Microwave Communication MCQ Questions & Answers | ECE

A. The mode of operation

B. Its electrical dimensions

C. Its physical dimensions

D. The capacitor which tunes it

A. Delayed spreading

B. Rayleigh fading

C. Random Doppler shift

D. Slow fading

A. Is equivalent to an LC resonant circuit

B. In a reflect klystron has its output taken from the reflector plate

C. Produces a frequency which is independent of the cavity size.

D. Has a low Q factor for narrow operation.

A. Isolator

B. Magnetron

C. Simplex

D. Circulator

A. At the cathode end of the helix

B. At the collector

C. At the collector end of the helix

D. At the control grid of the electron gun

A. To accelerate the electron

B. To velocity modulate the electron beam

C. To keep the electrons from spreading out

D. To slow down the signal on the helix

A. Is capable of generating continuous microwave power of the order of kilowatt

B. Generates frequencies which are below 100 MHz

C. Operates over a positive resistance characteristic

D. Depends on the formation of charge domain

A. And FET

B. A tunnel diode

C. A silicon crystal

D. A Rochelle salts crystal

A. Third

B. Fourth

C. Fifth

D. Sixth

A. Oscillation will cease

B. Output power would increase

C. The frequency will decrease

D. Bunching would occur earlier in time