Here are the last 25 questions to complete the set of 100:
Communication Systems
* What is the basic communication system model?
* Transmitter, channel, and receiver.
* Source, encoder, channel, decoder, and destination.
* Modulator, demodulator, and channel.
* Amplifier, filter, and antenna.
* What is modulation?
* The process of varying one or more properties of a periodic waveform (carrier signal) with respect to an instantaneous value of a modulating signal.
* The process of converting an analog signal into a digital signal.
* The process of amplifying a signal.
* The process of filtering a signal.
* What is demodulation?
* The process of recovering the original modulating signal from a modulated carrier.
* The process of converting a digital signal into an analog signal.
* The process of amplifying a signal.
* The process of filtering a signal.
* What is bandwidth?
* The range of frequencies over which a signal is transmitted.
* The power of a signal.
* The amplitude of a signal.
* The phase of a signal.
* What is noise?
* Unwanted signals that interfere with the desired signal.
* A periodic signal.
* A constant signal.
* A sinusoidal signal.
Electromagnetic Theory
* What is Maxwell's equations?
* A set of equations that describe the behavior of electric and magnetic fields.
* A set of equations that describe the behavior of gravitational fields.
* A set of equations that describe the behavior of sound waves.
* A set of equations that describe the behavior of heat transfer.
* What is electromagnetic radiation?
* Energy radiated in the form of electromagnetic waves.
* Energy radiated in the form of sound waves.
* Energy radiated in the form of heat.
* Energy radiated in the form of gravitational waves.
* What is the speed of light in a vacuum?
* Approximately 3 x 10^8 meters per second.
* Approximately 3 x 10^6 meters per second.
* Approximately 3 x 10^4 meters per second.
* Approximately 3 x 10^2 meters per second.
* What is polarization of light?
* The orientation of the electric field vector in an electromagnetic wave.
* The orientation of the magnetic field vector in an electromagnetic wave.
* The frequency of an electromagnetic wave.
* The wavelength of an electromagnetic wave.
* What is diffraction?
* The bending of waves around obstacles.
* The bending of light rays when they pass from one medium to another.
* The scattering of light by particles.
* The interference of light waves.
Microprocessors and Microcontrollers
* What is a microprocessor?
* A programmable integrated circuit that performs arithmetic, logical, control, and input/output operations.
* A device that stores data.
* A device that amplifies signals.
* A device that filters signals.
* What is a microcontroller?
* A microprocessor with integrated memory and input/output ports on a single chip.
* A microprocessor without integrated memory and input/output ports.
* A device that stores data.
* A device that amplifies signals.
* What is an assembly language?
* A low-level programming language that uses mnemonics to represent machine instructions.
* A high-level programming language that uses English-like syntax.
* A programming language that uses mathematical formulas.
* A programming language that uses graphical symbols.
* What is a compiler?
* A software program that translates high-level language code into machine code.
* A software program that executes machine code.
* A software program that debugs code.
* A software program that writes code.
* What is an interpreter?
* A software program that executes high-level language code line by line.
* A software program that translates high-level language code into machine code.
* A software program that debugs code.
* A software program that writes code.
Signal Processing
* What is a signal?
* Any physical quantity that conveys information.
* A constant value.
* A periodic function.
* A random function.
* What is signal conditioning?
* The process of modifying a signal to make it suitable for further processing.
* The process of amplifying a signal.
* The process of filtering a signal.
* The process of modulating a signal.
* What is filtering?
* The process of removing unwanted frequency components from a signal.
* The process of amplifying a signal.
* The process of modulating a signal.
* The process of demodulating a signal.
* What is sampling?
* The process of converting an analog signal into a digital signal.
* The process of converting a digital signal into an analog signal.
* The process of amplifying a signal.
* The process of filtering a signal.
* What is quantization?
* The process of assigning a discrete value to a continuous range of values.
* The process of converting an analog signal into a digital signal.
* The process of converting a digital signal into an analog signal.
* The process of amplifying a signal.
Electrical Machines II
* What is a stepper motor?
* A synchronous motor that rotates in discrete steps.
* A DC motor that rotates continuously.
* An AC motor that rotates continuously.
* A motor that converts electrical energy into mechanical energy.
* What is a servo motor?
* A motor that can be precisely controlled to move to a specific position.
* A motor that rotates continuously.
* A motor that converts electrical energy into mechanical energy.
* A motor that amplifies signals.
* What is a brushless DC motor?
* A DC motor that uses electronic commutation instead of mechanical brushes.
* A DC motor that uses mechanical brushes.
* An AC motor that uses electronic commutation.
* An AC motor that uses mechanical brushes.
* What is a single-phase induction motor?
* An induction motor that uses a single-phase AC supply.
* An induction motor that uses a three-phase AC supply.
* A DC motor that uses a single-phase DC supply.
* A DC motor that uses a three-phase DC supply.
* What is a three-phase induction motor?
* An induction motor that uses a three-phase AC supply.
* An induction motor that uses a single-phase AC supply.
* A DC motor that uses a three-phase DC supply.
* A DC motor that uses a single-phase DC supply.
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