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Multiple Choice Quiz
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1

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The microstrip lines shown in the circuit above are used for
A)low-noise amplification
B)decoupling to prevent feedback
C)impedance matching and tuning
D)signal coupling
2
Small wire loop inductors and capacitors are used to provide
A)low-noise amplification
B)decoupling to prevent feedback
C)impedance matching and tuning
D)signal coupling
3
Hollow metal conducting pipes designed to carry and constrain the electromagnetic waves of a microwave signal are
A)wavetraps
B)waveguides
C)traveling wave tubes
D)microwave tubes
4
A microwave component which is used to interconnect two sections of waveguide is the
A)T section
B)curved section
C)choke joint
D)tapered wedge
5
A waveguidelike device that acts as a high-Q parallel resonant circuit is a
A)microstrip
B)klystron
C)horn
D)cavity resonator
6
A three-port microwave device used for coupling energy in only one direction around a closed loop is a
A)circulator
B)joint
C)terminator
D)cavity resonator
7
Which of the following diodes is not typically used in the microwave region?
A)point-contact
B)standard PN
C)Schottky
D)hot carrier
8
Which of the following diodes does not oscillate due to negative-resistance characteristics?
A)tunnel
B)SCR
C)Gunn
D)IMPATT
9
A thin piece of N-type gallium arsenide or indium phosphide semiconductor which forms a special resistor when voltage is applied to it is the
A)tunnel diode
B)PIN diode
C)Gunn diode
D)varactor diode
10
A microwave vacuum tube using cavity resonators to produce velocity modulation of an electron beam which produces amplification is
A)a klystron
B)magnetron
C)a cathode-ray tube
D)traveling-wave tube





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