Explore topic-wise MCQs in Antennas.

This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Antennas knowledge and support exam preparation. Choose a topic below to get started.

1.

As the order of the polynomial increases, the slope becomes steeper.

A. True
B. False
Answer» B. False
2.

All the nulls occur at (-1, 1) in the Chebyshev polynomial.

A. True
B. False
Answer» C.
3.

All the polynomials of the order m pass through the point ____________

A. (1, 1)
B. (0, 0)
C. (0, 1)
D. (-1, 0)
Answer» B. (0, 0)
4.

Which of the following properties of Chebyshev polynomial is false?

A. The minor lobes have unequal amplitudes
B. The polynomial T<sub>m</sub>(x) is symmetric for m = even
C. The polynomial T<sub>m</sub>(x) crosses the x axis m times between -1 and 1
D. Minor lobes exists for |x| &lt; 1
Answer» B. The polynomial T<sub>m</sub>(x) is symmetric for m = even
5.

Which of the following statements regarding Chebyshev polynomial is true?

A. The polynomial T<sub>m</sub>(x) is symmetric for m = even
B. The polynomial T<sub>m</sub>(x) is symmetric for m = odd
C. The polynomial T<sub>m</sub>(x) is anti-symmetric for m = even
D. The polynomial T<sub>m</sub>(x) is symmetric for m = even and odd
Answer» B. The polynomial T<sub>m</sub>(x) is symmetric for m = odd
6.

The condition for the existence of the main lobe according to the Chebyshev is _________

A. |x| &gt; 1
B. |x| &lt; 1
C. |x| = 0
D. 2|x| &gt; 1
Answer» B. |x| &lt; 1
7.

What is the possible level from the following for the minor lobe when the main beam level is at 50db and SLL at 10 db according to Chebyshev?

A. 40dB
B. 45dB
C. 50dB
D. 80dB
Answer» B. 45dB
8.

How many times the polynomial T5(x) crosses the x-axis between [-1, 1]?

A. 5
B. 4
C. 2
D. 6
Answer» B. 4
9.

Which of the following statement is true about the Chebyshev function Tm(x)?

A. It is a continuously increasing function after x=1
B. It is a continuously decreasing function after x=1
C. It is a continuously increasing function after x=0
D. It is a continuously decreasing function after x=0
Answer» B. It is a continuously decreasing function after x=1