Q101
Open questionDirectional couplers are mainly used
Select an option to see the answer and solution.
ECE · all questionsMicrowave Communication
Microwave Communication
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
179
Questions
6/9
Page
Pick an option on a question to see the right answer and solution.
Q102
Open questionMultiple collectors are used in Traveling Wave Tube (TWT) to:
Select an option to see the answer and solution.
Q103
Open questionTravelling wave tube is suitable for
Select an option to see the answer and solution.
Q104
Open questionWhich of the following devices cannot be used as microwave oscillator:
Select an option to see the answer and solution.
Q105
Open questionThe waveguide (a = 1.5 cm, b = 1 cm) is loaded with dielectric (εr = 4). Which one of the following is correct?
The 8 GHz signal will
The 8 GHz signal will
Select an option to see the answer and solution.
Q106
Open questionWhat is the critical frequency for reflection at vertical incidence if the maximum value of electron density is 1.24 × 106 cm-3?
Select an option to see the answer and solution.
Q107
Open questionTravelling wave tube (TWT) is basically
Select an option to see the answer and solution.
Q108
Open questionTM01 mode in rectangular perfect metallic waveguide is:
Select an option to see the answer and solution.
Q109
Open questionKlystron operation is based on the principle of
Select an option to see the answer and solution.
Q110
Open questionThe transmit time in the repeller space of a reflex klystron must be (n + 3/4) cycles to ensure that,
Select an option to see the answer and solution.
Q111
Open questionElectron bunching in a reflex klystron occurs in the-
Select an option to see the answer and solution.
Q112
Open questionThe transmission loss for a 3 GHz, microwave system over a certain distance is 130 dB. If the frequency is now doubled, then the transmission loss will be
Select an option to see the answer and solution.
Q113
Open questionThe modes in a reflex klystron
Select an option to see the answer and solution.
Q114
Open questionA BWO is based on the
Select an option to see the answer and solution.
Q115
Open questionUsing a travelling wave structure in a MASER, we can
Select an option to see the answer and solution.
Q116
Open questionMicro-strips are similar to which of the following?
Select an option to see the answer and solution.
Q117
Open questionThe ratio of transverse electric field to transverse magnetic field is called as
Select an option to see the answer and solution.
Q118
Open questionWhich of these has highly doped p and n region?
Select an option to see the answer and solution.
Q119
Open questionTo prevent oscillations in the TWT which one of the following is resorted to?
Select an option to see the answer and solution.
Q120
Open questionThe transferred electron mechanism is found in:
Select an option to see the answer and solution.