A) high quantization error B) low accuracy C) slow operation D) large number of comparators required
A) amplify the signal B) generate clock pulses C) remove high-frequency noise D) hold the input signal constant during conversion
A) Sampling B) quantization C) filtering D) encoding
A) ratio of signal to noise B) sampling frequency error C) sum of all sampled values D) difference between actual and quantized value
A) converting binary to decimal B) taking discrete time samples of a continuous signal C) filtering unwanted frequencies D) dividing the signal into equal voltage levels
A) output current B) quantization error C) resolution speed D) sampling frequency
A) infinite input impedance and zero output impedance B) both input and output impedances are zero C) zero input impedance and infinite output impedance D) both input and output impedances are infinite
A) output terminal B) inverting input C) ground terminal D) non-inverting input
A) summing amplifier B) comparator C) differential amplifier D) integrator
A) reduce bandwidth B) reduce distortion and stabilize gain C) increase gain D) increase input impedance
A) twice the highest signal frequency B) four times the signal frequency C) half the signal frequency D) equal to the signal frequency
A) Kirchhoff's theorem B) Nyquist theorem C) Fourier theorem D) Ohm's law
A) encoding binary data B) converting each sample into discrete amplitude levels C) sampling the signal in time D) filtering the analog signal
A) counting clock pulses during conversion B) comparing input voltage with reference voltages step-by-step C) integrating input voltage over time D) sampling only at zero crossings
A) voltage follower B) non-inverting amplifier C) differential amplifier D) inverting amplifier
A) demodulation B) digital-to-analog Conversion C) analog-to-digital Conversion D) modulation
A) generate clock pulses B) amplify the signal C) remove high-frequency noise D) hold the input signal constant during conversion
A) Analog B) Digital
A) Doubles B) Remains the same C) Increases D) Decreases
A) Period B) Throughput C) Propagation speed D) Frequency
A) 0.1 seconds B) 0.01 second C) 0.001 seconds D) 1 second
A) Phase B) Sine wave C) Digital signal D) Frequency
A) Diode B) resistor C) Composet Signal D) Transistors
A) 3.96 MHz B) 396 kHz C) 360 kHz D) 36 MHz
A) 1947 B) 1948 C) 1947 D) 1950
A) 1908 B) 1906 C) 1907 D) 1910
A) Phase B) Wavelength C) Peak amplitude D) Frequency
A) 1975 B) 1972 C) 1978 D) 1971
A) Analog B) Digital
A) Digital signal B) Bit rate C) Bps D) Baud rate
A) Aperiodic and continuous B) Aperiodic and discrete C) Periodic and discrete D) Periodic and continuous
A) Digital modulation B) ASK C) PSK D) Analog modulation
A) Aperiodic and continuous B) Capture effect C) Fourier analysis
A) DIGITAL ELECTRONICS B) COMMUNICATION ELECTRONICS C) AUTOMOTIVE ELECTRONICS D) ELECTRIC POWER
A) Noise B) Distortion C) No Answer D) Reflection
A) VACUUM TUBES B) VACUUM TUBE DIODE C) VACUUM TUBE TRIODE D) VACUUM TUBE TETRODE
A) ASK B) PSK C) Digital Modulation D) Analog modulation
A) Propagation time B) Propagation speed C) Throughput
A) Wavelength B) No answer C) Phase D) Propagation time
A) Time B) Power C) Bandwidth D) Phase
A) 5 bits/second B) 50 bits/second C) 5000 bits/second D) 500 bits/second
A) VACUUM TUBE TRIODE B) VACUUM TUBE DIODE C) VACUUM TUBE D) VACUUM TUBE TETRODE
A) VACUUM TUBE TETRODE B) VACUUM TUBE TRIODE C) VACUUM TUBE PENTODE D) VACUUM TUBE
A) Channel B) Transducer C) Amplifier D) Repeater
A) DIGITAL ELECTRONICS B) COMMUNICATIONS ELECTRONICS C) INDUSTRIAL ELECTRONICS D) ELECTRIC POWER
A) Operational Amplifier B) Differential Amplifier
A) VACUUM TUBE TETRODE B) VACUUM TUBE DIODE C) VACUUM TUBE
A) wavelength B) Propagation speed C) Throughput
A) VACUUM TUBE TRIODE B) VACUUM TUBE DIODE C) VACUUM TUBES D) VACUUM TUBE TETRODE
A) Input transducer B) Output transducer C) Repeater D) Encoder
