1-35.
1-36.
1-37.
1-38.
1-39.
1-40.
Which of the following elements is NOT a part of
an electron gun?
1. Anode
2. Cathode
3. Bias plate
4. Control grid
Multicavity klystron amplifiers can have what total
number of cavities?
1. One
2. Five
3. Three
4. Seven
To overcome beam spreading on klystron
amplifiers, what type of field is used?
1. Electron
2. Magnetic
3. Axial magnetic
4. Mutual repulsion
In most klystron tubes, the anode and the RF
section are connected in the vacuum envelope.
These connected parts are called the tube
1. current
2. biasing
3. plating
4. body
Klystron amplifier equipment does NOT normally
have undercurrent protection in each of the
electromagnetic circuits.
1. True
2. False
In a very-high-power klystron, the body current is
often limited to what percent of the total beam
current?
1.
8
2.
2
3.
3
4.
5
1-41. All high-powered klystrons use what type of
cooling?
1. Electronic
2. Liquid
3. Gas
4. Air
1-42. What is the main source of heat in the klystron
amplifier package?
1. Grid power supply
2. Beam power supply
3. Plate power supply
4. Biasing power supply
1-43. What type of noise usually occurs because the
electron beam is never perfectly homogeneous?
1. Cavity
2. White
3. Grid
4. Bias
1-44. What is the primary use for traveling-wave tubes?
1.
2.
3.
4.
Voltage amplification
Current amplification
Power amplification
Bias amplification
1-45. A forward-wave TWT may be constructed to serve
as what type of oscillator?
1. Stable
2. Forward
3. Internal
4. Microwave
1-46. A pulsed high-voltage power supply is called a
1. mixer
2. oscillator
3. amplifier
4. modulator
4
