6-32. What digital computer section of the HUD set signal data processor distributes the clock pulses? 1. Control logic 2. Sequence control 3. Symbol generator 4. Processor counter 6-33. The symbol generator operates in three major modes. Each mode is dependent on the other, and all are completed simultaneously. 1. True 2. False 6-34. During the sixth and seventh operations of the line mode, what action occurs with respect to the X and Y data? 1. X data is shifted 2. Y data is shifted 3. The X and Y channel rate registers are shifted by the symbol generator 4. The BITE circuits check all data in the X and Y channel rate registers for correctness 6-35. The symbol generator samples the HUD busy signal for what reason? 1. To decode information 2. To generate a self-test mode 3. To transfer data to the HUD immediately 4. To transfer data to the HUD when it is ready 6-36. When the circle mode of operation in the symbol generator is being used, the circle is drawn (a) in what direction and (b) begins at what point on the CRT? 1. (a) Clockwise (b) top 2. (a) Clockwise (b) bottom 3. (a) Counterclockwise (b) top 4. (a) Counterclockwise (b) bottom 6-37. What is the purpose of the bright-up pulse delay in the circle mode of the signal generator? 1. To compensate for the slow response time of the deflection circuits in the HUD 2. To compensate for the fast response time of the deflection circuits in the HUD 3. To turn off the symbol generator 4. To turn on the signal generator 6-38. What voltage is applied to the CRT anode of the HUD? 1. 5,000 volts 2. 10,000 volts 3. 15,000 volts 4. 20,000 volts 6-39. The electrical power used for the operation of the standby reticle of the HUD is obtained from what source? 1. The high-voltage power supply 2. The low-voltage power supply 3. Outside of the HUD 4. The HUD battery 6-40. In the optical module of the HUD, what is the purpose of the autobrilliance sensor? 1. To detect ambient light changes 2. To adjust output voltage level to the sensor 3. To amplify manual brightness input signals from the control panel 4. To detect ambient light changes and amplify output voltage level to the sensor 6-41. At what rate are the symbols drawn on the CRT of the HUD video module? 1. 15 times per second 2. 25 times per second 3. 50 times per second 4. 100 times per second 41