MCQOPTIONS

Explore topic-wise MCQs in Avionics.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Avionics knowledge and support exam preparation. Choose a topic below to get started.

1.	WHAT_IS_THE_IMPEDANCE_OF_THE_FOLDED_DIPOLE_ANTENNA??$
A.	50‚âà√≠¬¨¬©
B.	100‚âà√≠¬¨¬©
C.	300‚âà√≠¬¨¬©
D.	20‚âà√≠¬¨¬©
Answer» D. 20‚âà√≠¬¨¬©

2.	WHAT_IS_THE_RADIATION_PATTERN_OF_AN_ISOTROPIC_RADIATOR??$
A.	Doughnut
B.	Sphere
C.	Hemisphere
D.	Circular
Answer» C. Hemisphere

3.	Which of the following antennas produce a vertical radiation pattern?$
A.	Dipole antenna
B.	Yagi antenna
C.	Marconi antenna
D.	Hertz antenna
Answer» D. Hertz antenna

4.	What is the power radiated by the antenna with gain called as?
A.	Critical power
B.	Transverse power
C.	Effective radiated power
D.	Transmitted power
Answer» D. Transmitted power

5.	What does the beam width of an antenna tell us?
A.	Signal strength
B.	Signal power
C.	Directivity
D.	Degradation
Answer» D. Degradation

6.	What is the beam width for a half wave dipole antenna?
A.	90¬¨¬®‚Äö√†√ª
B.	180¬¨¬®‚Äö√†√ª
C.	50¬¨¬®‚Äö√†√ª
D.	250¬¨¬®‚Äö√†√ª
Answer» B. 180¬¨¬®‚Äö√†√ª

7.	The radiation pattern of a half-wave dipole has the shape of a ______
A.	Doughnut
B.	Sphere
C.	Hemisphere
D.	Circular
Answer» B. Sphere

8.	The type of dipole antenna that has a higher band width is called as?
A.	Conical antenna
B.	Yagi antenna
C.	Helical antenna
D.	Marconi antenna
Answer» B. Yagi antenna

9.	What happens when the radiation resistance of the antenna matches the characteristic impedance of the transmission line?
A.	No transmission occurs
B.	No reception occurs
C.	SWR is maximum
D.	SWR is minimum
Answer» E.

10.	The impedance at the center of the antenna is known as?
A.	Characteristic impedance
B.	Radiation resistance
C.	Transmission impedance
D.	Recovery resistance
Answer» C. Transmission impedance

11.	A dipole antenna is also called as?
A.	Marconi antenna
B.	Yagi antenna
C.	Bidirectional antenna
D.	Hertz antenna
Answer» E.