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