8-A-08: Components-2
8-8A1:
The basic frequency determining element in a Gunn oscillator is:
The resonant cavity.
The power supply voltage.
The type of semiconductor used.
The loading of the oscillator by the mixer.
8-8A2:
Which of the following is not a method of analog-to-digital conversion?
Dynamic-range conversion.
Delta-sigma conversion.
Switched-capacitor conversion.
Dual-slope integration.
8-8A3:
When comparing TTL and CMOS logic families, which of the following is true:
At higher operating frequencies, CMOS circuits consume almost as much power as TTL circuits.
CMOS logic requires a supply voltage of 5 volts ±20%, whereas TTL logic requires 5 volts ±5%.
Unused inputs should be tied high or low as necessary especially in the CMOS family.
When a CMOS input is held low, it sources current into whatever it drives.
8-8A4:
The primary operating frequency of a reflex klystron is controlled by the:
Dimensions of the resonant cavity.
Level of voltage on the control grid.
Voltage applied to the cavity grids.
Voltage applied to the repeller plate.
8-8A5:
A Gunn diode oscillator takes advantage of what effect?
Negative resistance and bulk-effect.
Negative resistance.
Avalanche transit time.
Bulk-effect.
8-8A6:
Fine adjustments of a reflex klystron are accomplished by:
Varying the repeller voltage.
Adjusting the flexible wall of the cavity.
Adjusting the AFC control system.
Varying the cavity grid potential.
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