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This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Microwave Engineering knowledge and support exam preparation. Choose a topic below to get started.
1. |
In aperture coupling, a small aperture in the transverse wall of the waveguide acts as: |
A. | shunt inductance |
B. | shunt capacitance |
C. | series inductance |
D. | series capacitance |
Answer» B. shunt capacitance | |
2. |
When coupling coefficient is 1, the resonator is ________ to the feed line. |
A. | under coupled |
B. | over coupled |
C. | critically coupled |
D. | none of the mentioned |
Answer» D. none of the mentioned | |
3. |
For practical applications cavity resonators can be modified as per the requirement of the application where it is used. |
A. | true |
B. | false |
Answer» B. false | |
4. |
IN_APERTURE_COUPLING,_A_SMALL_APERTURE_IN_THE_TRANSVERSE_WALL_OF_THE_WAVEGUIDE_ACTS_AS:?$ |
A. | shunt inductance |
B. | shunt capacitance |
C. | series inductance |
D. | series capacitance |
Answer» B. shunt capacitance | |
5. |
When coupling coefficient is 1, the resonator is ________ to the feed line? |
A. | under coupled |
B. | over coupled |
C. | critically coupled |
D. | none of the mentioned |
Answer» D. none of the mentioned | |
6. |
For practical applications cavity resonators can be modified as per the requirement of the application where it is used? |
A. | true |
B. | false |
Answer» B. false | |
7. |
Direct measurement of the unloaded Q of a resonator is not possible. |
A. | true |
B. | false |
Answer» B. false | |
8. |
When the coupling coefficient is lesser than one, the resonator is over coupled to the feed line. |
A. | true |
B. | false |
Answer» C. | |
9. |
Coupling coefficient Q can be defined as the ratio of unloaded Q to external Q. |
A. | true |
B. | false |
Answer» B. false | |
10. |
When impedance matching is done between a resonator and a feed line, the condition for impedance matching is: |
A. | R=Z<sub>0</sub> |
B. | R=Z<sub>0</sub>/2 |
C. | R=2Z<sub>0</sub> |
D. | R=‚àöZ<sub>0</sub> |
Answer» B. R=Z<sub>0</sub>/2 | |
11. |
To obtain maximum power transfer between a resonator and feed line, the resonator should be matched to the load at: |
A. | resonant frequency |
B. | cutoff frequency |
C. | zero frequency |
D. | none of the mentioned |
Answer» B. cutoff frequency | |
12. |
A measure of the level of coupling between a resonator and a feed is given by: |
A. | coupling coefficient |
B. | power transfer coefficient |
C. | voltage coefficient |
D. | reflection coefficient |
Answer» B. power transfer coefficient | |
13. |
The level of coupling required between a resonator and its attached circuitry is a standard and independent of the application where coupling is required. |
A. | true |
B. | false |
Answer» C. | |