Working of LPDA MCQ’s

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This set of Antenna Multiple Choice Questions & Answers (MCQs) focuses on “Working of LPDA”.

1. Which of the following is the condition for the Log periodic antenna to be inactive stop region?
a) L=λ2
b) L>λ2
c) L<λ2
d) L=λ4

2. Which of the following is the condition for the Log periodic antenna to be inactive transmission line region?
a) L=λ2
b) L>λ2
c) L<λ2
d) L=λ4

3. Which of the following is the condition for the Log periodic antenna to be in active region?
a) L=λ2
b) L>λ2
c) L<λ2
d) L=λ4

4. The dipoles in the inactive transmission region offer ________ impedance.
a) Capacitive
b) Resistive
c) Inductive
d) Characteristic

5. The dipoles in the inactive stop region offer ________ impedance.
a) Capacitive
b) Resistive
c) Inductive
d) Characteristic

6. In which of the following region of the log periodic array, maximum radiation takes place?
a) Inactive transmission line region
b) Active region
c) Inactive stop region
d) Reflective region

7. The dipoles in the active region offer ________ impedance.
a) Capacitive
b) Resistive
c) Inductive
d) Characteristic

8. In which of the following region in LPDA, the current leads the base voltage?
a) Inactive transmission line region
b) Active region
c) Inactive stop region
d) Reflective region

9. Which of the following region is also known as reflective region in LPDA?
a) Inactive transmission line region
b) Active region
c) Inactive stop region
d) Log periodic array

10. Reflective region in LPDA offers the inductive impedance.
a) True
b) False

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