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Assignment 3-Cont. - 14100_412
Assignment 3-Cont. - 14100_414

Fire Controlman Volume 03-Digital Data Systems
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3-23. Bipolar integrated circuits include all of the following components except which one? 1.  ECL 2.  ALS 3.  TTL 4.   TTLC 3-24. Which of the following components is NOT a part of a MOS integrated circuit? 1.  DTL 2.  TTLC 3.  CMOS 4.  HCMOS 3-25. In the determination of whether a computer’s logic level is negative or positive, what is the relationship of the two voltages? 1. 2. 3. 4. They are relative to each other They are independent of each other They intermesh with each other One is dominant; the other subordinate IN ANSWERING QUESTIONS 3-26 THROUGH 3-28, SELECT FROM THE FOLLOWING LIST THE TERM DESCRIBED IN EACH QUESTION. 1. Pulse width 2. Pulse-repetition time 3.  Pulse-duration  modulation 4.  Pulse-repetition  frequency 3-26. The time period from a repeating waveshape’s starting point until the next starting point. 3-27. The time interval between specified reference points on the leading and trailing edges of a waveform. 3-28. The number of times per second that a signal’s complete cycle occurs. GIVEN:  A  DIGITAL  WAVESHAPE  HAS A PRT OF 25 µsec AND A NEGATIVE PW OF 15 µsec. Figure  3A.—Example  statement. IN ANSWERING QUESTIONS 3-29 AND 3-30, REFER TO FIGURE 3A. 3-29. What is the value of the positive PW? 1.  6  µsec 2.   8   µsec 3.  10  µsec 4.  12  µsec 3-30. What is the value of the PRF? 1.   37   kHz 2.   40   kHz 3. 43.5 kHz 4.  47.5  kHz 3-31. What is the basic building block for combinational digital circuits? 1.  Diode 2.  Capacitor 3.  Flip-flop 4. Logic gate 3-32. What is the basic building block for sequential circuits? 1.  Resistor 2.  Conductor 3.  Flip-flop 4. Logic gate 3-33. Logic gates perform decision-making functions throughout the computer. 1.   True 2.   False 3-34. Which of the following is another term for flip-flops? 1.  Unistable  multivibrators  only 2.  Bistable  multivibrators  only 3.  Tristable  multivibrators  only 4. Multivibrators 17






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