M

Mr. Dubey • 52.30K Points
Coach 

Q. Which of the following is false regarding Antenna array?

(A) directivity increases
(B) directivity decreases
(C) beam width decreases
(D) gain increases
Correct : Option (B)

Explanation: 
 a single antenna provides low gain and less directivity. to increase the directivity antenna arrays are used. with the antenna arrays, directivity and gain increases and beam width decreases.

Share

Discusssion

Login to discuss.

Be the first to start discuss.

Related MCQs

Q. For a resistive frequency multiplier of multiplication factor 2, the maximum theoretical conversion efficiency is:

Q. The terminal voltage of a D.C. shunt generator drops on load because of all of the following reasons except

Q. In jaw crushers a motor has to often start against....... load

Q. Consider the function F (s)= 5/s(s2+3s+2), the initial value of f(t) is:

Q. In D.C. generators, the brushes on commutator remain in contact with conductors which

Q. The conduction loss versus device current characteristic of a power MOSFET is best approximated by a ________

Q. An exciter for a turbo generator is a

Q. can be extended to systems which are time-varying ?

Q. _______________ is a sampling pattern which is repeated periodically

Q. The type of dipole antenna that has a higher band width is called as?