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