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