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Figure 3A.—Square wave.
IN ANSWERING QUESTIONS 3-6
THROUGH 3-10, SELECT THE
CORRESPONDING LETTER IN FIGURE 3A
WHICH DESCRIBES THE PORTION OF THE
WAVEFORM IN EACH OF THE
FOLLOWING QUESTIONS.
3-6. The leading edge of the pulse.
1. C
2. D
3. E
4. F
3-7. The trailing edge of the pulse.
1. A
2. B
3. C
4. D
3-8. The positive alternation.
1. C
2. D
3. E
4. F
3-9. The amplitude of the pulse.
1. A
2. B
3. C
4. D
3-10. The pulse-repetition time of the pulse.
1. C
2. D
3. E
4. F
3-11. What type of waveform is used to furnish
a linear rise in current for
electromagnetic cathode ray tubes?
1. Square wave
2. Sawtooth wave
3. Trapezoidal wave
4. Rectangular wave
3-12. Which of the following multivibrators
must have a signal applied (triggered) to
change states?
1. Astable
2. Bistable
3. Monostable
4. Both 2 and 3 above
3-13. Which of the following multivibrators is
also called a free running multivibrator?
1. Astable
2. Bistable
3. Monostable
4. Both 2 and 3 above
3-14. Which of the following waveforms could
be the output of the astable
multivibrator?
1. Sine wave
2. Sawtooth wave
3. Rectangular wave
4. Trapezoidal wave
