Es&t018
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This QUIZ is made or by product of my continuous research & study about Electronics Engineering to help the Electronics Engineer/Technician Aspirants in passing the Board Examinations.
- 1.The microwave frequency range is considered to start at:
- A.
100 MHz
- B.
1 GHz
- C.
10 GHz
- D.
100 GHz
- 2.The UHF range is:
- A.
Below the microwave range
- B.
Inside the microwave range
- C.
Above the microwave range
- D.
Same as the microwave range
- 3.The dominant mode of a waveguide depends on:
- A.
The shape of the waveguide
- B.
The power level of the signal
- C.
The point of signal injection
- D.
None of the above
- 4.The dominant mode of a rectangular waveguide is:
- A.
TE01
- B.
TM01
- C.
TE10
- D.
TM10
- 5.The dominant mode of a circular waveguide is:
- A.
TE 01
- B.
TM 01
- C.
TE 11
- D.
TM11
- 6.Circular waveguides use TM 01 mode because:
- A.
It is dominant
- B.
Of its circular symmetry
- C.
It is the only mode possible
- D.
It is more efficient
- 7.The characteristic impedance of a waveguide:
- A.
Is fixed
- B.
Depends on the frequency it carries
- C.
Depends on the longer dimension of its cross section
- D.
Both b and c
- 8.Power can be coupled into or out of a waveguide:
- A.
With a magnetic field probe
- B.
With an electric field probe
- C.
Through a hole in the waveguide
- D.
All of the above
- 9.Directional couplers for waveguides are characterized by:
- A.
Their insertion loss
- B.
Their coupling specification
- C.
Their directivity
- D.
All of the above
- 10.Striplines and microstrips are used to:
- A.
Couple sections of waveguide
- B.
Couple waveguides to antennas
- C.
Couple components on a circuit board
- D.
None of the above
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