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Assignment Questions - 14181_258
Assignment Questions - 14181_260

Neets Module 09-Introduction to Wave-Generators and Wave-Shaping Circuits
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27 Figure 3E.—Blocking oscillator. IN ANSWERING QUESTIONS 3-32 THROUGH 3-37, REFER TO FIGURE 3E. 3-32.   What is indicated by the dots at each end of T1 in the figure? 1.       0-degree phase shift 2. 90-degree phase shift 3.    160-degree phase shift 4.    180-degree phase shift 3-33.   Regenerative feedback to the base of Q1 is provided by what circuit component(s)? 1.  L1 only 2.  L2 only 3.  L1 and L2 only 4.  L1, L2, and C1 3-34.   What circuit action is taking place from T0 to T1? 1.  C1 is charging 2.  C1 is discharging 3.  L1 is discharging 4.  IC is decreasing 3-35.   THIS QUESTION HAS BEEN DELETED. 3-36.   During what total time period is Q1 blocked? 1.  T0 to T1 2.  T1 to T2 3.  T0 to T2 4.  T2 to T3 3-37.   In the blocking oscillator, which of the following circuit actions is the primary cause of parasitic oscillations? 1.  Collapse of the magnetic field of L1 2.  Expansion of the magnetic field of L1 3.  Inductive coupling between L1 and L2 4.  C1 discharging through Q1 3-38.   Which of the following circuit actions is a result of critical damping? 1.  Rapid transient response without overshoot 2.  Rapid transient response with overshoot 3.  Slow transient response without overshoot 4.  Slow transient response with overshoot 3-39.   What type of damping is caused by (a) high resistance and (b) low resistance? 1.  (a) Overdamping (b) Underdamping 2.  (a) Underdamping (b) Overdamping 3.  (a) Critical damping (b) Underdamping 4.  (a) Overdamping (b) Critical damping






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