Practice Electromagnetic Field Theory Multiple Choice Questions with Answers Quiz-3

Q.1.

Tropospheric scatter is used with frequencies in the

HF
VHF
UHF
VLF

Q.2.

A Yagi antenna has a driven antenna

Only
With a reflector
With one or more directors
With a reflector and one or more directors

Q.3.

Which of the following is multiband HF receiving antenna?

Square loop
Log-periodic
Conical horn
Folded dipole

Q.4.

An open wire transmission line having a characteristic impedance of 600 ohms is terminated by a resistive load of 900 O. The standing wave ratio will be

1.5
2.5
3.5
4.5

Q.5.

The radiation pattern of Hertzian dipole in the plane perpendicular to dipole is a

Null
Circle
Figure of eight
None of the above

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