Multiple Choice directions: Circle the letter of the answers that best answer the question. 13. When using microwave tubes as amplifiers, what is used as bandpass filters? a. Transistors b. Oscillator c. All of the above d. Power tubes 14. The microstrip lines used to achieve maximum power transfer are intended for a. Signal coupling b. Decoupling to prevent feedback c. Low-noise amplification d. Impedance matching and tuning 15. A diode that when reverse biased will momentarily and will abruptly turn off. a. Varactor diode b. IMPATT c. Step recovery diodes d. PIN diodes
Multiple Choice directions: Circle the letter of the answers that best answer the question. 13. When using microwave tubes as amplifiers, what is used as bandpass filters? a. Transistors b. Oscillator c. All of the above d. Power tubes 14. The microstrip lines used to achieve maximum power transfer are intended for a. Signal coupling b. Decoupling to prevent feedback c. Low-noise amplification d. Impedance matching and tuning 15. A diode that when reverse biased will momentarily and will abruptly turn off. a. Varactor diode b. IMPATT c. Step recovery diodes d. PIN diodes
Chapter32: Standby Power Systems
Section: Chapter Questions
Problem 7R: Briefly explain the function of a transfer switch. _____
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Multiple Choice directions: Circle the letter of the answers that best answer the question.
13. When using microwave tubes as amplifiers, what is used as bandpass filters?
a. Transistors
b. Oscillator
c. All of the above
d. Power tubes
14. The microstrip lines used to achieve maximum power transfer are intended for
a. Signal coupling
b. Decoupling to prevent feedback
c. Low-noise amplification
d. Impedance matching and tuning
15. A diode that when reverse biased will momentarily and will abruptly turn off.
a. Varactor diode
b. IMPATT
c. Step recovery diodes
d. PIN diodes
16. A microwave transmission line used to minimize noise and crosstalks.
a. Stripline
b. Hard line cable
c. Waveguide
d. Microstrip
17. The major difference between a low frequency transistors and microwave types is/are.
a. B & C
b. Packaging
c. Material
d. Internal geometry
18. Which of the following band belongs to the millimeter waves
a. C
b. Ku
c. U
d. L
19. Overcrowding in the frequency spectrum is prevalent in which area of the spectrum?
a. EHF
b. UHF
c. SHF
d. VHF
20. What materials is used as the ground plane of the microstrip?
a. Teflon
b. GaAs
c. Fiberglass
d. Copper
21. Which of the following is not a microwave tube?
a. Klystron
b. TWT
c. Magnetron
d. Cathode- Ray tube
22. In microwaves, signal is extracted using
a. Cavity resonator
b. Circulators
c. Probes
d. Loops
23. A common application for magnetron is in:
a. Satellites
b. Radar
c. TV sets
d. Two-way radio
24. The main advantage of TWT over a Klystron for microwave amplification is:
a. High power
b. Wider bandwidth
c. Smaller size
d. Lower cost
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