+5 V

D:

+4.3 V

Answer: B

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What is the output voltage V_out for the given circuit if the input voltage changes to 0 V?

A:

+12 V

B:

+15 V

C:

+3 V

D:

0 V

Answer: A

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TTL logic chips must have connections to V_cc and ground, even if all inputs and outputs are properly used and tied to valid signals.

A:

True

B:

False

C:

D:

Answer: A

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What is the period of a clock waveform that has a frequency of 15.4 kHz?

A:

649

s

B:

6.49

s

C:

64.9

s

D:

0.649

s

Answer: C

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Serial communication can be sped up by:

A:

using silver or gold conductors instead of copper

B:

using high-speed clock signals

C:

adjusting the duty cycle of the binary information

D:

using silver or gold conductors instead of copper and high-speed clock signals

Answer: B

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Questions for: Signals And Switches