Microwave Crossed Field Tubes – 1 – 1

1. A magnetron is used only as a/an :

(a) amplifier
(b) oscillator
(c) mixer
(d) 
frequency multiplier

ANSWER

EXPLANATION

2. A common application for magnetron is in :

(a) radar
(b) satellites
(c) two-way radio
(d) 
TV sets

ANSWER

EXPLANATION

3. For proper operation, a magnetron must be accompanied by a :

(a) cavity resonator
(b) strong electric field
(c) permanent magnet
(d)
 high dc voltage

ANSWER

EXPLANATION

4. If the instantaneous RF potentials on the two sides of a magnetron cavity are of opposite polarity, the operation is in the :

(a) π/4 mode
(b) π/2 mode
(c) π mode
(d) 
2π mode

ANSWER

EXPLANATION

5. A high-power microwave pulse of the order of megawatts can be generated by a :

(a) traveling-wave tube
(b) magnetron
(c) reflex klystron
(d) 
gunn diode

ANSWER

EXPLANATION

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