Neets Mod 11 Microwave Principles Jeopardy Template

Microwaves	Waveguide Theory	FUN-damentals	Terminology	Tie Breakers!
100 Microwave What is the portion of the electromagnetic spectrum which falls between 1000 megahertz and 100,000 megahertz referred to as?	100 Cutoff Frequency What frequency in a waveguide is a frequency that would cause angles of incidence and reflection to be zero degrees?	100 Electrolysis What electrical action takes place that causes very rapid corrosion of the metals when two dissimilar metals such as copper and steel are in direct contact?	100 Attenuator What component reduces the power of a signal without distorting its waveform.	100 Electronic Noise What is the primary limitation on receiver sensitivity and is the name given to very small randomly fluctuating voltages that are always present in electronic circuits?
200 Electromagnetic Convertional circuit theory is based on voltages and currents while microwave theory is based on what type of fields?	200 Dummy Load A waveguide may be terminated in a resistive load that is matched to the characteristic impedance of the waveguide. The resistive load is most often called a what?	200 Resonant Cavity What is any space completely enclosed by conducting walls that can contain oscillating electromagnetic fields and posses resonant properties?	200 Klystrons What are velocity-modulated tubes that are used in radar and communications equipment as oscillators and amplifiers?	200 Schottky Barrier Diode What is actually a variation of the point-contact diode in which the metal semiconductor junction is a surface rather than a point contact?
300 Coaxial What type of cable is more efficient than two-wire lines for transferring electromagnetic energy because the fields are completely confined by the conductors?	300 Physical Size What is the primary low-frequency limitation of waveguides?	300 Inductance The resonant frequency of a cavity can be varied by changing any of three parameters: Volume, Capacitance, or what else?	300 Ferrite What is a device that is composed of material that causes it to have useful magnetic properties and, at the same time, high resistance to current flow?	300 Power Gain What property of an antenna is a ratio of the radiated power to that of the reference antenna, which is usually a basic dipole?
400 Waveguides What is the most efficient way to transfer electromagnetic energy?	400 Choke Joint Sections of a waveguide must be taken apart for maintenance and repair. A semipermanent joint most commonly used for this pupose is called a what?	400 Tuning Changing the frequencies of a cavity is known as what?	400 Transit Time What is the time required for electrons to travel from the cathode to the plate?	400 To quit my post only when properly relieved What is your 5th general order?
500 Circular What is a waveguide device that allows energy to travel in one direction only?	500 Group Velocity What is the forward-progress velocity of the wave front in a waveguide called?	500 Duplexer What permits a system to use the same antenna for both transmitting and receiving?	500 Mechanical Tuning The frequency at which the oscillator operates is determined by the physical positioning of the tuner screw in the cavity. Changing the output frequency by this method is called what?	500 The Skin Effect The current-carrying area of the inner conductor is restricted to a very small layer at the surface of the conductor by an action called

NEETS MOD 11 MICROWAVE PRINCIPLES

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