A) No answer B) Phase C) Propagation time D) Wavelength
A) Electronics B) Mechatronics C) Electronics D) Physics
A) Peak amplitude B) Wavelength C) Frequency D) Time
A) Transducer B) Transponder C) ICs D) Amplifier
A) 50 Terabits/second B) 5 Petabits/second C) 10 Terabits/second D) 5 Terabits/second
A) User B) Amplifier C) Sender D) Channel
A) INDUSTRIAL ELECTRONICS B) ELECTRIC POWER C) DIGITAL ELECTRONICS D) AUTOMOTIVE ELECTRONICS
A) Decibel B) Crosstalk C) Attenuation D) Distortion
A) No answer B) Propagation time C) Throughput D) Propagation speed
A) Amplifier B) Transponder C) Digital modulation D) Analog modulation
A) Sender B) User C) Channel D) Amplifier
A) simplicity B) very high speed C) low power consumption D) low cost
A) binary form B) analog voltage C) current form D) sinusoidal waveform
A) One B) Very high C) Very small D) Zero
A) differential amplifier B) summing amplifier C) comparator D) integrator
A) Sound sensor B) Light sensor C) Motion sensor D) Magnetic sensor
A) a device that converts one form of energy into another B) A device that stores data C) A device that controls current flow D) a device that amplifies signals
A) increase memory size B) store program code C) measure time intervals or generate delays D) control power supply
A) the feedback terminal B) the positive supply voltage C) the non-inverting input terminal D) the positive output voltage
A) Reduce bandwidth B) reduce distortion and stabilize gain C) increase gain D) increase input impedance
A) twice the highest signal frequency B) four times the signal frequency C) Equal to the signal frequency D) half the signal frequency
A) comparing input voltage with reference voltages step-by-step B) counting clock pulses during conversion C) integrating input voltage over time D) Osampling only at zero crossings
A) Inverting input B) Grounded terminal C) Non inverting input
A) 1947 B) 1904 C) 1901 D) 1906
A) MEDICAL ELECTRONICS B) INDUSTRIAL ELECTRONICS C) AUTOMOTIVE ELECTRONICS D) DIGITAL ELECTRONIC
A) 1958 B) 1961 C) 1959 D) 1960
A) Attenuation B) Capture effect C) Crosstalk D) Distortion
A) VACUUM TUBE TRIODE B) VACUUM TUBE DIODE C) VACUUM TUBE TETRODE D) VACUUM TUBE DIODE
A) VACUUM TUBE DIODE B) VACUUM TUBE TETRODE C) VACUUM TUBE TRIODE D) VACUUM TUBE PENTODE
A) power dissipated in the last stage B) power from the DC power supply C) input signal power
A) heat sink B) capacitor C) transformer D) inductor
A) the same as class A B) Very low C) The same as class B D) Very high
A) power amplifier B) Oscillator C) Band-pass filter D) Rectifier
A) power gain B) Efficiency C) Gain D) SNR
A) 360⁰ B) 90° C) 270⁰ D) 180°
A) Class A B) Class AB C) Class B D) Class C
A) the same as class B B) slightly less than class B C) about the same as a class A D) higher than class B
A) high heat generation B) low power output C) high cost D) crossover distortion
A) 95% B) 40% C) 20% D) 79%
A) Band-pass filter B) Oscillator C) Rectifier D) power amplifier
A) one-half of the input cycle B) all of the input cycle C) a very small percentage of the input cycle D) more than 180 degrees of input cycle
A) efficiency B) Gain C) power gain D) SNR
A) Power amplifier B) Operational amplifier C) Voltage amplifier D) Mixer circuit
A) Class A B) Class D C) Class B D) Class C
A) Signal filtering B) Increase signal power to drive a load C) Reduce power consumption D) Signal generation
A) Class A B) class AB C) Class B D) Class C
A) greater than classes A, AB, B B) Less than class A C) Less than class B D) Less than class AB
A) precision measurement instruments B) low noise preamplifiers C) portable battery-operated devices D) precision measurement instruments
A) current mirror B) voltage-divider C) differential D) Push-pull
A) Low efficiency and high distortion B) High efficiency and low distortion C) Low efficiency and low distortion D) High efficiency and high distortion |