Description : How can the frequency be changed in the frequency determining network?
Last Answer : By changing the value.
Description : Can a parallel LC circuit be used as the frequency determining network for an rf amplifier?
Last Answer : Yes.
Description : What is the purpose of a frequency-determining network in an rf amplifier?
Last Answer : To provide maximum impedance at the desired frequency.
Description : What are three methods for determining if a fuse is open?
Last Answer : Visual inspection, indicators, and using a meter
Description : What is the determining factor in classifying whether a radio wave is a ground wave or a space wave?
Last Answer : Whether the component of the wave is travelling along the surface or over the surface of the earth.
Description : What is the equation for determining average voltage in a half-wave rectifier?
Last Answer : Eavg = 0.318 × Emax
Description : What is the formula for determining total reactance in a series circuit where the values of XC and XL are known?
Last Answer : X = XL – XC or X = XC - XL
Description : What is the most accurate method of determining the condition of an electron tube?
Last Answer : Testing the tube in its circuit
Description : What four switched networks are part of the defense communications system?
Last Answer : AUTOVON, AUTOSEVOCOM, AUTODIN, and DSSCS.
Description : What do wide area networks provide for?
Last Answer : Global connections.
Description : What are the different designs of local area networks called?
Last Answer : Broadband and baseband.
Description : How many designs of local area networks are there that can be used?
Last Answer : Two
Description : A portable hand-held and is very handy for determining the power consumption and power factor of individual motors and other inductive devices. a) Voltmeter and wattmeter. b) Wattmeter and power factor meter. c) Light meter and flash meter.
Last Answer : Voltmeter and wattmeter.
Description : Most networks employ devices for routing services. Routers work at which of the Following OSI Layers? 1) Transport 2) Network 3) Presentation 4) Session
Last Answer : 2) Network
Description : Most networks employ devices for routing services. Routers work at which of the Following OSI Layers? 1 Transport 2 Network 3 Presentation 4 Session
Last Answer : 2 Network
Description : ________ in IoT as one of the key characteristics, devices have different hardware platforms and networks. A. Sensors B. Heterogeneity C. Security D. Connectivity
Last Answer : B. Heterogeneity
Description : What are the three types of circuit control devices?
Last Answer : Switches, solenoids, and relays.
Description : The method of determining the bandwidth of any processing system is ______. A. Bandwidth analysis B. Frequency spectrum C. Spectral analysis D. Frequency analysis
Last Answer : C. Spectral analysis
Description : Which RC network provides better frequency stability, three-section or four-section?
Last Answer : Four-section.
Description : Ferrite devices are useful in microwave applications because they possess what properties?
Last Answer : Magnetic properties and high resistance
Description : What is the name given to a variety of rotary electromechanical, position sensing devices?
Last Answer : The synchro.
Description : What two basic types of magnetic devices are used as error detectors?
Last Answer : E-transformer and control transformers.
Description : What are the two most common semiconductor materials used in electronic and electro-optic devices?
Last Answer : Silicon and gallium arsenide.
Description : Early analog computers were what type of devices?
Last Answer : Mechanical or electromechanical.
Description : What is the primary advantage of bulk-effect devices over normal pn-junction semiconductors?
Last Answer : Larger microwave power outputs.
Description : Computer-aided layout is used to prepare _______ devices.
Last Answer : Complex.
Description : Why are disk storage devices popular?
Last Answer : Largely because of their direct access capabilities.
Last Answer : Largely because of their direct access capabilities
Description : Whenever data is transferred between devices, it involves the exchange of prearranged signals; what is this process called?
Last Answer : Handshaking.
Description : What are the two types of circuit protection devices?
Last Answer : Fuses and circuit breakers
Description : How are circuits protections devices connected to the circuit they are intended to protect and why are they connected in this way?
Last Answer : In series, so total current will be stopped when the device opens.
Description : Why are digital multimeters well suited for testing sensitive devices?
Last Answer : The current flow through the component is limited to 1 milliamp.
Description : Why do electronic devices use amplifiers?
Last Answer : To amplify the input signal to a usable level.
Description : Why are shaded-pole motors used to drive only very small devices?
Last Answer : They have very weak starting torques.
Description : The resonant frequency of electron wobble can be changed by variation of what force?
Last Answer : The applied magnetic field.
Description : What two variables determine the primary frequency of a resonant cavity?
Last Answer : Size and shape of the cavity.
Description : How will an iris that has portions along both the "a" and "b" dimension walls act at the resonant frequency?
Last Answer : As a shunt resistance.
Description : What determines the frequency, bandwidth, and power handling capability of a waveguide probe?
Last Answer : Size and shape
Description : When the frequency is decreased so that two quarter wavelengths are longer than the "a" (wide) dimension of the waveguide, what will happen?
Last Answer : Energy will no longer pass through the waveguide.
Description : What happens to the bus bar dimensions of the waveguide when the frequency is increased?
Last Answer : The bus bar becomes wider.
Description : The frequency range of a waveguide is determined by what dimensions?
Last Answer : . The "a" dimension.
Description : What is the primary lower-frequency limitation of waveguides?
Last Answer : Physical size.
Description : What is the region of the frequency spectrum from 1000 MHz to 100,000 MHz called?
Last Answer : Microwave region.
Description : In an astable multivibrator, which components determine the pulse repetition frequency?
Last Answer : RC coupling networks.
Description : hat establishes the value of the current that flows in the output of figure 4-43?
Last Answer : The frequency of the voltage input.
Description : A cavity that vibrates at its natural frequency produces a louder sound than at other frequencies. What term is used to describe this phenomenon?
Last Answer : Resonance.
Description : The apparent change in frequency or pitch because of motion is explained by what effect?
Last Answer : The Doppler effect.
Description : What component(s) is/are used for low-frequency compensation for Q2?
Last Answer : R9 and C5.
Description : What component(s) is/are used for high-frequency compensation for Q1?
Last Answer : L1, L2, and R5.
Description : What component in an amplifier circuit tends to limit the low-frequency response of the amplifier?
Last Answer : The coupling capacitor (C3).