Yagi - Uda Antenna Online Exam Quiz
Yagi - Uda Antenna GK Quiz. Question and Answers related to Yagi - Uda Antenna. MCQ (Multiple Choice Questions with answers about Yagi - Uda Antenna
A Yagi-Uda antenna is __
Options
A : Only a super directive antenna
B : Only a super gain antenna
C : Both super directive and super gain
D : Neither super directive nor super gain
Folded dipole is used than a single dipole in Yagi-Uda to obtain wider frequency range.
Options
A : TRUE
B : FALSE
C : -
D : -
In order to convert the bidirectional dipole to unidirectional system, we use ___
Options
A : Active element
B : Driven element
C : Parasitic element
D : Isolator
In which of the following bands Yagi-Uda antenna operates?
Options
A : HF-UFH
B : VLF-MF
C : LF-HF
D : UHF-EHF
What is the necessary condition for a helical antenna to operate in the axial mode?
Options
A : ?D << ?
B : ?D ? ?
C : ?D ? n?
D : ?D=0
What is the pitch angle if the separation of turns is at 2 cm and the circumference is of 4 cm?
Options
A : 26.56
B : 62.65
C : 30
D : 25.34
What is the pitch angle of the helical antenna to become a linear antenna?
Options
A : 90
B : 0
C : 45
D : 60
What is the pitch angle of the helical antenna to become a loop antenna?
Options
A : 90
B : 0
C : 45
D : 60
Which of the following modes does the condition ?D << ? is satisfied in helical antenna?
Options
A : Axial mode
B : Normal mode
C : Conical mode
D : Axial, Normal and Conical
Which of the following will add the field of the driven element and will excite the next parasitic element to increase the gain of the antenna?
Options
A : Director
B : Reflector
C : Active element
D : Boom
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